发明名称 |
PROCESSES FOR THE PREPARATION OF 4-AMINO-3-HALO-6- (SUBSTITUTED)PICOLINATES AND 4-AMINO-5-FLUORO-3-HALO-6- (SUBSTITUTED)PICOLINATES |
摘要 |
<p>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. Provided herein are processes for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates and 4-amino-3-halo-6-(substituted)picolinates. More particularly, provided herein are processes for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates and 4-amino-3-halo-6- (substituted)picolinates from a non-pyridine source. These picolinates are useful as herbicides.</p> |
申请公布号 |
CA2894678(A1) |
申请公布日期 |
2014.06.19 |
申请号 |
CA20132894678 |
申请日期 |
2013.12.12 |
申请人 |
DOW AGROSCIENCES LLC |
发明人 |
JOHNSON, PETER LEE;RENGA, JAMES M.;GIAMPIETRO, NATALIE C.;WHITEKER, GREGORY T.;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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