Method of transforming pyrazole compounds
US5723623A · kind A · utility
1Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Oct 18, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides a method of transforming a pyrazole compound, comprising cyclizing a 1,5-diaminopyrazole compound having the structure: ##STR1## wherein R.sup.1 is a substituent group; and X is hydrogen, an acyl group, or a heterogroup; in an alkaline solution with carbon disulphide to produce a pyrazolotriazole thione compound having formula (3). ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.