前文我们曾先后报导了以聚氧乙烯类表面活性剂代替价昂有毒、制备困难的冠醚作为相转移催化剂在二氯卡宾的制备,醚类化合物的合成以及烷基取代环戊二烯的合成中的应用.在上述应用中均获得了很好的效果.表明聚氧乙烯类表面活性剂具有良好的相转移催化性能,是取代冠醚作为有机合成中相转移催化剂的较理想的替代物,有着很好的应用前景. 继Wittig反应之后,Horner-Emmons反应作为其改良方法在各类烯烃的合成中得到了广泛的应用.近年来,将相转移催化技术应用于该反应已有不少文献报导,但 We have previously reported the use of polyoxyethylene surfactants instead of expensive, difficult to prepare crown ether as a phase transfer catalyst in the preparation of dichlorocarbene, the synthesis of ethers and alkyl-substituted cyclopentadiene synthesis In the above applications have been very good results show that polyoxyethylene surfactants have good phase transfer catalysis performance is to replace the crown ether as a phase transfer catalyst in organic synthesis more ideal alternative, Has a good application prospects.After the Wittig reaction, Horner-Emmons reaction as a modified method has been widely used in the synthesis of various olefins.In recent years, the phase transfer catalysis technology has been applied to the reaction has been a lot of literature Reported, however