发明名称 |
PROCESS FOR THE PREPARATION OF 4-AMINO-5-FLUORO-3-CHLORO-6-(SUBSTITUTED)PICOLINATES |
摘要 |
<p>4-Amino-5-fIuoro-3 -chloro-6-( substituted)picolinates are prepared from trifluoroacetic acid, p-methoxyaniline, a 3,3-dialkoxyprop-1-yne and a substituted methylene amine by a series of steps. In particular, provided herein are processes for the preparation of 4-amino-5-fluoro-3-chloro-6-(substituted)picolinates from a non-pyridine source without a metal assisted coupling and without fluorination with an expensive fluorinating agent. These picolinates are useful as herbicides.</p> |
申请公布号 |
CA2895180(A1) |
申请公布日期 |
2014.06.19 |
申请号 |
CA20132895180 |
申请日期 |
2013.12.12 |
申请人 |
DOW AGROSCIENCES LLC |
发明人 |
RENGA, JAMES M.;WHITEKER, GREGORY T.;JOHNSON, PETER LEE;GALLIFORD, CHRISTOPHER |
分类号 |
A01N43/40 |
主分类号 |
A01N43/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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