Patent ID: 6492517
Filing Date: 2002-12-10
Classification: C07D

Abstract:
A method for preparing 5- and 6-halomethyl quinoxalines (I) which comprises contacting a 5- or 6-methyl quinoxaline (II) with a halogenating agent in the presence of a radical initiator in a solvent selected from the group consisting of fluorobenzene, difluorobenzenes, trifluorobenzenes, chlorobenzene, dichlorobenzenes, trichloro-benzenes, &agr;, &agr;, &agr;-trifluorotoluene and &agr;, &agr;, &agr;-trichlorotoluene, to form the respective 5-or 6-halomethyl quinoxaline (I), wherein X is a halogen.