TETRAHYDROPHTHALIMIDE DERIVATIVE, PRODUCTION THEREOF, AND HERBICIDE COMPRISING SAME AS ACTIVE INGREDIENT

摘要

NEW MATERIAL:A tetrahydrophthalimide derivative shown by the formula (R is 1-5C alkyl, 3-5C alkenyl, or 3-5C alkynyl). EXAMPLE:N-(2-Fluoro-5-butoxy-4-nitrophenyl)-3,4,5,6-tetrahydrophthalim ide. USE:Useful as a herbicide. Showing effect on broad-leaved weeds such as wild buckwheat, etc., gramineous weeds such as barnyard grass, etc. by foliar treatment and soil treatment in plowed fields, and having no phytotoxicity to main crops such as soybeans, maize, etc. Exhibiting effects on gramineous weeds such as Echinochloa oryzicola Vasing, broad-leaved weeds such as false pimpernel, etc., in paddy fields, and having no phytotoxicity to rice plants. PREPARATION:N-(2-Fluoro-5-hydroxy-4-nitroiphenyl)-3,4,5,6-tetrahyd-rop hthalimi de is reacted with a halide shown by the formula R-X (X is Cl, Br, or I), to give a compound shown by the formula.