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Catalyst structure and the enantioselective cyclopropanation of alkenes by copper complexes of biaryldiimines: the importance of ligand acceleration

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UNSPECIFIED (2001) Catalyst structure and the enantioselective cyclopropanation of alkenes by copper complexes of biaryldiimines: the importance of ligand acceleration. TETRAHEDRON-ASYMMETRY, 12 (7). pp. 1055-1061.

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Abstract

The use of chiral non-racemic biaryl copper(I) complexes in the enantioselective cyclopropanation of a number of olefins with either ethyl or tert-butyl diazoacetate: is described. Lack of ligand acceleration and the presence of equilibrium amounts of catalytically active uncomplexed Cu(I) ions account for lowered enantioselectivity when using certain ligands. (C) 2001 Elsevier Science Ltd. All rights reserved.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Journal or Publication Title: TETRAHEDRON-ASYMMETRY
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
ISSN: 0957-4166
Official Date: 8 May 2001
Dates:
DateEvent
8 May 2001UNSPECIFIED
Volume: 12
Number: 7
Number of Pages: 7
Page Range: pp. 1055-1061
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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