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Generation and Reactivity of Amidyl Radicals: Manganese‐Mediated Atom‐Transfer Reaction
Authors:Run‐Zhou Liu  Jinxia Li  Jun Sun  Xian‐Guan Liu  Shuanglin Qu  Ping Li  Bo Zhang
Abstract:A simple and efficient protocol to generate amidyl radicals from amine functionalities through a manganese‐mediated atom‐transfer reaction has been developed. This approach employs an earth‐abundant and inexpensive manganese complex, Mn2(CO)10, as the catalyst and visible light as the energy input. Using this strategy, site‐selective chlorination of unactivated C(sp3)?H bonds of aliphatic amines and intramolecular/intermolecular chloroaminations of unactivated alkenes were readily realized under mild reaction conditions, thus providing efficient access to a range of synthetically valuable alkyl chlorides, chlorinated pyrrolidines, and vicinal chloroamine derivatives. These practical reactions exhibit a broad substrate scope and tolerate a wide array of functional groups, and complex molecules including various marketed drug derivatives.
Keywords:chlorination  manganese  photochemistry  radicals  synthetic methods
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