Synthesis 2016; 48(18): 3097-3106
DOI: 10.1055/s-0035-1560449
paper
© Georg Thieme Verlag Stuttgart · New York

Palladium-Catalysed Desulfitative Heck Reaction Tolerant to Aryl Carbon–Halogen Bonds for Access to (Poly)halo-Substituted Stilbene or Cinnamate Derivatives

Aymen Skhiri
a   Institut Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes ‘Organométalliques: Matériaux et Catalyse’, Campus de Beaulieu, 35042 Rennes, France   eMail: henri.doucet@univ-rennes1.fr
b   Laboratoire de Chimie Organique Physique (UR 11ES74) Université de Sfax, Faculté des Sciences de Sfax, Route de la Soukra km 4, 3038 Sfax, Tunisie   eMail: ridhabensalem@yahoo.fr
,
Ridha Ben Salem*
b   Laboratoire de Chimie Organique Physique (UR 11ES74) Université de Sfax, Faculté des Sciences de Sfax, Route de la Soukra km 4, 3038 Sfax, Tunisie   eMail: ridhabensalem@yahoo.fr
,
Jean-Francois Soulé
a   Institut Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes ‘Organométalliques: Matériaux et Catalyse’, Campus de Beaulieu, 35042 Rennes, France   eMail: henri.doucet@univ-rennes1.fr
,
Henri Doucet*
a   Institut Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes ‘Organométalliques: Matériaux et Catalyse’, Campus de Beaulieu, 35042 Rennes, France   eMail: henri.doucet@univ-rennes1.fr
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Publikationsverlauf

Received: 03. Februar 2016

Accepted after revision: 29. März 2016

Publikationsdatum:
11. Mai 2016 (online)


Abstract

The palladium-catalysed desulfitative Heck type reaction of (poly)halo-substituted benzenesulfonyl chlorides with alkenes was investigated. Styrene or acrylates in the presence of bromo- or iodobenzenesulfonyl chlorides and a phosphine-free palladium catalyst were found to afford the expected β-arylated Heck type products with complete regio- and stereoselectivities. The reaction tolerates a variety of substituents on the halobenzenesulfonyl chloride. Moreover, no cleavage of the C–Br and C–I bonds was observed in the course of these reactions, allowing further transformations. Using 4-bromobenzenesulfonyl chloride as the central unit, consecutive desulfitative Heck type reaction followed by palladium-catalysed direct arylation allowed to prepare heteroarylated stilbene derivatives in only two steps.

Supporting Information