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Research of basic ionic liquid on the Knoevenagel reaction

Jian Wei Zhou

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Abstract

The basic ionic liquid 1-butyl-3-methylimidazolium hydroxide([bmim]OH) was prepared.The application on the Knoevenagel reaction of ionic liquid was researched with aromatic aldehydes with malononitrile or ethyl cyanoacetate.The experimental results showed that,the reactants were stirred within 10～30 minutes under room temperature in the precence of ionic liquid with 20% mole fraction.In addition the product was obtained with 85～95% yields under no solvent.The procedure was simple and facile,and the ionic liquid could be recycled with five times.

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What this paper is about

The basic ionic liquid 1-butyl-3-methylimidazolium hydroxide([bmim]OH) was prepared.The application on the Knoevenagel reaction of ionic liquid was researched with aromatic aldehydes with malononitrile or ethyl cyanoacetate.The experimental results showed that,the reactants were stirred within 10～30 minutes under room temperature in the precence of ionic liquid with 20% mole fraction.In addition the product was obtained with 85～95% yields under no solvent.The procedure was simple and facile,and the ionic liquid could be recycled with five times.

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Available abstract

The basic ionic liquid 1-butyl-3-methylimidazolium hydroxide([bmim]OH) was prepared.The application on the Knoevenagel reaction of ionic liquid was researched with aromatic aldehydes with malononitrile or ethyl cyanoacetate.The experimental results showed that,the reactants were stirred within 10～30 minutes under room temperature in the precence of ionic liquid with 20% mole fraction.In addition the product was obtained with 85～95% yields under no solvent.The procedure was simple and facile,and the ionic liquid could be recycled with five times.

Key concepts: Ionic liquid, Malononitrile, Knoevenagel condensation, Chemistry, Solvent, Organic chemistry, Hydroxide, Inorganic chemistry

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