Electrochemical catalytic synthesis method of alpha-carbonyl ketone compounds

A synthesis method and compound technology, applied in the field of electrochemical catalytic synthesis of α-carbonyl ketones, can solve the problems of increased reaction cost and post-processing complexity, ineffective reaction, and high-concentration organic waste discharge. Achieve high yield, avoid equipment cost and reduce reaction cost
CN104313635AInactive Publication Date: 2015-01-28BEIJING UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2015-01-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an electrochemical catalytic synthesis method of alpha-carbonyl ketone compounds, and belongs to the technical field of preparation of alpha-carbonyl ketone compounds. The electrochemical catalytic synthesis method comprises the following steps: in a single-chamber electrolytic cell, in a certain amount of electrolyte solution, with alpha-carbonyl ketone as a raw material and halide as a catalyst, performing constant-current electrolysis at a certain temperature and a certain current density to obtain the alpha-carbonyl ketone compounds. Compared with the existing other electrochemical methods for synthesizing the alpha-carbonyl ketone compounds, the electrochemical catalytic synthesis method provided by the invention has the advantages as follows: the single-chamber electrolytic cell and an inexpensive electrode material are used, and an oxidant is regenerated by an electrochemical method; supporting electrolyte is not added, and only a catalytic amount of halide is taken as the catalyst, so that the cost is greatly reduced and the posttreatment is simple; therefore, the electrochemical catalytic synthesis method is more convenient for industrial production.
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Description

technical field

[0001] The invention relates to an electrochemical catalytic synthesis method of α-carbonyl ketone compounds, belonging to the technical field of preparation of α-carbonyl ketone compounds. Background technique

[0002] α-Carbonyl ketones are important solvents, reaction intermediates or chemical reagents. In addition, many α-carbonyl ketones are also widely used as fragrances. For example, 3,4-hexanedione has a buttery aroma, and diacetyl has a creamy aroma. They are widely used in the production of cream, cheese, chocolate, candy, jelly and pudding. Therefore, the efficient use of α-carbonyl ketones Synthesis is in the spotlight.

[0003] The electrochemical oxidation of α-hydroxy ketones is one of the ways to synthesize these compounds. Torii (Inokuchi, T.; Matsumoto, S.; Torii, S.J.Org.Chem.1991,56,2416) etc. in sodium bromide and N-oxo-2,2,6,6-tetramethylpiperidinium In the presence of the double catalyst composed, benzil was prepared by constant cur...

Claims

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