Sulphonylated diphenylethylenediamines, method for their preparation and use in transfer hydrogenation catalysis
US8859815B2 · kind B2 · utility
2Cited by
8References
23Claims
0Family size
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Key dates
| Filing date | Dec 7, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Dec 10, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A diamine of formula (I) is described in which A is hydrogen or a saturated or unsaturated C1-C20 alkyl group or an aryl group; B is a substituted or unsubstituted C1-C20 alkyl, cycloalkyl, alkaryl, alkaryl or aryl group or an alkylamino group and at least one of X1, X2, Y1, Y2 or Z is a C1-C10 alkyl, cycloalkyl, alkaryl, aralkyl or alkoxy substituting group. The chiral diamine may be used to prepare catalysts suitable for use in transfer hydrogenation reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.