Title of article
Asymmetric Michael addition of glycine imines via quaternary ammonium ion catalysis
Author/Authors
Lygo، نويسنده , , Barry and Allbutt، نويسنده , , Bryan and Kirton، نويسنده , , Eirene H.M. and Tughan، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2005
Pages
4
From page
4461
To page
4464
Abstract
The asymmetric Michael addition of glycine imine esters to simple α,β-unsaturated ketones via PTC is investigated. It is found that by employing 1 mol % of a chiral quaternary ammonium salt, derived from α-methylnaphthylamine in conjunction with Cs2CO3, high enantioselectivities can be obtained in conjugate additions involving simple alkylvinylketones.
Keywords
Phase-transfer catalysis , amino acids , Michael addition
Journal title
Tetrahedron Letters
Serial Year
2005
Journal title
Tetrahedron Letters
Record number
1846019
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