| 发明名称 |
Process for the preparation of 4,5,6-trichloropicolinic acid |
| 摘要 |
4,5,6-Trichloropicolinic acid is prepared by selectively dechlorinating 3,4,5,6-tetrachloropicolinic acid with zinc and a catalyst prepared from a nickel compound and a bidentate ligand in a polar solvent. |
| 申请公布号 |
US9440923(B2) |
申请公布日期 |
2016.09.13 |
| 申请号 |
US201514818389 |
申请日期 |
2015.08.05 |
| 申请人 |
Dow AgroSciences LLC |
发明人 |
Grandbois Matthew L.;Laitar David S.;Renga James M.;Whiteker Gregory T. |
| 分类号 |
C07D213/79;C07D213/803;B01J31/18 |
主分类号 |
C07D213/79 |
| 代理机构 |
|
代理人 |
Asam Michael R. |
| 主权项 |
1. A process for the preparation of 4,5,6-trichloropicolinic acid (Formula I)which comprises, selectively dechlorinating 3,4,5,6-tetrachloropicolinic acid (Formula II)with zinc and a catalyst prepared from a nickel compound and a bidentate ligand in a polar solvent. |
| 地址 |
Indianapolis IN US |
