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1,5-Cyclooctadiene is the organic compound with the chemical formula C₈H₁₂. Generally abbreviated COD, this diene is a useful precursor to other organic compounds and serves as a ligand in organometallic chemistry.^[1]^[2]

Synthesis

1,5-Cyclooctadiene can be prepared by dimerization of butadiene in the presence of a nickel catalyst, a coproduct being vinylcyclohexene. Approximately 10,000 tons were produced in 2005.^[3]

Organic reactions

COD reacts with borane to give 9-borabicyclo[3.3.1]nonane,^[4] commonly known as 9-BBN, a reagent in organic chemistry used in hydroborations:

COD adds SCl₂ (or similar reagents) to give 2,6-dichloro-9-thiabicyclo[3.3.1]nonane:^[5]

2,6-Dichloro-9-thiabicyclo[3.3.1]nonane, synthesis and reactions

The resulting dichloride can be further modified as the di-azide or di-cyano derivative in a nucleophilic substitution aided by anchimeric assistance.

Metal complexes

Structure of M(COD)₂ for M = Ni, Pd, Pt.

1,5-COD typically binds to low-valent metals via both alkene groups. The complex Ni(COD)₂ is a precursor to several nickel(0) and Ni(II) complexes. Metal-COD complexes are attractive because they are sufficiently stable to be isolated, often being more robust than related ethylene complexes. The stability of COD complexes is attributable to the chelate effect. The COD ligands are easily displaced by other ligands, such as phosphines.

Ni(COD)₂ is prepared by reduction of anhydrous nickel acetylacetonate in the presence of the ligand, using triethylaluminium ^[6]

1/3 [Ni(C₅H₇O₂)₂]₃ + 2 COD + 2 Al(C₂H₅)₃ → Ni(COD)₂ + 2 Al(C₂H₅)₂(C₅H₇O₂) + C₂H₄ + C₂H₆

The related Pt(COD)₂ is prepared by a more circuitous route involving the dilithium cyclooctatetraene:^[7]

Li₂C₈H₈ + PtCl₂(COD) + 3 C₇H₁₀ → [Pt(C₇H₁₀)₃] + 2 LiCl + C₈H₈ + C₈H₁₂

Pt(C₇H₁₀)₃ + 2 COD → Pt(COD)₂ + 3 C₇H₁₀

Extensive work has been reported on complexes of COD, much of which can has been described in volumes 25, 26, and 28 of Inorganic Syntheses. The platinum complex has been used in many syntheses:

Pt(COD)₂ + 3 C₂H₄ → Pt(C₂H₄)₃ + 2 COD

COD complexes are useful as starting materials, one noteworthy example is the reaction:

Ni(COD)₂ + 4 CO_(g)

\rightleftharpoons

Ni(CO)₄ + 2 COD

The product Ni(CO)₄ is highly toxic, thus it is advantageous to generate it in the reaction vessel as opposed to being dispensed directly. Other low-valent metal complexes of COD include Mo(COD)(CO)₄, [RuCl₂(COD)]_n, and Fe(COD)(CO)₃. COD is an especially important in the coordination chemistry of rhodium(I) and iridium(I), examples being Crabtree's catalyst and cyclooctadiene rhodium chloride dimer.

The M(cod)₂ complexes with nickel, palladium, and platinum have tetrahedral geometry, whereas [M(COD)₂]⁺ complexes of rhodium and iridium are square planar.

(E,E)-COD

The highly strained trans-trans isomer of 1,5-cyclooctadiene is a known compound. (E,E)-COD was first synthesized by Whitesides and Cope in 1969 by photoisomerization of the cis compound.^[8] Another synthesis (double elimination reaction from a cyclooctane ring) was reported by Huisgen in 1987.^[9] The molecular conformation of (E,E)-COD is twisted rather than chair-like. The compound has been investigated as a click chemistry mediator.^[10]

References

43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro.

