Mannich-type allylic C–H functionalization of enol silyl ethers under photoredox–thiol hybrid catalysis

The synergy of an Ir-based photosensitizer with mild oxidizing ability and a thiol catalyst enables efficient allylic C–H functionalization of enol silyl ethers with imines under visible light irradiation.

Photoredox-catalyzed sulfonylation of difluoroenoxysilanes with the insertion of sulfur dioxide

A photoredox-catalyzed three-component reaction of aryldiazonium tetrafluoroborates with sodium metabisulfite and 2,2-difluoro enol silyl ethers is described, providing α,α-difluoro-β-ketosulfones in moderate to good yields under mild conditions.

Modular synthesis of oligoacetylacetones via site-selective silylation of acetylacetone derivatives

Aliphatic oligoketones with tailored carbonyl and substituent sequences were modularly synthesized utilizing site-selective formation of enol silyl ethers. Their unique conformational preferences in solid-state were revealed by X-ray crystallography.