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Synlett 2012(3): 468-472
DOI: 10.1055/s-0031-1290313
DOI: 10.1055/s-0031-1290313
LETTER
© Georg Thieme Verlag
Stuttgart ˙ New York
Direct Vinylogous Aldol Reaction Triggered by Tetrabutylammonium Fluoride: A Highly Regioselective and Diastereoselective Addition of Cyclic β-Haloenals to Aromatic Aldehydes
Further Information
Received
1 November 2011
Publication Date:
19 January 2012 (online)
Publication History
Publication Date:
19 January 2012 (online)
Abstract
A new type of direct vinylogous aldol addition between cyclic β-haloenals and aromatic aldehydes promoted by TBAF has been developed. The reaction was carried out under mild conditions to provide highly functionalized δ-hydroxy-β-halo-α,β-unsaturated aldehydes with high diastereomeric ratios and low to good yields.
Key words
direct vinylogous aldol reaction - TBAF - cyclic β-haloenals - regio- and diastereoselectivity - homoallylic alcohols
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References and Notes
CCDC 825960 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Center via www.ccdc.cam.ac.uk/data_request/cif.