Method for preparing acetal compound by room-temperature ionic liquid catalyst

A room temperature ionic liquid, catalytic preparation technology, used in the preparation of organic compounds, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc. To achieve the effect of reducing pollution, simple preparation and mild reaction conditions
CN101544628AInactive Publication Date: 2009-09-30LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2009-09-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for synthesizing an acetal compound by taking a room-temperature ionic liquid as a catalyst. The method comprises the following step: taking aldehyde or aldehyde-ethanol as a reactant, and synthesizing the acetal compound in the presence of no other organic solvent and dehydrating agent. Compared with the prior synthesizing method, the method has mild reaction conditions, does not use strongly corrosive acid, such as sulfuric acid, hydrochloric acid, and the like as catalyst, and does not use other organic solvent and dehydrating agent any longer. The method has the characteristics of simple operation, high catalytic activity, good selectivity, reusage, and the like. Thus, the method has good application prospect.
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Description

technical field

[0001] The invention relates to a method for synthesizing acetal compounds by using room temperature ionic liquid as a catalyst. Background technique

[0002] Carbonylation reaction is an important class of organic reaction, which has a wide range of applications in organic synthesis, industrial production and other fields. Acetal compounds are stable in nature, and most of them have special aroma. They are high-end new spices developed in the past ten years. In organic synthesis, acetal (ketone) is often used to protect the carbonyl group. In addition, acetal (ketone) compounds are also commonly used as intermediates and target products in the synthesis of steroids and sugars, paint and pharmaceutical industries, and even Can be used as a special reaction solvent. For example, methylal can be used to prepare anion exchange resin, oxidize to produce high-concentration formaldehyde and polyacetal resin, etc.; acetal is an important wine additive, and is also...

Claims

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