申请人:NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
公开号:US20190185420A1
公开(公告)日:2019-06-20
A method of production of carbamic acid ester has a high yield and high selectivity and is superior in economy. The method of production of a carbamic acid ester includes reacting an amine, carbon dioxide, and an alkoxysilane compound in the presence of a catalyst containing a zinc compound or an alkali metal compound or in the presence of an ionic liquid. A carbamic acid ester is produced, for example by reacting aniline, carbon dioxide, and tetramethoxysilane at a temperature of 150 to 180° C. in the presence of zinc acetate and 2,2′-bipyridine.
一种生产氨基甲酸酯的方法具有高产率和高选择性,并在经济上优越。生产氨基甲酸酯的方法包括在催化剂的存在下,将胺、二氧化碳和烷氧基硅烷化合物反应,所述催化剂含有锌化合物或碱金属化合物或存在于离子液体中。例如,通过在150至180°C的温度下,在锌醋酸和2,2'-联吡啶的存在下,将苯胺、二氧化碳和四甲氧基硅烷反应,可以生产氨基甲酸酯。