Method for synthesizing chiral carvone from chiral 8-hydroxycarvone

A technology of hydroxycarvone and carvone, applied in the chemical field, can solve problems such as unfavorable industrialized production, complicated reaction route, expensive gold catalyst, etc., and achieve the effects of good industrial application prospect, high reaction efficiency, and reduced production cost.
CN112441899AActive Publication Date: 2021-03-05江苏宏邦化工科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
江苏宏邦化工科技有限公司
Publication Date
2021-03-05

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Abstract

The invention discloses a method for synthesizing chiral carvone from chiral 8-hydroxycarvone. The method comprises the following steps: dissolving chiral 8-hydroxycarvone and a catalyst in a solvent,carrying out heating to realize an end removal reaction of chiral 8-hydroxycarvone so as to generate chiral carvone, conducting filtering after the reaction is finished so as to separate the catalyst, carrying out vacuum distillation on the filtrate, recovering the solvent to obtain, and further conducting rectification under vacuum to obtain a finished chiral carvone product. The catalyst is a carbon-based composite catalyst. According to the method, the carvone is synthesized by taking chiral 8-hydroxycarvone as a raw material; the method is a brand-new chiral carvone synthesis method; thecomprehensive utilization of existing levo-8-hydroxycarvone is realized; the application range of 8-hydroxycarvone is expanded; and the production cost of the levo-carvone is reduced.
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Description

technical field

[0001] The invention belongs to the technical field of chemical industry and relates to a chemical synthesis method, in particular to a method for synthesizing chiral carvone with chiral 8-hydroxy carvone.

[0002] technical background

[0003] L-carvone (D-Carvone) is an important spice with the aroma of parsley, dill seeds and black bread, widely used in food industry and chemical industry, especially in toothpaste, hard candy, chewing gum and various beverages middle. Carvone generally refers to spearmint oil, also known as peppermint herb oil, spearmint oil or spearmint oil, and its main component is L-carvone. Its usage continues to grow, especially in China, and its synthesis method has always been concerned by researchers.

[0004] At present, the naturally extracted carvone is in the form of mixed rotation, but limited by natural conditions, seasons and regions, the output is small and the price is expensive. The synthesis is also based on the mixed...

Claims

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