Reaction of Thioacids with Isocyanates and Isothiocyanates: A Convenient Amide Ligation Process
作者:David Crich、Kaname Sasaki
DOI:10.1021/ol901370y
日期:2009.8.6
Thiocarboxylates, prepared conveniently by cleavage of 9-fluorenylmethyl or trimethoxybenzyl thioesters, react at room temperature with isocyanates and isothiocyanates to give amide bonds in good to excellent yield. A carboxylate salt is also shown to react with an electron-deficient isocyanate to give the corresponding amide in excellent yield at room temperature.
硫代
羧酸酯可通过裂解 9-
芴甲基或
三甲氧基苄基
硫酯方便地制备,在室温下与
异氰酸酯和异
硫氰酸酯反应生成酰胺键,产率良好至极好。还显示
羧酸盐与缺电子
异氰酸酯反应以在室温下以优异的产率得到相应的酰胺。