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Efficient 5‐exo‐trig atom‐transfer radical cyclisation of 13 unsaturated α‐halogeno amides mediated by Cu0 (copper wire) with tripyridylmethanimine ligand (TPMA; 1 mol‐%) in a mixed solvent of EtOAc/EtOH (3:1) is reported (89–98 %), with recycling of the copper wire. A substantial improvement in conversion and selectivity was obtained when Na2CO3 (5 mol‐%) was added to the reaction mixture. The Cu...
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