Process for the preparation of chalcogene compounds
US9751841B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Mar 30, 2010 |
| Grant date | Sep 5, 2017 |
| Priority date | — |
| Expiry date | Oct 12, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is a novel process for the preparation of chalcogenone compounds by conversion of ionic liquids and salts comprising nitrogen-containing heterocyclic cations and basic anions to the corresponding nitrogen-containing heterocyclic chalcogenones by reaction with elemental chalcogens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.