Facile S-alkyl thiocarbamate synthesis by a novel DBU-assisted carbonylation of amines with carbon monoxide and sulfur
作者:Takumi Mizuno、Junko Takahashi、Akiya Ogawa
DOI:10.1016/s0040-4020(03)00031-0
日期:2003.2
A novel DBU-assisted carbonylation of amines with carbon monoxide and sulfur has been developed for the synthesis of S-alkyl thiocarbamates. In the presence of DBU (1,8-diazabicyclo[5.4.0]undec-7-ene), S-alkyl thiocarbamates are synthesized in excellent yields from amines, carbon monoxide, sulfur, and alkyl halides under mild conditions (1 atm, 20°C). In the absence of DBU, however, no formation of
已经开发了一种新颖的DBU辅助的胺与一氧化碳和硫的羰基化反应,以合成硫代氨基甲酸酯的S-烷基。在DBU(1,8-二氮杂双环[5.4.0]十一碳-7-烯)的存在下,š -烷基硫代氨基甲酸盐在选自胺,一氧化碳,硫,和烷基卤化物在温和条件下高收率合成(1个大气压, 20°C)。然而,在不存在DBU的情况下,未观察到S-烷基硫代氨基甲酸酯的形成。本DBU辅助的羰基化反应还可用于苯硫威和邻苯甲酸(除草剂)和氨基甲酰氯的新合成方法。