ONE-POT PROCESS FOR PRODUCING 1,2-BENZISOXAZOLE-3-METHANESULFONAMIDE

摘要

A process for producing 1,2-benzisoxazole-3-methanesulfonamide without isolation of intermediates in solid form, which comprises using 4-hydroxycoumarin as a starting compound, and water and 1,2-dichloroethane as solvents; and an industrially useful process for producing 1,2-benzisoxazole-3-acetic acid, which comprises reacting 4-hydroxycoumarin and hydroxylamine in water.