1-Methyl-(2), 1, 2-dimethyl-(3), and l-methyl-2-phenyl-2H-cyclopenta [d] pyridaines (4) were prepared from 2-acetyl-6-(dimethylamino) fulvene (1) and their structures established with the aid of TI NMR and X-ray analysis. The relative chemical shifts of hydrogens adjacent to*-