ChemInform Abstract: An Innovative Protocol for the Synthesis of 3-(Pyridin-2-yl)-5-sec-aminobiphenyl-4-carbontriles and 9,10-Dihydro-3-(pyridine-2-yl)-1-sec-aminophenanthrene-2-carbonitriles

12 Title compounds of type (III), (V), or (VII) are prepared by a ring transformation reaction via a two-carbon insertion from 2-acetylpyridine (II).