Simple preparation method of fresh alcohol

Through the Mannich reaction and flash distillation purification process, cheap and readily available nitrogen-containing organic base catalysts and reducing agents are used to simplify the synthesis process of fresh alcohol, solve the problems of numerous processes and high safety risks in the existing technology, and achieve the preparation of fresh alcohol with high purity and low cost.

CN120682081APending Publication Date: 2025-09-23ANHUI HUAYE SPICES HEFEI CO LTD
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Patent Information

Application Number
CN202510846383.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-24
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

The existing synthesis method of fresh alcohol has many steps, high safety risks and high costs, and the Grignard reagents and high temperature and high pressure reactions used have strict requirements on equipment.

Method used

The Mannich reaction is adopted, using cheap and readily available nitrogen-containing organic base catalysts and reducing agents, through the aldol condensation reaction of 3-octanone and propionaldehyde, followed by the reduction of 4-methyl-3-decen-5-one with a reducing agent, and finally purified by flash distillation to obtain fresh alcohol.

Benefits of technology

It realizes the simple preparation of fresh alcohol under mild conditions, reduces equipment requirements and safety risks, improves product purity and production efficiency, and is suitable for large-scale industrial production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a simple preparation method of fresh alcohol, and belongs to the technical field of fine chemical engineering and flavors and fragrances. According to the method, 3-octanone and propionaldehyde are used as reaction raw materials, aldol condensation reaction is firstly carried out under the action of a catalyst, then the aldol condensation reaction is reduced by using a reducing agent, and finally the fresh alcohol is obtained after flash evaporation and purification. The reaction conditions are mild; the nitrogen-containing organic alkali is used as a catalyst, so that the use of corrosive liquid alkali is avoided, and the problems of equipment corrosion and wastewater treatment are reduced; the nitrogen organic base catalyst can be in full contact with a liquid reactant, and a flash evaporation purification process is utilized, so that the yield is high; raw materials are easy to obtain, process steps are simple, the method is suitable for large-scale industrial production, and production cost is reduced; in conclusion, the method has the advantages of simplicity in operation, mild reaction conditions, high safety, high product purity and low cost, industrial production is easy to realize, and the method has important application value in the technical field of preparation of fresh alcohol.
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