Fig. 1: Strategies to access benzosiloles.
From: Photocatalyzed cycloaromatization of vinylsilanes with arylsulfonylazides

a Rh/Pd-catalyzed intermolecular cyclovinylation of arylalkylsilanes with alkynes. b Rh(I)-catalyzed intramolecular aminosilylation of ortho-alkynylarylsilanes. c Photocatalyzed carbocyclization of vinylsilanes with arylsulfonyl azides via alpha-silyl radical Smiles rearrangement.