Abstract
Free-radical chain reactions have been a mainstay of organic chemistry for many years due to the unique chemical behavior of highly reactive radical species. Recently, there has been a surge of interest in utilizing free-radical chain processes in the development of new synthetic methods for a variety of C–H functionalizations. Robust and reliable synthetic methods demand control, or at the very least, mediation of reactive species that are generated during radical chain processes. In the context of reaction optimization for intermolecular reactions, several recent experimental strategies for controlling the rates of radical initiation and propagation are discussed.
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Notes
For recent references that specifically note changes in reactivity between homogeneous and heterogeneous radical reactions see:
For seminal contribution, see:
For a review on direct radical additions to pharmaceutically relevant molecules, see:
For the first report of electrochemical initiation of metal-sulfinates see:
For an in-depth description of electrochemical/IR experimental setup see:
For a review on the persistent radical effect see
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This minireview is dedicated to Professor Donna G. Blackmond on the occasion of her receiving the Gabor A. Samorjai Award for Creative Research in Catalysis from the American Chemical Society.
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Mai, D.N., Baxter, R.D. Experimental Strategies for Controlling Radical Chain Reactions. Top Catal 60, 580–588 (2017). https://doi.org/10.1007/s11244-017-0734-z
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DOI: https://doi.org/10.1007/s11244-017-0734-z