Preparation of Arylmercapturic Acids by<i>S</i>-Arylation of<i>N</i>,<i>N</i>â²-Diacetylcystine
作者:Jan KrouzÌelka、Igor Linhart
DOI:10.1002/ejoc.200900982
日期:2009.12
A simple convenient method has been developed for the preparation of N-acetyl-S-arylcysteines based on the Chan–Lam–Evans arylation of N,N′-diacetylcystine dimethyl ester with arylboronic acids and used to synthesize a series of arylmercapturic acids. Unlike copper-mediated N-arylation, the S-arylation of neither cysteine nor cystine derivatives proceeded satisfactorily in the presence of air.(© Wiley-VCH
基于 N,N'-二乙酰半胱氨酸二甲酯与芳基硼酸的 Chan-Lam-Evans 芳基化,开发了一种简单方便的制备 N-乙酰基-S-芳基半胱氨酸的方法,并用于合成一系列芳基硫醇酸。与铜介导的 N-芳基化不同,半胱氨酸和胱氨酸衍生物的 S-芳基化在空气存在下都能令人满意地进行。(© Wiley-VCH Verlag GmbH & Co. KGaA,69451 Weinheim,德国,2009)