View source for Propenyl

In [[organic chemistry]], '''1-propenyl''' (or simply '''propenyl''') has the formula CH=CHCH<sub>3</sub> and '''2-propenyl''' ('''isopropenyl''') has the formula CH<sub>2</sub>=C-CH<sub>3</sub>. These groups are found in many compounds. Propenyl compounds are [[Isomer | isomeric]] with [[allyl]] compounds, which have the formula CH<sub>2</sub>-CH=CH<sub>2</sub>.

[[Image:Monolignols general.svg|thumb|200px|The three common precursors to lignin are derivatives of propenylbenzene: [[paracoumaryl alcohol]] (1), [[coniferyl alcohol]] (2) and [[sinapyl alcohol]] (3).]]

==Chemicals with 1-propenyl groups==
*[[2-Chloropropylene|2-chloropropylene]]
*[[propenylbenzene]] (β-methylstyrene).<ref>{{cite journal|title=Preparation of Alkenes by Reaction of Lithium Dipropenylcuprates with Alkyl Halides: (E)-2-Undecene|first1=Gerard|last1=Linstrumelle|first2= Jeanne K.|last2=Krieger|first3=George M.|last3=Whitesides
|journal=Org. Synth.|year=1976|volume= 55|page=103|doi=10.15227/orgsyn.055.0103|url=http://www.orgsyn.org/Content/pdfs/procedures/v55p0103.pdf}}</ref>  
Many [[phenylpropanoid]]s and their derivatives feature derivatives of propenylbenzene:
*[[Anethole]]
*[[Asarone]]
*[[Carpacin]]
*[[Coniferyl alcohol]]
*[[Isoeugenol]]
*[[Isosafrole]]
*[[Methyl isoeugenol]]
*[[Pseudoisoeugenol]]

==Chemicals with 2-propenyl groups==
[[File:P-isopropenylphenol.svg|thumb|left|100px|[[P-Isopropenylphenol|''p''-Isopropenylphenol]] features a 2-propenyl derivative of [[phenol]].]]
[[Isopropenyl acetate]] is a 2-propenyl [[ester]], synthesizable from [[ketene]].  

Several [[terpene]]s feature 2-propenyl substituents:
*[[carvone]]
*[[limonene]]

==See also==
* [[Propene]]
* [[Functional group]]

==References==
<references />

{{organic-chem-stub}}{{Functional groups}}
[[Category:Alkenyl groups]]