Intermolecular visible-light photoredox atom-transfer radical [3+2]-cyclization of 2-(iodomethyl)cyclopropane-1,1-dicarboxylate with alkenes and alkynes

Abstract

Radical chemistry! A visible-light-promoted, tin/boron-free intermolecular [3+2] atom-transfer radical cyclization reaction was developed by using iridium polyphenylpridinyl complex as the sensitizer (see scheme). 2-(Iodomethyl) cyclopropane-1,1-dicarboxylate reacted with various alkenes and alkynes to form cyclopentane and cyclopentene derivatives. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.