Crystal structures of three 4-substituted-2,2′-bipyridines synthesized by Sonogashira and Suzuki–Miyaura cross-coupling reactions

Abstract

In the crystal structures of three 4-substituted-2,2′-bi­pyridines prepared using facile synthetic procedures, two novel 4-alkynyl-2,2-bi­pyridines via the Sonogashira cross-coupling reaction and one 4-aryl-2,2′-bi­pyridine via the Suzuki–Miyaura cross-coupling reaction, the planar 4-alkynyl-substituted derivatives are in contrast to the non-planar 4-aryl derivative.