Catalytic processes employing chiral imidazolidinone-based catalyst composition
US6515137B2 · kind B2 · utility
2Cited by
4References
46Claims
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Key dates
| Filing date | Jul 30, 2001 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jul 30, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/44
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Acid addition salts of imidazolidinones are provided as catalysts for transforming a functional group within a first reactant by reaction with a second reactant. Exemplary first reactants are &agr;,&bgr;-unsaturated carbonyl compounds such as &agr;,&bgr;-unsaturated ketones and &agr;,&bgr;-unsaturated aldehydes. Chiral imidazolidinone salts can be used to catalyze enantioselective reactions, such that a chiral product is obtained from a chiral or achiral starting material in enantiomerically pure form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.