Transformation of Terminal Diols of Cyclic and Acyclic Saccharides to Epoxides and Alkenes by Reaction with Triphenylphosphine, Imidazole and Iodine
作者:Hari Babu Mereyala、P. Mallikarjun Goud、Rajendrakumar Reddy Gadikota、K. Ramasubba Reddy
DOI:10.1080/07328300008544145
日期:2000.1.1
ABSTRACT Reaction of various terminal diols 1,4,6,8-12, derived from cyclic and acyclic monosaccharides, with 2 mol equivalents each of TPP-imidazole-I2 between -8 °C and 15 °C in THF afforded the corresponding epoxides 2,5,7,13-17, respectively, with 4 mol equivalents each of TPP-imidazole-I2 in toluene at reflux temperature the starting diols afforded the corresponding alkenes 3,18-24, respectively
衍生自环状和无环单糖的各种末端二醇1,4,6,8-12在-8°C至15°C之间在THF中与2个摩尔当量的TPP-咪唑-I2反应,得到相应的环氧化物2分别在甲苯中,分别在5、7、13、17、5、7、13-17中将TPP-咪唑-I 2在甲苯中在回流温度下反应,起始二醇分别得到相应的烯烃3,18-24。