Bypassing the Energy Barrier of Homolytic Photodehalogenation in Chloroaromatics through Self-Quenching
作者:Daniel Limones-Herrero、Raúl Pérez-Ruiz、M. Consuelo Jiménez、Miguel A. Miranda
DOI:10.1021/ol400251s
日期:2013.3.15
Reductive photodehalogenation of chloroaromatics is assumed to proceed from the triplet excited state, although its energy is often insufficient to promote a clean homolytic C–Cl cleavage. A clear-cut experimental proof is provided that correlates self-quenching of the directly observed triplet excited states of chlorocarbazole-based dyads 1 and 2 with photoreactivity via intramolecular charge transfer