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。