Iodine-catalyzed isomerization of enamides
Abstract
A highly efficient and practical iodine-catalyzed Z-to-E isomerization of enamides under mild conditions is developed. The method exhibits broad substrate scope. Its synthetic utility is demonstrated by gram-scale synthesis and late-stage modification of biorelevant compounds. A plausible mechanism involving iodination, C-C bond rotation, and protodeiodination is proposed.
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