Visible-Light-Mediated Divergent and Regioselective Vicinal Difunctionalization of Styrenes with Arylazo Sulfones
Résumé
Activated by visible light, arylazo sulfones can serve as multifaceted reactants and employed in diazenylation, sulfonylation, and arylation reactions under (photo)catalyst free conditions. Such versatile reactivity enabled us to develop an operationally simple, regioselective and tunable difunctionalization of styrenes with arylazo sulfones to produce α-sulfonylarylhydrazones and 1,2-alkoxyarylated products in moderate to excellent yields. Furthermore, such difunctionalized products have been exploited as key building blocks for the synthesis of various heterocycles
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