A Facile One-Pot Benzylation of Sodium Enolates Using Trifluoromethanesulfonic Anhydride and Diphenyl Sulfoxide
作者:Tomofumi Takuwa、Tomofumi Minowa、Hidehiko Fujisawa、Teruaki Mukaiyama
DOI:10.1248/cpb.53.476
日期:——
C-benzylation of various sodium enolates derived from methyl malonate, beta-ketoesters, a beta-cyanoester, a beta-cyanosulfone, ketones and a carboxylic ester is reported. Reaction of alkoxydiphenylsulfonium salts formed by treating various benzyl alcohols with diphenyl sulfide bis(trifluoromethanesulfonate) (derived from trifluoromethanesulfonic anhydride and diphenyl sulfoxide) proceeded smoothly, and
报道了衍生自丙二酸甲酯,β-酮酸酯,β-氰基酯,β-氰基砜,酮和羧酸酯的各种烯醇钠的简单的一锅C-苄基化。通过用二苯硫醚双(三氟甲磺酸盐)(衍生自三氟甲磺酸酐和二苯亚砜)处理各种苄醇而形成的烷氧基二苯s盐的反应进行得很顺利,并且以高至高收率获得了相应的C-苄基化产物。