Oxidative electrochemical aryl C–C coupling of spiropyrans?

Chemical Communications Pub Date: 2013-06-11 DOI: 10.1039/C3CC42396D

Abstract

The isolation and definitive assignment of the species formed upon electrochemical oxidation of nitro-spiropyran (SP) is reported. The oxidative aryl C–C coupling at the indoline moiety of the SP radical cation to form covalent dimers of the ring-closed SP form is demonstrated. The coupling is blocked with a methyl substituent para to the indoline nitrogen.

Graphical abstract: Oxidative electrochemical aryl C–C coupling of spiropyrans
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