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Synthesis 2005(5): 757-760
DOI: 10.1055/s-2005-861810
DOI: 10.1055/s-2005-861810
PAPER
© Georg Thieme Verlag Stuttgart · New York
Neutral Lewis Bases as Activators of Molecular Sieves in the Conjugate Addition of 1,3-Dicarbonyl Compounds
Further Information
Received
9 November 2004
Publication Date:
14 February 2005 (online)
Publication History
Publication Date:
14 February 2005 (online)
Abstract
The catalytic properties of 3 Å molecular sieves in the promotion of Michael addition of 1,3-dicarbonyl compounds are significantly improved by activation with several neutral Lewis bases. Comparable efficiency can be observed under solvent-free conditions.
Key words
conjugate addition - molecular sieves - Lewis base - silica gel
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