Template:Cycloalkenes

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In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

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↑ One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
↑ One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang

[buehler-1] Cite error: Invalid <ref> tag; no text was provided for refs named buehler

[shriver-2] Cite error: Invalid <ref> tag; no text was provided for refs named shriver

[thomas-3] Cite error: Invalid <ref> tag; no text was provided for refs named thomas

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[ittel-6] Cite error: Invalid <ref> tag; no text was provided for refs named ittel

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[8] One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang

[9] One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang

[10] One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang

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+| ImageSize1 = 100
+| ImageName1 = Ball and stick model of 1,5-cyclooctadiene
+| SystematicName = Cycloocta-1,5-diene<ref>{{Cite web|title = AC1L1QCE - Compound Summary|url = http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=8135|work = PubChem Compound|publisher = National Center for Biotechnology Information|accessdate = 14 October 2011|location = USA|date = 26 March 2005|at = Identification and Related Records}}</ref>
+| Section1 = {{Chembox Identifiers
+|  Abbreviations = 1,5-COD
+|  CASNo = 111-78-4
+|  CASNo_Ref = {{cascite|correct|CAS}}
+|  CASNo1 = 1552-12-1
+|  CASNo1_Comment = (''Z'',''Z'')
+|  CASNo2 = 5259-71-2
+|  CASNo2_Comment =  (''Z'',''E'')
+|  CASNo3 = 17612-50-9
+|  CASNo3_Comment =  (''E'',''E'')
+|  PubChem = 8135
+|  PubChem_Ref = {{Pubchemcite|correct|Pubchem}}
+|  PubChem1 = 82916
+|  PubChem1_Ref = {{Pubchemcite|correct|Pubchem}}
+|  PubChem1_Comment =   (''Z'',''Z'')
+|  PubChem2 = 5364364
+|  PubChem2_Ref = {{Pubchemcite|correct|Pubchem}}
+|  PubChem2_Comment =  (''Z'',''E'')
+|  PubChem3 = 5702534
+|  PubChem3_Ref = {{Pubchemcite|correct|Pubchem}}
+|  PubChem3_Comment =  (''E'',''E'')
+|  ChemSpiderID = 7843
+|  ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}
+|  ChemSpiderID1 = 74815
+|  ChemSpiderID1_Ref = {{chemspidercite|correct|chemspider}}
+|  ChemSpiderID1_Comment =  (''Z'',''Z'')
+|  ChemSpiderID2 = 18520443
+|  ChemSpiderID2_Ref = {{chemspidercite|correct|chemspider}}
+|  ChemSpiderID2_Comment =  (''Z'',''E'')
+|  ChemSpiderID3 = 19971660
+|  ChemSpiderID3_Ref = {{chemspidercite|correct|chemspider}}
+|  ChemSpiderID3_Comment =  (''E'',''E'')
+|  EINECS = 203-907-1
+|  UNNumber = 2520
+|  MeSHName = 1,5-cyclooctadiene
+|  RTECS = GX9560000<br />
+GX9620000  (''Z'',''Z'')
+|  Beilstein = 2036542<br />
+1209288  (''Z'',''Z'')
+|  SMILES = C1CC=CCCC=C1
+|  StdInChI = 1S/C8H12/c1-2-4-6-8-7-5-3-1/h1-2,7-8H,3-6H2/b2-1-,8-7-
+|  StdInChI_Ref = {{stdinchicite|correct|chemspider}}
+|  InChI = 1/C8H12/c1-2-4-6-8-7-5-3-1/h1-2,7-8H,3-6H2/b2-1-,8-7-
