The Reduction Of Ferrocenyl Alcohols, Aldehyde And Ketones Derivatives To Alkylferrocene In The Ionic Liquids.

In recent years,the Ionic liquids dramatically developed with physical and chemical properties.The Ionic liquids as a friendly solvent to environment have been successfully applied many organic reactions.This paper mainly investigated that the reduction of ferrocenyl alcohols,aldehyde,and ketones derivatives to alkylferrocene using sodium borohydride and aluminum chloride in the ionic liquid BMImBF₄.1.Ten different ionic liquids were synthesized to investigate the reduction of acetylferrocene to ethylferrocene using NaBH₄/AlCl₃ in the ionic liquids.The experimental results showed that the ionic liquids including BF₄^- can effectively accelerate this reaction.2.We choiced BMImBF₄ as reaction solvent.The effect of the molar ratio of substituents,amounts of solvent,reaction temperature,and reaction time were investigated.3.Sixteen ferrocenyl alcohols,aldehyde,and ketones derivatives were synthesized and effectively reduced to alkylferrocene in the ionic liquid BMImBF₄.All compounds have been characterized by IR,¹H NMR spectroscopy and elemental analysis. 4.We further explored that the ionic liquid was recycled and reused efficiently. The experimental procedure is very simple,mild reaction condition,yield,and the ionic liquid was recycled and reused efficiently at seven times.