Preparation of 2-(Alkylseleno)benzothiazoles. Direct Incorporation of the Alkyl Group of Alcohols into Benzothiazolylseleno Residue
作者:Koichi Shibata、Oyo Mitsunobu
DOI:10.1246/cl.1993.549
日期:1993.3
Reaction of alcohols with 2-(1,2-diphenyl-2-oxoethylseleno)benzothiazole in the presence of tributylphosphine gave the corresponding 2-alkylselenobenzothiazoles, where inversion of the secondary carbinol center of the alcohols took place. 1,3-Butanediol reacted at the primary hydroxyl group, while 1-phenyl-1,2-ethanediol reacted at the secondary hydroxyl group.
在三丁基膦存在下,醇与2-(1,2-二苯基-2-氧乙硒基)苯并噻唑反应,生成相应的2-烷基硒基苯并噻唑,其中醇的二级羟甲基中心发生了构型反转。1,3-丁二醇在伯羟基处反应,而1-苯基-1,2-乙二醇在仲羟基处反应。