Characterizing Chain Processes in Visible Light Photoredox Catalysis.

ABSTRACT: The recognition that Ru(bpy)₃²⁺ andsimilar visible light absorbing transition metal complexes can be photocatalysts for a variety of synthetically useful organic reactions has resulted in a recent resurgence of interest in photoredox catalysis. However, many of the critical mechanistic aspects of this class of reactions remain poorly understood. In particular, the degree to which visible light photoredox reactions involve radical chain processes has been a point of some disagreement that has not been subjected to systematic analysis. We have now performed quantum yield measurements to demonstrate that threerepresentative, mechanistically distinct photoredox processes involve product-forming chain reactions. Moreover, we show that the combination of quantum yield and l

SUBMITTER: Cismesia MA 

PROVIDER: S-EPMC4676763 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature