发明名称 |
Process For Producing 2-(Phenyl Methyl Thio)-3-Pyridine Carboxylic Acid |
摘要 |
The invention discloses an improved process for producing an intermediate to produce large quantity of 2-(Phenyl methyl thio)-3-pyridine carboxylic acid. The process comprises reacting 2-chloro-3-cyanopyridine with benzyl mercaptan in presence of a base and an aprotic solvent. The resulting intermediate 2-(phenyl methyl thio)-3-cyanopyridine is hydrolyzed in presence of a base in an autoclave and isolated under acidic condition to get the desired product.
|
申请公布号 |
US2008139817(A1) |
申请公布日期 |
2008.06.12 |
申请号 |
US20040547407 |
申请日期 |
2004.06.17 |
申请人 |
SINGH SHAILENDRA KUMAR;AGARWAL ASHUTOSH |
发明人 |
SINGH SHAILENDRA KUMAR;AGARWAL ASHUTOSH |
分类号 |
C07D211/04;C07D213/02;C07D213/80;C07D213/85 |
主分类号 |
C07D211/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|