Preparation of benzoylureas

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 241/00 (2006.01) A01N 47/34 (2006.01) A01N 47/36 (2006.01) C07C 275/54 (2006.01) C07D 213/61 (2006.01) C07D 241/20 (2006.01) C07D 241/24 (2006.01) C07D 241/26 (2006.01)

Patent

CA 1103251

Abstract of the Disclosure A novel process for preparing benzoylureas is described herein. The process involves forming a ureido bridge between a benzamide and an amine using an alkyl- lithium and a phenyl chloroformate as other reagents. The benzoylureas obtained by this process are useful as insecticides.

308083

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