Synthesis of Substituted 1, 4-dihydro-4-ferrocenylpyridines and 3-ferrocenyl-2-pyrazolines Catalyzed by Ionic Liquid [Bmim] OH

5-aryl-3-ferrocenyl-1-phenyl-2-pyrazolines have been synthesized by the reaction of α, β-unsaturated ketones with phenylhydrazine in ionic liquid [Bmim]OH. While 4-ferrocenyl-1,4-dihydropyridine-2,6-dimethyl-3,5-dicarboxylic acid alkyl ester have been synthesized by the Hantzsch reaction in ionic liquid [Bmim]OH. Structures of all new compounds have been elucidated by microanalyses, 1H and 13C NMR spectroscopies.

JIAN ZHANG, CHENGXIANG SHANG, LONGFEI JIN