Sulphonylated diphenylethylenediamines, method for their preparation and use in transfer hydrogenation catalysis
US7601867B2 · kind B2 · utility
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Key dates
| Filing date | Nov 1, 2005 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Nov 1, 2025 |
Classification
- Technology area (CPC —)General
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.
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