Process for the preparation of 1,2,4-triazole
US4390704A · kind A · utility
2Cited by
1References
8Claims
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Assignee
Inventor
Key dates
| Filing date | Jul 7, 1981 |
| Grant date | Jun 28, 1983 |
| Priority date | — |
| Expiry date | Jul 7, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D249/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Preparation of 1,2,4-triazole by reacting formamide and hydrazine in a molar ratio of 2:1 to 2.2:1, hydrazine or its hydrate being metered into excess formamide, preheated to 160.degree.-200.degree., while maintaining the temperature, and then completing the reaction at 160.degree.-240.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.