+|  StdInChIKey = VYXHVRARDIDEHS-QGTKBVGQSA-N
+|  StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
+|  InChIKey = VYXHVRARDIDEHS-QGTKBVGQBM
+}}
+| Section2 = {{Chembox Properties
+|  C = 8
+|  H = 12
+|  ExactMass = 108.093900384 g mol<sup>-1</sup>
+|  Appearance = Colorless liquid
+|  Density = 0.882 g/mL
+|  MeltingPtK = 204
+|  BoilingPtK = 423
+|  VaporPressure = 910 Pa
+|  RefractIndex = 1.493
+}}
+| Section3 = {{Chembox Thermochemistry
+|  DeltaHf = 21-27 kJ mol<sup>-1</sup>
+|  DeltaHc = -4.890--4.884 MJ mol<sup>-1</sup>
+|  Entropy = 250.0 J K<sup>-1</sup> mol<sup>-1</sup>
+|  HeatCapacity = 198.9 J K<sup>-1</sup> mol<sup>-1</sup>
+}}
+| Section4 = {{Chembox Hazards
+|  GHSPictograms = {{GHS flame}} {{GHS health hazard}}
+|  GHSSignalWord = '''DANGER'''
+|  HPhrases = {{H-phrases|226|304|315|317|319|334}}
+|  PPhrases = {{P-phrases|261|280|301+310|305+351+338|331|342+311}}
+|  EUClass = {{Hazchem Xn}}
+|  RPhrases = {{R10}}, {{R36/38}}, {{R42/43}}, {{R65}}
+|  SPhrases = {{S23}}, {{S26}}, {{S36/37}}, {{S62}}
+|  FlashPt = 32–38&nbsp;°C
+|  AutoignitionC = 222
+}}
+}}
+'''1,5-Cyclooctadiene''' is the [[organic compound]] with the chemical formula C<sub>8</sub>H<sub>12</sub>.  Generally abbreviated COD, this [[diene]] is a useful precursor to other organic compounds and serves as a [[ligand]] in [[organometallic chemistry]].<ref name="buehler" /><ref name="shriver" />
+== Synthesis ==
+,5-Cyclooctadiene can be prepared by dimerization of [[butadiene]] in the presence of a nickel catalyst, a coproduct being vinylcyclohexene.  Approximately 10,000 tons were produced in 2005.<ref name="thomas" />
+== Organic reactions ==
+COD reacts with borane to give [[9-Borabicyclo(3.3.1)nonane|9-borabicyclo[3.3.1]nonane]],<ref name="john" /> commonly known as 9-BBN, a [[reagent]] in organic chemistry used in [[Hydroboration–oxidation reaction|hydroboration]]s:
+:[[File:Synthesis of 9-BBN dimer.png|450px]]
+COD adds SCl<sub>2</sub> (or similar reagents) to give 2,6-dichloro-9-thiabicyclo[3.3.1]nonane:<ref name="bishop" />
+:[[File:CODSCl2.png|450px|2,6-Dichloro-9-thiabicyclo[3.3.1]nonane, synthesis and reactions]]
+The resulting dichloride can be further modified as the di-[[azide]] or di-[[cyano]] derivative in a [[nucleophilic substitution]] aided by [[anchimeric assistance]].
+== Metal complexes ==
+[[File:M(cod)2.png|thumb|240px|left|Structure of M(COD)<sub>2</sub> for M = Ni, Pd, Pt.]]
+,5-COD typically binds to low-valent metals via both alkene groups. The complex [[Nickel bis(cyclooctadiene)|Ni(COD)<sub>2</sub>]] is a precursor to several nickel(0) and Ni(II) complexes.  Metal-COD complexes are attractive because they are sufficiently stable to be isolated, often being more robust than related ethylene complexes.  The stability of COD complexes is attributable to the [[chelate effect]].  The COD ligands are easily displaced by other ligands, such as phosphines.
