Preparation of diazo and azo compounds using azidoformamidium salts
US4942225A · kind A · utility
5Cited by
3References
14Claims
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Key dates
| Filing date | Jun 20, 1988 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Jun 20, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B27/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Preparation of diazo compounds by transfer of diazo groups to activated methylene compounds, characterized in that an azidoformamidinium salt is used as the diazo group transferring agent, and also preparation of azo compounds by this route.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.