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首次采用相转移催化剂聚乙二醇（ＰＥＧ４００、ＰＥＧ６００）催化法，合成α甲基肉桂醛新方法，结果表明：ＰＥＧ４００ 的催化效果较好，产率达８６８１％ ，比不用催化剂提高近２０％ 。
For the first time, a new method of synthesizing α-methylcinnamic aldehyde by PEG400 and PEG600 was proposed. The results showed that the catalytic effect of PEG400 was better, the yield was 8681%, which was higher than that without catalyst Nearly 20%.