+Ni(COD)<sub>2</sub> is prepared by reduction of [[anhydrous]] nickel [[acetylacetonate]] in the presence of the ligand, using [[triethylaluminium]]
+<ref name="ittel" />
+:1/3 [Ni(C<sub>5</sub>H<sub>7</sub>O<sub>2</sub>)<sub>2</sub>]<sub>3</sub>  +  2 COD  +  2 Al(C<sub>2</sub>H<sub>5</sub>)<sub>3</sub>  →  Ni(COD)<sub>2</sub>  +  2 Al(C<sub>2</sub>H<sub>5</sub>)<sub>2</sub>(C<sub>5</sub>H<sub>7</sub>O<sub>2</sub>)  +  C<sub>2</sub>H<sub>4</sub>  +  C<sub>2</sub>H<sub>6</sub>
+The related Pt(COD)<sub>2</sub> is prepared by a more circuitous route involving the dilithium [[cyclooctatetraene]]:<ref name="crascall" />
+:Li<sub>2</sub>C<sub>8</sub>H<sub>8</sub>  +  PtCl<sub>2</sub>(COD)  +  3 C<sub>7</sub>H<sub>10</sub> → [Pt(C<sub>7</sub>H<sub>10</sub>)<sub>3</sub>] +  2 LiCl  +  C<sub>8</sub>H<sub>8</sub>  +  C<sub>8</sub>H<sub>12</sub>
+:Pt(C<sub>7</sub>H<sub>10</sub>)<sub>3</sub> + 2 COD  →  Pt(COD)<sub>2</sub>  +  3 C<sub>7</sub>H<sub>10</sub>
+Extensive work has been reported on complexes of COD, much of which can has been described in volumes 25, 26, and 28 of ''[[Inorganic Syntheses]]''. The platinum complex has been used in many syntheses:
+:Pt(COD)<sub>2</sub>  +  3 C<sub>2</sub>H<sub>4</sub>  →  Pt(C<sub>2</sub>H<sub>4</sub>)<sub>3</sub>  +  2 COD
+COD complexes are useful as starting materials, one noteworthy example is the reaction:
+:Ni(COD)<sub>2</sub>  +  4 CO<sub>(g)</sub> <math>\rightleftharpoons</math> Ni(CO)<sub>4</sub>  +  2 COD
+The product Ni(CO)<sub>4</sub> is highly toxic, thus it is advantageous to generate it in the reaction vessel as opposed to being dispensed directly.  Other low-valent metal complexes of COD include Mo(COD)(CO)<sub>4</sub>, [RuCl<sub>2</sub>(COD)]<sub>n</sub>, and Fe(COD)(CO)<sub>3</sub>.  COD is an especially important in the coordination chemistry of rhodium(I) and iridium(I), examples being [[Crabtree's catalyst]] and [[cyclooctadiene rhodium chloride dimer]].
+The M(cod)<sub>2</sub> complexes with nickel, palladium, and platinum have [[Tetrahedral molecular geometry|tetrahedral geometry]], whereas [M(COD)<sub>2</sub>]<sup>+</sup> complexes of rhodium and iridium are [[Square planar molecular geometry|square planar]].
+==(''E'',''E'')-COD==
+[[File:EE-COD synthesis.svg|thumb|600px|center|E,E-COD synthesis (Stöckmann et al. 2011)]]
+The highly strained [[Cis–trans isomerism|''trans''-''trans'' isomer]] of 1,5-cyclooctadiene is a known compound. (''E'',''E'')-COD was first synthesized by [[George M. Whitesides|Whitesides]] and [[Arthur C. Cope|Cope]] in 1969 by [[photoisomerization]] of the ''cis'' compound.<ref>{{cite journal | title = Irradiation of cis,cis-1,5-cyclooctadiene in the presence of copper(I) chloride | author1= [[George M. Whitesides]] | author2 = Gerald L. Goe | author3= [[Arthur C. Cope]] | journal = J. Am. Chem. Soc. | year = 1969 | volume = 91 | issue = 10 | pages = 2608–2616 | doi = 10.1021/ja01038a036}}</ref> Another synthesis (double elimination reaction from a cyclooctane ring) was reported by [[Rolf Huisgen|Huisgen]] in 1987.