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Atom Transfer Radical Polymerization of Functionalized Vinyl Monomers Using Perylene as a Visible Light Photocatalyst
Published on: April 22, 2016
Palladium photocatalysis: a strategic approach for visible-light-mediated C(sp2)-H arylation
Parag Mistry1, Biprajit Paul1, Vikas Ranga1
1Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab 140001, India. indranil.chatterjee@iitrpr.ac.in.
Abstract:
A strategic and energy-efficient protocol has been developed to construct C(sp2)-C(sp2) bonds through C-H bond functionalization. Herein, Pd-photoredox catalysis under blue LED irradiation was used to generate aryl (or heteroaryl) radicals from the corresponding redox-active iodoarenes and utilize them in C-H bond arylation. The key attraction lies in the wide functional group tolerance with impressive yield and the late-stage functionalization of natural products under mild reaction conditions. Operational simplicity and mechanistic evidence for photoinduced Pd catalysis illustrate the promise of this approach as a comprehensive platform for sustainable aryl-aryl cross-coupling.
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