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Synthesis 2001(10): 1456-1458
DOI: 10.1055/s-2001-16092
SHORTPAPER
© Georg Thieme Verlag Stuttgart · New York

An Easy Palladium-Catalyzed Access to Substituted 3-Methylene-3,4-dihydro-2H-1,5-benzodioxepines

Celine Damez, Jean-Robert Labrosse, Paul Lhoste, Denis Sinou*
Laboratoire de Synthèse Asymétrique, UMR CNRS 5622, CPE Lyon, Université Claude Bernard Lyon 1, 43, boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex, France
Fax: +33(4)72448160; e-Mail: sinou@univ-lyon1.fr;
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Received 12 March 2001
Publikationsdatum:
29. September 2004 (online)

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Abstract

Palladium-catalyzed condensation of substituted benzene-1,2-diols with the biscarbonate of 2-(hydroxymethyl)allyl alcohol gave the corresponding 3-methylene-3,4-dihydro-2H-1,5-benzodioxepines in good yields.

Key words

catalysis - palladium - cyclization - phenols - allyl complexes