Preparation of 2,3-dichloro-5-trichloromethylpyridine
US4636565A · kind A · utility
2Cited by
1References
6Claims
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Key dates
| Filing date | Mar 13, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Mar 13, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/132
- WIPO fieldChemical engineering
- 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.