抄録
The reactivity of 3-ferrocenyl-pyrazolones was studied. Alkylation of 3-ferrocenyl-2-pyrazolin-5-one (2b) occurred on the pyrazolone ring to give 2 or 4 alkyl or 5 alkoxy derivatives. Vilsmeyer-Haack formylation of 3-ferrocenyl-3-pyrazolin-5-one (5a) occurred on the pyrazolone ring at 4 position. Diazocoupling reaction to 3-ferrocenyl-2-pyrazolin-5-ones (2a, b) occurred on the pyrazolone ring at 4 position as well.
