Gold(l)-catalyzed intermodular oxyarylation of alkynes: Unexpected regiochemistry in the alkylation of arenes
The reaction between acetylenes and sulfoxides, studied as a test case for gold-catalyzed intermolecular addition, provides the oxyarylation compounds 3 In good yields. Unpredictably, In all cases a single regioisomer arising from the electrophilic aromat