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Titolo:
Enantio-differentiating hydrogenation of methyl acetoacetate over tartaricacid-NaBr-modified supported nickel catalyst prepared from nickel acetylacetonate
Autore:
Osawa, T; Mita, S; Iwai, A; Takayasu, O; Hashiba, H; Hashimoto, S; Harada, T; Matsuura, I;
Indirizzi:
Toyama Univ, Fac Sci, Toyama 9308555, Japan Toyama Univ Toyama Japan 9308555 ma Univ, Fac Sci, Toyama 9308555, Japan Nippon Shokubai, Catalyst Res Lab, Himeji, Hyogo 6711241, Japan Nippon Shokubai Himeji Hyogo Japan 6711241 , Himeji, Hyogo 6711241, Japan Ryukoku Univ, Fac Sci & Technol, Otsu, Shiga 5202194, Japan Ryukoku Univ Otsu Shiga Japan 5202194 Technol, Otsu, Shiga 5202194, Japan
Titolo Testata:
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
fascicolo: 1-2, volume: 157, anno: 2000,
pagine: 207 - 216
SICI:
1381-1169(20000620)157:1-2<207:EHOMAO>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
MODIFIED RANEY-NICKEL; C=O DOUBLE-BOND; ENANTIOSELECTIVE HYDROGENATION; ASYMMETRIC HYDROGENATION; NI-SIO2 CATALYSTS; PROCHIRAL KETONES; MRNI CATALYST; PROGRESS; POWDER; MODE;
Keywords:
nickel acetylacetonate; modified supported nickel catalyst; enantio-differentiating; hydrogenation; methyl acetoacetate;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Osawa, T Toyama Univ, Fac Sci, Toyama 9308555, Japan Toyama Univ Toyama Japan 9308555 Fac Sci, Toyama 9308555, Japan
Citazione:
T. Osawa et al., "Enantio-differentiating hydrogenation of methyl acetoacetate over tartaricacid-NaBr-modified supported nickel catalyst prepared from nickel acetylacetonate", J MOL CAT A, 157(1-2), 2000, pp. 207-216

Abstract

Supported nickel catalysts were prepared from nickel acetylacetonate, and then modified in a solution containing tartaric acid and sodium bromide. The enantio-differentiating hydrogenation of methyl acetoacetate was carried out over this catalyst. The effects of the preparation variables of the supported nickel catalysts on the optical yield and the effects of the conditions for the nickel surface modification on the optical yield were examined. The catalysts were also characterized by XRD and TEM. The maximal optical yield of 87% was attained when crystallized alpha-alumina (sumico rundum) was used as a support. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 20:23:39