Facile C–S Bond Cleavage of Aryl Sulfoxides Promoted by Brønsted Acid
作者:Nuno Maulide、Bogdan R. Brutiu、Immo Klose
DOI:10.1055/s-0040-1707109
日期:——
A method for the Bronsted acid promoted desulfination of aryl sulfoxides is presented. In the presence of a thiol, electron-rich sulfoxides undergo C–S bond cleavage to give the corresponding protodesulfinated arenes and disulfides.
Studies of the Selective O-Alkylation and Dealkylation of Flavonoids. XVI. Demethylation of 2′-Methoxyacetophenones with Anhydrous Aluminum Chloride or Bromide in Acetonitrile
chloride in acetonitrile was studied to survey its scope and limitations. The mechanism which the reaction proceeds via sterically constrained intermediates was proposed from the substituent effects. Additionally, dealkylation of 2′-benzyloxy-, 2′-ethoxy-, and 2′-isopropoxyacetophenones with two demethylating reagents, hydrochloricacid in acetic acid and anhydrous aluminum bromide in acetonitrile, was
Metal-free C–H thioarylation of arenes using sulfoxides: a direct, general diaryl sulfide synthesis
作者:José A. Fernández-Salas、Alexander P. Pulis、David J. Procter
DOI:10.1039/c6cc07627k
日期:——
Metal-free C-H thioarylation of arenes and heteroarenes using methyl sulfoxides constitutes a general metal-free protocol for the synthesis of high value diarylsulfides. The coupling of arenes and heteroarenes with...