Propenyl group

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.

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

Many phenylpropanoids and their derivatives feature derivatives of propenylbenzene:

Chemicals with 2-propenyl groups

p-Isopropenylphenol features a 2-propenyl derivative of phenol.

Isopropenyl acetate is a 2-propenyl ester, synthesizable from ketene.

Several terpenes feature 2-propenyl substituents:

See also

References

  1. ↑ Linstrumelle, Gerard; Krieger, Jeanne K.; Whitesides, George M. (1976). "Preparation of Alkenes by Reaction of Lithium Dipropenylcuprates with Alkyl Halides: (E)-2-Undecene" (PDF). Org. Synth. 55: 103. doi:10.15227/orgsyn.055.0103.