申请人:Bayer Aktiengesellschaft
公开号:US04482737A1
公开(公告)日:1984-11-13
N-substituted N-isocyanatocarbonyl-carbamates, some of which are new, of the general formula ##STR1## are prepared by reacting an N-substituted carbamic acid ester of the general formula R--NH--COOR.sup.1 (II) with chlorocarbonyl isocyanate of the formula Cl--CO--NCO (III) in a diluent, at a temperature between 50.degree. and 200.degree. C. The compounds (I) can be used as intermediate products for the preparation of new pest-combating agents.
通式为##STR1##的N-取代N-异氰酸酯基氨基甲酸酯,其中一些是新的,通过在稀释剂中在50℃至200℃的温度下,将通式为R--NH--COOR.sup.1(II)的N-取代氨基甲酸酯与通式为Cl--CO--NCO(III)的氯代异氰酸酯反应制备而成。这些化合物(I)可以作为新的杀虫剂中间体。