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Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
Published on: April 22, 2016
Photocatalytic Semireduction of Propiolamides in Microheterogeneous Solutions via Alkyne Radical Anions
Jing Wang1, Xiaojing Song1, Xiaohong Di1
1Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
Abstract:
A photocatalytic protocol for generating alkyne radical anions from propiolamides in aqueous micellar solutions is reported. Using ascorbic acid and Ru(bpy)32+ under blue light, hydrated electrons mediate single-electron reduction. Alkyne radical anions undergo Z-selective semireduction or reductive hydroalkylation with styrenes. The method shows a broad scope, excellent functional group tolerance, and gram-scale scalability, replacing hazardous reagents and organic solvents with vitamin C and water.
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