N-[(4-ETHOXY-6-(METHYLAMINO)-1,3,5-TRIZAIN-2-YL)- AMINOCARBONYL]-3,4-DIHYDROL-1-OXO-1H-2- BENZOPYRAN-8 SULFONAMIDE

摘要

Title N-¢(4-ETHOXY-6-(METHYLAMINO) 1,3,5-TRIZAIN-2-YL)- AMINOCARBONYL!-3,4-DIHYDROL-1-OXO-1H-2- BENZOPYRAN-8 SULfONAMIDE Herbicidal 3,4 dihydro-3-methyl-1-oxo-1H-2-benzopyran-8-sulfonamides of the following formula, are disclosed as being selective on rape A compound of the formula wherein R1 is H or CH3; and R2 is H, F, Cl or CH3.