Process for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates
申请人:Whiteker Gregory T.
公开号:US08609855B2
公开(公告)日:2013-12-17
4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinates by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation and transition metal assisted coupling.
4-
氨基-5-
氟-3-卤代-6-(取代基)
吡啶酸盐可以通过一系列步骤从4,5,6-三
氯吡啶酸盐方便地制备,这些步骤涉及
氟交换、
氨基化、卤素交换、卤素化和过渡
金属辅助偶联。