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Titolo:
Polymer-supported bis(oxazoline)-copper complexes as catalysts in cyclopropanation reactions
Autore:
Burguete, MI; Fraile, JM; Garcia, JI; Garcia-Verdugo, E; Luis, SV; Mayoral, JA;
Indirizzi:
Univ Jaume 1, ESTCE, Dept Quim Inorgan & Organ, E-12080 Castellon, Spain Univ Jaume 1 Castellon Spain E-12080 n & Organ, E-12080 Castellon, Spain Univ Zaragoza, Fac Ciencias, CSIC, Inst Ciencia Mat Aragon,Dept Quim Organ, E-50009 Zaragoza, Spain Univ Zaragoza Zaragoza Spain E-50009 Quim Organ, E-50009 Zaragoza, Spain
Titolo Testata:
ORGANIC LETTERS
fascicolo: 24, volume: 2, anno: 2000,
pagine: 3905 - 3908
SICI:
1523-7060(20001130)2:24<3905:PBCACI>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
BIS-OXAZOLINE LIGANDS; DIELS-ALDER REACTION; ASYMMETRIC CYCLOPROPANATION; HETEROGENEOUS CATALYSTS; AMINO-ALCOHOLS; OLEFINS; CHEMISTRY; ALUMINUM; DESIGN; CLAYS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: Luis, SV Univ Jaume 1, ESTCE, Dept Quim Inorgan & Organ, E-12080 Castellon, Spain Univ Jaume 1 Castellon Spain E-12080 , E-12080 Castellon, Spain
Citazione:
M.I. Burguete et al., "Polymer-supported bis(oxazoline)-copper complexes as catalysts in cyclopropanation reactions", ORG LETT, 2(24), 2000, pp. 3905-3908

Abstract

Bis(oxazolines) are easily immobilized by functionalization of the centralmethylene bridge with polymerizable groups and subsequent polymerization. Polymers are transformed into copper catalysts active in the cyclopropanation of styrene with ethyl diazoacetate. The results are similar or even better than those obtained with the similar homogeneous systems, and the catalysts can be easily recovered and reused. The substitution in the methylene bridge leads to a slight reduction in the enantioselectivity and an unexpected cis preference.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 19:57:20