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用廉价易得原料Mn(OAc)2-KMnO4体系代替昂贵的Mn(OAc)3催化二甲缩硫醚(1)与亚磷酸二乙酯反应获得结构新颖的2-亚磷酸二乙酯基缩硫醚化合物2a～2d.然后,化合物2a～2d与二胺类化合物3反应以较高产率合成了一系列2-亚磷酸二乙酯基杂环烯酮缩胺(4).
An inexpensive and readily available raw material Mn (OAc) 2-KMnO4 system was used instead of expensive Mn (OAc) 3 to catalyze the reaction of dimethylsulfide (1) with diethylphosphite to obtain a novel structure of diethyl 2-phosphite Thioether compounds 2a to 2d. Then, compounds 2a to 2d reacted with diamine compound 3 to synthesize a series of diethyl-2-phosphiteneheterocycloketenone (4) in higher yield.