3-(3,4-Methylenedioxyphenyl)-2-methylpropanal → Acetopiperone

Participants

Reaction Steps

In the step (2), 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene represented by the following formula (3) which has been obtained in the step (1) is subjected to hydrolysis reaction or to transesterification reaction with an alcohol to obtain a crude product of 1-acetyl-3,4-methylenedioxybenzene represented by the following formula (4) and 2-methyl-3-(3,4-methylenedioxyphenyl)propanal represented by the following formula (5), and then the resulting reaction mixture is further subjected to distillative purification, to thereby obtain 2-methyl-3-(3,4-methylenedioxyphenyl)propanal having a content of 1-acetyl-3,4-methylenedioxybenzene of from 50 to 3000 ppm.

Provenance & Evidence