Interactions and reactions in some 2,2′-disubstituted biphenyls—an open or shut case

Abstract

2-Dimethylaminobiphenyls bearing an electron deficient alkene in the 2′ position show either Me₂N⋯CC interactions (2.941–2.976 Å) or form a new N–C bond (1.586–1.604 Å) to give a zwitterion. The former provides a model for an intermolecular interaction, while the latter provides structural information on organic anionic systems uncoordinated by metal cations.