Metal-free reductive cleavage of C-N and S-N bonds by photoactivated electron transfer from a neutral organic donor

Angew Chem Int Ed Engl. 2014 Jan 7;53(2):474-8. doi: 10.1002/anie.201306543. Epub 2013 Dec 6.

Abstract

A photoactivated neutral organic super electron donor cleaves challenging arenesulfonamides derived from dialkylamines at room temperature. It also cleaves a) ArCNR and b) ArNC bonds. This study also highlights the assistance given to these cleavage reactions by the groups attached to N in (a) and to C in (b), by lowering LUMO energies and by stabilizing the products of fragmentation.

Keywords: cleavage reactions; electron transfer; photochemistry; radical ions; reduction.