发明申请
US20140171654A1 PROCESSES FOR THE PREPARATION OF 4-AMINO-3-HALO-6-(SUBSTITUTED)PICOLINATES AND 4-AMINO-5-FLUORO-3-HALO-6-(SUBSTITUTED)PICOLINATES
有权
制备4-氨基-3-羟基-6-(取代的)吡啶甲酸酯和4-氨基-5-氟-3-羟基-6-(取代的)吡啶甲酸酯的方法
- 专利标题: PROCESSES FOR THE PREPARATION OF 4-AMINO-3-HALO-6-(SUBSTITUTED)PICOLINATES AND 4-AMINO-5-FLUORO-3-HALO-6-(SUBSTITUTED)PICOLINATES
- 专利标题(中): 制备4-氨基-3-羟基-6-(取代的)吡啶甲酸酯和4-氨基-5-氟-3-羟基-6-(取代的)吡啶甲酸酯的方法
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申请号: US14104236申请日: 2013-12-12
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公开(公告)号: US20140171654A1公开(公告)日: 2014-06-19
- 发明人: Peter L. Johnson , James M. Renga , Natalie C. Giampietro , Gregory T. Whiteker , Christopher Galliford
- 申请人: Peter L. Johnson , James M. Renga , Natalie C. Giampietro , Gregory T. Whiteker , Christopher Galliford
- 申请人地址: US IN Indianapolis
- 专利权人: DOW AGROSCIENCES LLC
- 当前专利权人: DOW AGROSCIENCES LLC
- 当前专利权人地址: US IN Indianapolis
- 主分类号: C07D213/74
- IPC分类号: C07D213/74 ; C07D213/73 ; C07C251/08
摘要:
4-Amino-3-chloro-6-(substituted)picolinates are prepared from difluoroacetic acid or trifluoroacetic acid, tritylamine or t-butylamine as a protecting group, a 3,3-dialkoxyprop-1-yne and a substituted methylene amine by a series of steps.
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