Pyrylium salts acting as both energy transfer and electron transfer photocatalysts for <i>E</i> → <i>Z</i> isomerization of activated alkenes and cyclization of cinnamic or biaryl carboxylic acids
Lei Bao, Jin‐Tang Cheng, Zhixiang Wang, Xiang‐Yu Chen
Abstract
Here we report that 2,4,6-triarylpyrylium salts could perform both energy transfer and electron transfer photocatalysis modes for E → Z isomerization of activated alkenes and cyclization of cinnamic or biaryl carboxylic acids.
Topics & Concepts
ChemistryIsomerizationElectron transferCinnamic acidPhotocatalysisPhotochemistryEnergy transferOrganic chemistryCatalysisMolecular physicsRadical Photochemical ReactionsSulfur-Based Synthesis TechniquesCatalytic C–H Functionalization Methods