In mixed tetrahydrogenfuran-ether solvent, exocyclc double bond addition reactions of 6, 6-dialkylfulvenes or 6, 6- polymethylenefulvenes take place with 6-methyl-2-pyridylmethyllithium. When 6-methyl-6-ethylfulvene or 6, 6-pentamethylenefulvene reacts with 2-quinolylmethyllithium under similar conditions, addition and α -hydrogen abstract occur competitively. A series of nitrogen- heterocyclic substituted ferrocene derivatives have been synthesized by complexation of substituted cyclopentadienyllithium obtained in above reactions with FeCl~2. Their structures have been characterized by ^1H NMR, elemental analysis and mass spectra. In their MS breakdown mechanism, coordination of pyridyl moiety to iron atom is proposed.

Key words: FERROCENE, LITHIUM METHIDE, PICOLYL, FULVENE, ADDITION REACTION, TETRAHYDROFURAN