申请人:BASF Wyandotte Corporation
公开号:US04147716A1
公开(公告)日:1979-04-03
A method of preparing an N-substituted carbamate comprising reacting by heating in sulfolane at a temperature ranging from about 65.degree. C. to about 100.degree. C. (1) an alkali metal cyanate, (2) at least one sulfolane-soluble organic halide of the formula RX wherein X is halogen and R represents a radical selected from the group consisting of alkyl, alkenyl, aralkyl and aralkenyl, and (3) at least one sulfolane-soluble non-aromatic monohydric or polyhydric alcohol, and isolating the N-substituted carbamate thereby produced from the resulting reaction mass.
一种制备N-取代氨基甲酸酯的方法,包括在苏烷中加热反应,温度范围从约65℃到约100℃,(1)使用一种碱金属氰酸盐,(2)至少一种苏烷可溶性有机卤代烃,其化学式为RX,其中X是卤素,R代表从烷基,烯基,芳基烷基和芳基烯基等基团中选择的基团,(3)至少一种苏烷可溶性非芳香单元或多元醇,然后从反应混合物中分离所产生的N-取代氨基甲酸酯。