| 摘要 |
PROBLEM TO BE SOLVED: To provide an industrial method for simply producing a 1-formyl-3-(3,4-methylenedioxyphenyl)propene derivative in good yield. SOLUTION: The method for producing the 1-formyl-3-(3,4-methylenedioxyphenyl)propene derivative represented by formula (2) (wherein, R denotes a hydrogen atom, a 1-4C alkyl group or a phenyl group) is carried out as follows. A base is reacted with piperonal and an aldehyde represented by formula (1) in a polar solvent at -10 to 30°C temperature. The compound contains stereoisomers. COPYRIGHT: (C)2004,JPO&NCIPI
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