Process for the preparation of 1-substituted-5(4H)-tetrazolinones
US5502204A · kind A · utility
5Cited by
4References
4Claims
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Key dates
| Filing date | Sep 7, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Sep 7, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D405/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of a 1-substituted-5(4H)-tetrazolinone of the formula ##STR1## wherein R.sub.1 is defined in the specification n is 0, 1, 2, 3 or 4, which comprises reacting a 1-substituted-5(4H)-tetrazolinethione of the formula ##STR2## with an ethylene oxide of the formula ##STR3## wherein R.sup.2 represents hydrogen, methyl or ethyl, in the presence of a base and in the presence of water, an alcohol or a mixture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.