CATALYTIC ASYMMETRIC HYDROGENATION OF ACTIVATED KETO COMPOUNDS BY SOME HOMOGENEOUS AND SILICA-SUPPORTED ARBOXYLATO)BIS(AMINOPHOSPHINEPHOSPHINITE)DIRHODIUM COMPLEXES

Citation
Jf. Carpentier et al., CATALYTIC ASYMMETRIC HYDROGENATION OF ACTIVATED KETO COMPOUNDS BY SOME HOMOGENEOUS AND SILICA-SUPPORTED ARBOXYLATO)BIS(AMINOPHOSPHINEPHOSPHINITE)DIRHODIUM COMPLEXES, Tetrahedron : asymmetry, 6(1), 1995, pp. 39-42
Citations number
16
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
ISSN journal
09574166
Volume
6
Issue
1
Year of publication
1995
Pages
39 - 42
Database
ISI
SICI code
0957-4166(1995)6:1<39:CAHOAK>2.0.ZU;2-C
Abstract
New soluble and silica-supported rhodium complexes have been synthesiz ed and tested as catalyst precursors for the enantioselective hydrogen ation of alpha-ketoesters and an alpha-ketoamide. The homogeneous cata lysts have been found to be efficient in terms of activity and asymmet ric induction (up to 94% enantiomeric excess), On the other hand, the heterogenized systems exhibited lower performances and were gradually deactivated.