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Titolo:
Optically active beta-ketoiminato cobalt(II) complexes as highly efficientcatalysts in enantioselective borohydride reduction of ketones, imines, and alpha,beta-unsaturated carboxylates
Autore:
Yamada, T; Nagata, T; Ikeno, T; Ohtsuka, Y; Sagara, A; Mukaiyama, T;
Indirizzi:
Keio Univ, Fac Sci & Technol, Dept Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan Keio Univ Yokohama Kanagawa Japan 2238522 kohama, Kanagawa 2238522, Japan Mitsui Chem Inc, Performance Mat R&D Ctr, Sakae Ku, Yokohama, Kanagawa 2478567, Japan Mitsui Chem Inc Yokohama Kanagawa Japan 2478567 , Kanagawa 2478567, Japan Sci Univ Tokyo, Fac Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, JapanSci Univ Tokyo Tokyo Japan 1628601 em, Shinjuku Ku, Tokyo 1628601, Japan
Titolo Testata:
INORGANICA CHIMICA ACTA
fascicolo: 1, volume: 296, anno: 1999,
pagine: 86 - 93
SICI:
0020-1693(199912)296:1<86:OABCCA>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEMICORRIN METAL-COMPLEXES; MANGANESE(III) COMPLEXES; AEROBIC EPOXIDATION; DIAZO-COMPOUNDS; SIMPLE OLEFINS; HYDROGENATION; CARBOXAMIDES; LIGANDS; ALPHA;
Keywords:
catalysts; cobalt complexes; enantioselective reduction; sodium borohydride; crystal structures;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Yamada, T Keio Univ, Fac Sci & Technol, Dept Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan Keio Univ Yokohama Kanagawa Japan 2238522 nagawa 2238522, Japan
Citazione:
T. Yamada et al., "Optically active beta-ketoiminato cobalt(II) complexes as highly efficientcatalysts in enantioselective borohydride reduction of ketones, imines, and alpha,beta-unsaturated carboxylates", INORG CHIM, 296(1), 1999, pp. 86-93

Abstract

A new class of cobalt complexes with optically active N,N'-ethylenebisketoiminato ligands was synthesized, and one of them was fully characterized byX-ray crystallographic analysis. These cobalt(I) complexes proved to be efficient catalysts in enantioselective borohydride reduction of aryl ketones, phosphinyl imines, and beta,beta-disubstituted alpha,beta-unsaturated carboxylates. It was found that the enantiofacial discrimination in the borohydride reduction was influenced by the structure of the diphenylethylenediamine moiety of the cobalt complex catalysts. (C) 1999 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 12:40:23