or Michael acceptors, thioacetates were prepared in situ and further treated with t-BuOCl, affording the corresponding sulfonyl chlorides which were trapped with nucleophiles such as water, alcohol, or amines. The three steps can be achieved in a one-pot procedure. Oxidative deprotection also proved to be efficient with S-trityl and S-tert-butyl groups, making it a convenient route toward cysteic acid
从卤代烷或迈克尔受体开始,原位制备
硫代乙酸酯,并进一步用叔丁基OCl处理,得到相应的
磺酰氯,其被亲核试剂如
水,醇或胺捕获。这三个步骤可以通过一锅法完成。进行氧化脱保护也被证明是有效的与小号三苯和小号-叔丁基团,使其成为朝向半胱
磺酸衍
生物一个方便的途径。