Process for the production of N,N-carbonyl diimidazole
US6455702B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Oct 24, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Oct 24, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/54
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A high purity N,N-Carbonyl diimidazole (I) is obtained by the reaction of Imidazole, general formula-II, and bis (trichloromethyl) carbonate. Synthesis of N,N-Carbonyl diimidazole (I) is described:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.