Method for preparing benzyl 4-amino-3-chloro-5-fluoro-6- (4-chloro-2-fluoro-3-methoxyphenyl) picolinate

摘要

From benzyl (II) 4,5-difluoro-6- (4-chloro-2-fluoro-3-methoxyphenyl) picolinate, 4-amino-3-chloro-5-fluoro-6- (4-chloro-2 A method for preparing benzyl (I) -fluoro-3-methoxyphenyl) picolinate is described. The method comprises using a step of an amination and chlorination process to produce a compound of Formula I. [Selection diagram] None