In organic chemistry, 1-propenyl (or simply propenyl) has the formula ·CH=CH–CH3 and 2-propenyl (isopropenyl) has the formula CH2=(C·)–CH3. These groups are found in many compounds. Propenyl compounds are isomeric with allyl compounds, which have the formula ·CH2–CH=CH2.
Chemicals with 1-propenyl groups 2-chloropropylene propenylbenzene (β-methylstyrene). Many phenylpropanoids and their derivatives feature derivatives of propenylbenzene:
Anethole Asarone Carpacin Coniferyl alcohol Isoeugenol Isosafrole Methyl isoeugenol Pseudoisoeugenol
Chemicals with 2-propenyl groups
Isopropenyl acetate is a 2-propenyl ester, synthesizable from ketene. Several terpenes feature 2-propenyl substituents:
carvone limonene
See also Propene Functional group
References