Process for preparing 3-chlorobenzisothiazoles
US5883258A · kind A · utility
2Cited by
1References
11Claims
0Family size
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Key dates
| Filing date | Nov 10, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Nov 10, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D275/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-Unsubstituted 3-chlorobenzisothiazoles are obtained by reacting N-unsubstituted benzisothiazolones with phosgene in the presence of catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.