Preparation of 2,3-dichloro-5-trichloromethylpyridine
US4331811A · kind A · utility
9Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1981 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Mar 12, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/821
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Preparation of 2,3-dichloro-5-trichloromethylpyridine in high yields and purity by chlorinating 2-chloro-5-trichloromethylpyridine at 70.degree. to 250.degree. C. with chlorine in the presence of a catalyst containing one or more molybdenum, tungsten or ruthenium compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.