ASYMMETRIC HYDROGENATION OF α-OXOCARBONYL COMPOUNDS CATALYZED BY BIS(DIMETHYLGLYOXIMATO)COBALT(II)-CHIRAL AMINE COMPLEX
- 5 July 1974
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 3 (7) , 709-712
- https://doi.org/10.1246/cl.1974.709
Abstract
Bis(dimethylglyoximato)cobalt(II)-quinine-catalyzed asymmetric hydrogenation of α-diketones afforded optically active reduction products, while that of α-oxocarboxylates and diacetyl gave not only simple reduction products but also reductive dimerization products with optical activity. In general, the optical yields of simple reduction products in cases of α-diketones (56–73%) were higher than those in cases of α-oxocarboxylates (12–20%).Keywords
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