title: Formation of carbon-sulfur and carbon-selenium bonds by palladium-catalyzed decarboxylative cross-couplings of hindered 2,6-dialkoxybenzoic acids.
abstract: A simple route to diaryl sulfides using a decarboxylative palladium-catalyzed reaction between electron-rich 2,6-dialkoxybenzoic acid derivatives and diaryl disulfides is reported. This coupling proceeds efficiently in the presence of Pd(CF(3)CO(2))(2) and Ag(2)CO(3) in a 65:1 mixture of 1,4-dioxane and tetramethylene sulfoxide (TMSO). We present also the first formation of a carbon-selenium bond via a palladium-catalyzed decarboxylative cross-coupling.
authors.affiliation: Université de Haute Alsace, Institut de Science des Matériaux de Mulhouse, LRC-CNRS 7228, 15 rue Jean Starcky, F-68057 Mulhouse Cedex, France. jean-michel.becht@uha.fr
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Becht
authors.forename: Claude
authors.initials: C
authors.lastname: Le Drian