| 发明名称 |
METHOD FOR PRODUCING 2,3-DICHLORO-5-(TRICHLOROMETHYL)PYRIDINE |
| 摘要 |
The present invention relates to a novel process for producing of 2,3-dichloro-5-(trichloromethyl)pyridine by using PCl as chlorinating agent at elevated temperature and pressure. |
| 申请公布号 |
US2016145211(A1) |
申请公布日期 |
2016.05.26 |
| 申请号 |
US201414898416 |
申请日期 |
2014.06.13 |
| 申请人 |
CHEMINOVA A/S |
发明人 |
ANDERSEN Casper Stoubæk |
| 分类号 |
C07D213/61;C07D213/643;C07D213/74 |
主分类号 |
C07D213/61 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for preparing 2,3-dichloro-5-(trichloromethyl)pyridine of formula [II] by a process which comprises:
Reacting a compound of the general formula [I] with PCl5 as a chlorinating agent at elevated temperature and pressurewherein
X is COOH, CONH2, CCl3, or CN; and R1 represent H or Cl; wherein the intermediate compound 2-chloro-5-(trichloromethyl)pyridine may be formed in the course of the reaction. |
| 地址 |
Harboøre DK |
