65894-26-0Relevant articles and documents
Method for catalyzing aldol self-condensation reaction of low-carbon aldehyde by acid alkali double-function ionic liquid
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Paragraph 0042-0044, (2018/03/01)
The invention relates to a method for catalyzing aldol self-condensation reaction of low-carbon aldehyde by acid alkali double-function ionic liquid. The method comprises the following steps: adding low-carbon aldehyde and an acid alkali double-function ionic liquid catalyst into a high-pressure kettle, reacting at 60 to 150 DEG C for 1 to 12 hours, and performing hydroxyaldehyde self-condensationreaction on the low-carbon aldehyde to obtain long-chain unsaturated aldehyde, wherein the acid alkali double-function ionic liquid is the acid alkali double-function ionic liquid with cation and anion containing acid and alkali groups correspondingly, or the novel acid alkali double-function ionic liquid with cation containing acid and alkali groups. The method is applied to aldol self-condensation reaction of n-butanal and n-pentanal and is mild in reaction condition, high in catalytic activity and high in selectivity; and the acid alkali double-function ionic liquid catalyst can be reused.