Neighboring Acetal-Assisted Brønsted-Acid-Catalyzed Si-H Bond Activation: Divergent Synthesis of Functional Siloxanes through Silylation and Hydrolytic Oxidation of Organosilanes
A novel metal-free intramolecular Bronsted-acid-catalyzed domino deprotection–hydrosilylation with hydrosilanes has been developed, and the unexpected Bronsted-acid-catalyzed intermolecular hydrolytic oxidation to functional siloxanes was described for the divergent and facile synthesis of functionalized siloxanes containing aldehyde motifs. We propose that these reactions proceed via neighboring acetal-assisted