作者:L. Jensen、L. Dalgaard、S.-O. Lawesson
DOI:10.1016/s0040-4020(01)97111-x
日期:1974.1
By use of the ion pair extraction technique tetrabutylammonium salts of ethyl and methyl acetoacetate, ethyl benzoylacetate, and cyanoacetone were reacted with CS2 to give salts of dithioacids. Alkylation gave dithio-esters and ketene mercaptals. Rearrangements of allyl and crotyl ketene mercaptals of ethyl and methyl acetoacetate and ethyl benzoylacetate were studied. In the rearrangement of the dicrotyl
通过使用离子对萃取技术,使乙酰乙酸乙酯和乙酰乙酸甲酯的四丁基铵盐,苯甲酰乙酸乙酯和氰基丙酮与CS 2反应,得到二硫代酸盐。烷基化得到二硫酯和乙烯酮巯基。研究了乙酰乙酸乙酯和乙酰乙酸甲酯以及苯甲酰乙酸乙酯的烯丙基和巴豆基烯酮硫醇的重排。在乙酰乙酸甲酯的二烯丙基乙烯酮巯基的重排中,检测到中间体,该中间体支持二烯丙基乙烯酮巯基的四步硫代-克莱森重排机理,得到具有保留巴豆基的α-巴豆基二硫代酸酯。