UREA DERIVATIVES, THEIR PRODUCTION AND USE

摘要

A urea derivative of the general formula, (wherein X is a halogen), which has higher insecticidal activity than known similar compounds, with lowered toxicity to mammals and fishes. The derivative can be produced by reacting 2-fluoro-4-haloaniline with 2,6-difluorobenzoyl isocyanate or reacting 2-fluoro-4-halo-phenylisocyanate with 2,6-difluorobenzamide.