苯乙烯合成肉桂酸

以氯化亚铜和二乙胺作催化剂，四氯化碳与苯乙烯发生加成反应，生成１，３，３，３－四氯丙基苯（Ⅰ），收率为７９％，中间体（Ⅰ）于硫酸锌－醋酸体系中水解７．５ｈ，生成肉桂酸（Ⅱ），收率为９０％，在对甲基苯磺酸、硫酸、醋酸体系中水解１５ｈ，收率为９２％。

SYNTHESIS OF CINNAMIC ACID FROM STYRENE

Cinnamic acid was synthesized in 2 steps: (1) synthesis of an intermediate 1,3,3,3-tetrachloropropyl benzene from CCl_4 and styrene in the presence of CuCl and diethylamine as catalysts, the yield 79% and (2) hydrolysis of the intermediate into cinnamic acid in the presence of zinc sulfonate and HOAc as catalysts within 7.5 h. The recovery was 90%, and the yield was 92% of hydrolysis in p-toluenesulfonic acid, sulfuric acid and aldehyde within 15 h.