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Synlett 2008(11): 1661-1664
DOI: 10.1055/s-2008-1078495
DOI: 10.1055/s-2008-1078495
LETTER
© Georg Thieme Verlag Stuttgart · New York
Asymmetric Direct Mannich Reaction Catalyzed by Chiral Brønsted Acid via Activation of Enecarbamate as an Aliphatic Imine Alternative
Further Information
Received
13 April 2008
Publication Date:
11 June 2008 (online)
Publication History
Publication Date:
11 June 2008 (online)
Abstract
An enantioselective direct Mannich reaction of acetylacetone with enecarbamates via protonation by a chiral monophosphoric acid catalyst is achieved, demonstrating the utility of in situ generation of unstable aliphatic imines.
Key words
organocatalysis - Mannich reaction - imines - asymmetric catalysis - isomerizations
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