Process for preparing 2-amino-5-bromobenzamide derivatives

摘要

Disclosed is a method for preparing a compound of Formula 2 comprising introducing (a) a gas containing bromine into (b) a liquid containing a compound of Formula 4
wherein Y is Br; R 1 is NHR 3 ; R 2 is CH 3 or Cl; and R 3 is H, C 1 -C 4 alkyl, cyclopropyl, cyclopropylcyclopropyl, cyclopropylmethyl or methylcyclopropyl.