Noncatalytic Synthesis of 5-[4-(Pyrrolidin-1-yl/piperidin-1-yl)­phenyl](bi)pyridines

Abstract

The possibility of noncatalytic substitution of halogen at the para-position of 6-phenyl substituent in 1,2,4-triazines by a cyclic amine (pyrrolidine or piperidine) under solvent-free conditions has been studied. The resulting 1,2,4-triazines can be converted to the corresponding (bi)pyridine derivatives via the Boger reaction with norbornadiene under elevated pressure.