A procedure for preparing a New composiciun procedure for Preparing new Derivatives of N - phenyl maleimide. On micro bicida.

摘要

1,238,123. N-phenyl-maleimides. SUMITOMO CHEMICAL CO. Ltd. 26 Sept., 1969 [9 Oct., 1968], No. 47493/69. Heading C2C. [Also in Division A5] Novel compounds of formula wherein R 1 is a hydrogen or halogen atom or a C 1-4 alkyl, phenyl or halophenyl group, R 2 is a hydrogen or halogen atom or a C 1-4 alkyl group, and X is a halogen atom, provided that when R 1 and R 2 are both halogen atoms, X is not chlorine, are prepared by cyclodehydration of a compound of formula The compounds of the invention have microbiocidal activity (see Division A5).