Invention Grant
US08993772B2 Process for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates
有权
制备4-氨基-5-氟-3-卤代-6-（取代）吡啶甲酸盐的方法
- Patent Title: Process for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates
- Patent Title (中): 制备4-氨基-5-氟-3-卤代-6-（取代）吡啶甲酸盐的方法
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Application No.: US14222912Application Date: 2014-03-24
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Publication No.: US08993772B2Publication Date: 2015-03-31
- Inventor: Yuanming Zhu , Gregory T. Whiteker , James M. Renga , Kim E. Arndt , Gary Roth , David E. Podhorez , Scott P. West , Yang Cheng
- Applicant: Dow AgroSciences LLC
- Applicant Address: US IN Indianapolis
- Assignee: Dow AgroSciences, LLC.
- Current Assignee: Dow AgroSciences, LLC.
- Current Assignee Address: US IN Indianapolis
- Agent Michael R. Asam
- Main IPC: C07D213/803
- IPC: C07D213/803 ; C07D213/81 ; C07D213/78 ; C07D213/79
Abstract:
4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinonitrile by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation, nitrile hydrolysis, esterification, and transition metal assisted coupling.
Public/Granted literature
- US20140206881A1 PROCESS FOR THE PREPARATION OF 4-AMINO-5-FLUORO-3-HALO-6-(SUBSTITUTED)PICOLINATES Public/Granted day:2014-07-24
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