Halogen bonding-induced 1,3-carbohydroxylation of allyl carboxylates <i>via</i> 1,2-cationic acyloxy migration (1,2-CAM).

ABSTRACT: Halogen bonding has emerged as a powerful yet underexplored tool for modulating radical reactivity. Here we demonstrate that halogen-bonding interactions between alkyl iodides and water can lower the C-I bond dissociation energy, enabling visible-light-induced photolysis to generate alkyl radicals under mild conditions. Harnessing this activation mode, we achieved a previously unknown 1,3-carbohydroxylation of allyl carboxylates, wherein radical addition is coupled with 1,2-cationic acyloxy migration (CAM) to furnish β-acyloxy alcohols. The transformation exhibits broad structural tolerance, accommodating diverse esters, thioesters, amides, and perfluoroalkyl iodides, and is effective in the late-stage diversification of natural products and drug-derived scaffolds. Mechanistic studies, inc

SUBMITTER: Sharma S 

PROVIDER: S-EPMC12728568 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature