Title of article
Design of a new class of chiral C2-symmetric dipyridylmethane ligands and their application in asymmetric catalysis
Author/Authors
Giorgio Chelucci، نويسنده , , Giorgio and Loriga، نويسنده , , Giovanni and Murineddu، نويسنده , , Gabriele and Pinna، نويسنده , , Gerard A.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2002
Pages
4
From page
8599
To page
8602
Abstract
A new class of chiral C2-symmetric dipyridylmethane ligands was prepared from naturally occurring monoterpenes, according to a method based on a double Michael–azaannellation–aromatization sequence. These ligands were assessed in the enantioselective palladium-catalyzed allylic alkylation of 1,3-diphenylprop-2-enyl acetate with dimethylmalonate and in the copper-catalyzed cyclopropanation of styrene with ethyl diazoacetate. Enantioselectivity up to 88% ee was obtained.
Keywords
dipyridylmethane ligands , Enantioselectivity , allylic alkylation , Cyclopropanation
Journal title
Tetrahedron Letters
Serial Year
2002
Journal title
Tetrahedron Letters
Record number
1659168
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