Thia-Michael Addition Using Cheap and Odorless <i>S</i>-Alkylisothiouronium Salts as Thiol Equivalents in Water
作者:Ze-Mei Ge、Run-Tao Li、Yan Zhao、Tie-Ming Cheng
DOI:10.1055/s-2007-982530
日期:2007.6
S-Alkylisothiouronium salt has been found to be a nontoxic, odorless and simply operational alternative of thiol for the thia-Michael addition with electron-deficient olefins. The reactions were carried out under alkaline conditions in water at room temperature within 5-20 minutes to afford the expected products in good to excellent yields.
S-烷基异硫脲盐被发现是一种无毒、无气味且操作简便的硫醇替代品,可用于与电子缺乏烯烃的硫醇-迈克尔加成反应。反应在室温下的水相碱性条件下进行,时间为5至20分钟,能够以良好到优秀的产率得到预期产品。