Method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate
申请人:Dow AgroSciences LLC
公开号:US10407391B2
公开(公告)日:2019-09-10
A method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate (I) from benzyl 4,5-difluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate (II) is described. The method includes the use of amination and chlorination process steps to provide the compound of Formula I.
本发明描述了一种从 4,5-二氟-6-(4-氯-2-氟-3-甲氧基苯基)吡啶甲酸苄酯(II)制备 4-氨基-3-氯-5-氟-6-(4-氯-2-氟-3-甲氧基苯基)吡啶甲酸苄酯(I)的方法。 该方法包括使用胺化和氯化工艺步骤来提供式 I 的化合物。
METHOD OF PREPARING BENZY 4-AMINO-3-CHLORO-5-FLUORO-6-(4-CHLORO-2-FLUORO-3-METHOXYPHENYL)PICOLINATE
申请人:Dow AgroSciences LLC
公开号:EP3555049A1
公开(公告)日:2019-10-23
[EN] METHOD OF PREPARING BENZY 4-AMINO-3-CHLORO-5-FLUORO-6-(4-CHLORO-2-FLUORO-3-METHOXYPHENYL)PICOLINATE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE BENZY 4-AMINO-3-CHLORO-5-FLUORO-6-(4-CHLORO-2-FLUORO-3-MÉTHOXYPHÉNYL)PICOLINATE
申请人:DOW AGROSCIENCES LLC
公开号:WO2018111639A1
公开(公告)日:2018-06-21
A method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate (I) from benzyl 4,5-difluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate (II) is described. The method includes the use of amination and chlorination process steps to provide the compound of Formula I.