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Cyclododecatrienes are cyclic trienes with the formula C 12 H 18.Four isomers are known for 1,5,9-cyclododecatriene. The trans,trans,cis-isomer is a precursor in the production of nylon-12.
Cyclodecene is a cycloalkene with a ten-membered ring, with two possible geometric isomers, denoted cis-cyclodecene and trans-cyclodecene, or (Z)-cyclodecene and (E)-cyclodecene. References [ edit ]
Decene / d ɛ k iː n / is an organic compound with the chemical formula C 10 H 20. Decene contains a chain of ten carbon atoms with one double bond, making it an alkene. There are many isomers of decene depending on the position and geometry of the double bond. Dec-1-ene is the only isomer of industrial importance.
The structure is conformationally frozen. It does not have the ability to undergo a chair flip as in the cis isomer. In biology this fixation is widely used in the steroid skeleton to construct molecules (such as figure 6) that play a key role in the signalling between distantly separated cells.
The all-cis isomer , a fully convex decagon, would have bond angles of 144°, which creates large amounts of angle strain relative to the ideal 120° in sp 2 atomic hybridization. Instead, the all- cis isomer adopts a planar boat-like conformation ( 2 ) to relieve the angle strain, [ 5 ] although it, too, is less stable than the next planar ...
(Similar procedures can give cis,trans isomers of 1,4-cyclooctadiene and 1,5-cyclooctadiene). [2] In addition, a photochemical method exists for the direct cis–trans isomerisation. Although this equilibrium strongly favours the more stable cis form, the reaction can be driven towards the trans form by trapping with silver ions. [11] [12]
5-Decyne, also known as dibutylethyne, is a type of alkyne with a triple bond at its fifth carbon (the '5-' indicates the location of the triple bond in the chain). Its formula is C 10 H 18 . Its density at 25 °C and otherwise standard conditions is 0.766 g/ml. [ 1 ] The boiling point is 177 °C. [ 2 ]
Toggle the table of contents. ... data are given for materials in their standard state ... and cis-5-norbornene-endo-2,3-dicarboxylic anhydride ...