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Titolo:
Asymmetric cyclopropanation catalyzed by copper-Schiff's base complexes
Autore:
Li, ZN; Zheng, Z; Wan, BS; Chen, HL;
Indirizzi:
Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China Chinese Acad Sci Dalian Peoples R China 116023 n 116023, Peoples R China
Titolo Testata:
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
fascicolo: 1-2, volume: 165, anno: 2001,
pagine: 67 - 71
SICI:
1381-1169(20010108)165:1-2<67:ACCBCB>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENANTIOSELECTIVE CYCLOPROPANATION; CARBENOID REACTION; OXAZOLINE LIGANDS; OLEFINS; DIAZOACETATES; DERIVATIVES; STYRENE;
Keywords:
cyclopropanation; Schiff base Cu(II) complex; diazoacetate; asymmetric catalysis; styrene;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Li, ZN Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China Chinese Acad Sci Dalian Peoples R China 116023 3, Peoples R China
Citazione:
Z.N. Li et al., "Asymmetric cyclopropanation catalyzed by copper-Schiff's base complexes", J MOL CAT A, 165(1-2), 2001, pp. 67-71

Abstract

The asymmetric cyclopropanation of styrene with alkyl diazoacetate were performed with copper complexes of Schiff bases, derived from substituted salicylaldehydes and a new chiral amino alcohol, as the catalysts. The electronic and steric properties, as well as the position of those substituents show obvious effects on the enantioselectivities, and ee higher than 98% wereachieved under optimal conditions. (C) 2001 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 05/04/20 alle ore 23:01:14