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亚苄基苯乙酮是一种重要的工业原料 ,主要用于有机合成[1] 。长期以来 ,亚苄基苯乙酮是以苯甲醛和苯乙酮为原料、氢氧化钠作为碱 ,在水 -乙醇体系中缩合而成 ,产率通常只有 75% [2 ] 、84% [3,4 ] 。本研究以 PEG- 40 0作为相转移催化剂 ,在碱性的水 -乙醇体系中由苯乙酮与苯甲
Benzylidene acetophenone is an important industrial raw material, mainly used for organic synthesis [1]. For a long time, benzaldehyde and acetophenone as raw materials, sodium hydroxide as a base, in the water - ethanol condensation system, the yield is usually only 75% [2], 84% [3 , 4]. In this study, PEG-40 0 as a phase transfer catalyst in alkaline water - ethanol system from acetophenone and benzyl