A tandem annulation of arylpropynols with disulfides has been developed for the synthesis of 2-sulfenylindenone derivatives. The reaction pathway involves one-pot tandem Meyer-Schuster rearrangement of arylpropynols and successive radical cyclization with disulfides. Various arylpropynols and disulfides with a number of functional groups are compatible in this reaction that affords the corresponding 2-sulfenylindenones in moderate to good yields.

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Aryl sulfides and aryl disulfides are synthesized by palladium-catalyzed direct sulfenylation of arenes. The selective mono-or di-sulfenylation is controlled by the amount of N-arylthiobenzamide (II). -(ZHANG, X.-S.; LI, G.; ZHANG*, X.-G.; ZHANG, X.-H.; Tetrahedron 71 (2015) 34, 5458-5464, http://dx.

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