A New Approach to 2,2′-Bipyridines with a Triptycen-2-amine Fragment

Abstract

An efficient synthetic approach to 2,2′-bipyridines with a triptycen-2-ylamino [(9R,10R)-9,10-di­hydro-9,10-[1,2]benzenoanthracen-2-ylamino] substituent at the α-position has been developed on the basis of 1,2,4-triazine precursors. The synthesis includes nucleophilic substitution of the cyano group in 3-(pyridine-2-yl)-1,2,4-triazine-carbonitriles, followed by the Boger reaction with norbornadiene.