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Titolo:
Versatile precursor to ruthenium-bis(phosphine) hydrogenation catalysts
Autore:
Akotsi, OM; Metera, K; Reid, RD; McDonald, R; Bergens, SH;
Indirizzi:
Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada Univ Alberta Edmonton AB Canada T6G 2G2 hem, Edmonton, AB T6G 2G2, Canada Univ Alberta, Dept Chem, Xray Crystallog Lab, Edmonton, AB T6G 2G2, CanadaUniv Alberta Edmonton AB Canada T6G 2G2 Lab, Edmonton, AB T6G 2G2, Canada
Titolo Testata:
CHIRALITY
fascicolo: 5-6, volume: 12, anno: 2000,
pagine: 514 - 522
SICI:
0899-0042(2000)12:5-6<514:VPTRHC>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
BETA-KETO-ESTERS; CHIRAL RUTHENIUM(II) CATALYSTS; HIGHLY EFFICIENT CATALYSTS; ASYMMETRIC HYDROGENATION; ENANTIOSELECTIVE HYDROGENATION; FUNCTIONALIZED KETONES; DIPHOSPHINE COMPLEXES; GENERAL-SYNTHESIS; CRYSTAL-STRUCTURE; STEREOSELECTIVE HYDROGENATION;
Keywords:
catalyst precursors; ruthenium-bis(phosphine); enantioselective hydrogenation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
62
Recensione:
Indirizzi per estratti:
Indirizzo: Bergens, SH Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada Univ Alberta Edmonton AB Canada T6G 2G2 n, AB T6G 2G2, Canada
Citazione:
O.M. Akotsi et al., "Versatile precursor to ruthenium-bis(phosphine) hydrogenation catalysts", CHIRALITY, 12(5-6), 2000, pp. 514-522

Abstract

The known complex trans-RuCl2(NBD)Py-2 (1, NBD is norbornadiene, Py is pyridine) reacts with either (R)-BINAP ((R)-2,2'-bis (diphenylphosphino)-1,1'-binaphthyl), (S;S)-Chiraphos ((2S;3S-(-)-2,3-bis (diphenylphosphino)butane), (S;S)Skewphos ((2S;4S)-(-)-2,4-bis(diphenylphosphino), (R)-(S)-Josiphos ((R)-(-)-1-[ (S)-2-(diphenylphosphino)ferrocenyl]ethyl-dicyclohexylphosphine), (R;R)-Norphos ((2R;3R)-(-)-2,3-bis(diphenylphosphino)bicyclo [2.2.1]hept-5-ene), or (R;R)-Me-DUPHOS ((-)-1,2-bis((2R;5R)-2,5-dimethylphospholano togenerate in high yields the crystalline complexes trans-RuCl2(P-P*)Py-2 (P-P* is the corresponding chiral his (phosphine)). The complexes trans-RuCl2(P-P*)Py-2 are active enantioselective hydrogenation catalysts for ketoesters and noncarboxylic olefins in the presence of small amounts of HBF4 (aq.). They are active for hydrogenation of carboxylic substrates in the presence of Et3N. Reaction of trans-RuCl2(P-P*)Py-2 with (rac)-1,2-diphenylethylene-diamine (N-N*, either enantiomer) forms in good yields the corresponding compounds trans-RuCl2(P-P*) (N-N*). Representative hydrogenations with these catalysts are presented. (C) 2000 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 18:14:27