Methacrolein → 1-Acetoxy-2-Methyl-3-(3,4-Methylenedioxyphenyl)Propene

Beteiligte Stoffe

Reaktionsschritte

The production process (B) comprises the steps of (3) reacting 1,2-methylenedioxybenzene, methacrolein and acetic anhydride with each other to produce 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene; and (2) subjecting the obtained 1-acetoxy-2-methyl-3-(3,4-methylenedioxyphenyl)-1-propene to hydrolysis reaction or to transesterification reaction with an alcohol, followed by subjecting the resulting reaction mixture to distillative purification, to thereby adjust a content of 1-acetyl-3,4-methylenedioxybenzene as a by-product in the 2-methyl-3-(3,4-methylenedioxyphenyl)propanal to from 50 to 3000 ppm.

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