Study of new synthesized ferrocenyl ionic liquids in oxidative esterification reaction

ABSTRACT

In this work, novel ferrocene-based ionic liquids, 1-(ferrocenylbutyl)-4-(3-methylimidazolium) Azide and 1-(ferrocenylbutyl)-4-(3-methylimidazolium) Tetrafluoroborate, were synthesized and utilized in the oxidation esterification reaction of aldehydes in the present of different reagents such as NaN₃, (K₂CO₃ and NCS), (KI and KCN), (I₂ and K₂CO₃), (KMnO₄). The results were compared with that of [BMIM][X] (X˭Cl, BF₄) under the same conditions. As expected, ferrocene-based ionic liquids showed better results; It seems, iron nuclear may play a similar role such as iron catalysts in these novel ionic liquids and can facilitated the oxidation esterification reaction with improve the yield and decrease the reaction time.

GRAPHICAL ABSTRACT

KEYWORDS:

• Ferrocene
• ionic liquid
• oxidative esterification