<ref>{{cite journal | title = Preparation and conformation of (E,E)-1,5-cyclooctadiene | author1 = Dieter Boeckh | author2 = [[Rolf Huisgen]] | author3 = Heinrich Noeth | journal = J. Am. Chem. Soc. | year = 1987 | volume = 109 | issue = 4 | pages = 1248–1249 | doi = 10.1021/ja00238a046}}</ref> The [[molecular conformation]] of (''E'',''E'')-COD is twisted rather than chair-like. The compound has been investigated as a [[click chemistry]] mediator.<ref>{{cite journal | title = (E,E)-1,5-Cyclooctadiene: a small and fast click-chemistry multitalent | author1 = Henning Stöckmann | author2 = André A. Neves | author3 = Henry A. Day | author4 = Shaun Stairs | author5 = Kevin M. Brindle | author6 = Finian J. Leeper | journal = Chem. Commun. | year = 2011 | doi = 10.1039/C1CC12161H}}</ref>
+==References==
+{{Reflist|refs=
+<ref name="buehler">{{cite book | author1 = Buehler, C | author2 = Pearson, D. | title = Survey of Organic Syntheses | publisher = Wiley-Intersciene | location = New York | year = 1970}}</ref>
+<ref name="shriver">{{cite book | author1 = Shriver, D | author2 = Atkins, P. | title = Inorganic Chemistry | publisher = W. H. Freeman and Co. | location = New York | year = 1999}}</ref>
+<ref name="john">{{OrgSynth | collvol = 9 | collvolpages = 95 | year= 1998 | title = <nowiki>9-Borabicyclo[3.3.1]nonane Dimer</nowiki> | author = John A. Soderquist and Alvin Negron | prep = cv9p0095}}</ref>
+<ref name="bishop">{{OrgSynth | author = Roger Bishop | collvol = 9 | collvolpages = 692 | prep = CV9P0692| title = <nowiki>9-Thiabicyclo[3.3.1]nonane-2,6-dione</nowiki>}}{{cite journal | title = <nowiki>2,6-Dichloro-9-thiabicyclo[3.3.1]nonane:</nowiki> Multigram Display of Azide and Cyanide Components on a Versatile Scaffold | journal = [[Molecules (journal)|Molecules]] | year = 2006 | volume = 11 | pages = 212–218 | url = http://www.mdpi.org/molecules/papers/11040212.pdf | doi = 10.3390/11040212 | author = Díaz, David Díaz | last2 = Converso | first2 = Antonella | last3 = Sharpless | first3 = K. Barry | last4 = Finn | first4 = M. G. | issue = 4}}</ref>
+<ref name="ittel">{{cite journal | author = Schunn, R; Ittel, S. | title = Bis(1,5-Cyclooctadiene) Nickel(0) | journal = [[Inorg. Synth.]] | volume = 28 | year = 1990 | doi = 10.1002/9780470132593.ch25 | pages = 94 | series = Inorganic Syntheses | isbn = 978-0-470-13259-3}}</ref>
+<ref name="thomas">Thomas Schiffer, Georg Oenbrink “Cyclododecatriene, Cyclooctadiene, and 4-Vinylcyclohexene” in Ullmann’s Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim.</ref>
+<ref name="crascall">{{cite journal | author = Crascall, L; Spencer, J. | doi = 10.1002/9780470132593.ch34 | journal = [[Inorg. Synth.]] | year = 1990 | volume = 28 | title = Olefin Complexes of Platinum | pages = 126 | series = Inorganic Syntheses | isbn = 978-0-470-13259-3}}</ref>
+}}
+{{cycloalkenes}}
+{{DEFAULTSORT:Cyclooctadiene, 1,5-}}
+[[Category:Cycloalkenes]]
+[[Category:Cod complexes|*]]
+[[Category:Dienes]]

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