Process for the preparation of 1,2,4-triazole derivatives
US4006157A · kind A · utility
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Key dates
| Filing date | Jun 24, 1975 |
| Grant date | Feb 1, 1977 |
| Priority date | — |
| Expiry date | Jun 24, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D249/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Preparation of 1-isopropyl-3-hydroxy-5-chloro-1,2,4-triazole by reacting isopropylhydrazine hydrochloride with N-chlorocarbonylisocyanidedichloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.