Watermelon ketone synthesizing process

A synthetic process, the technology of watermelon ketone, applied in the field of synthetic watermelon ketone, to achieve the effect of reducing production cost, low boiling point, and environmental protection
CN101962378BInactive Publication Date: 2013-01-23CHONGQING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHONGQING UNIV
Publication Date
2013-01-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a watermelon ketone synthesizing process, and belongs to the technical field of essence and spice synthesis. The watermelon ketone synthesizing process comprises the following steps of: performing replacement reaction on methyl bromoacetate and potassium iodide serving as a catalyst; performing Williamson condensation reaction and posttreatment; performing Dieckmann intramolecular condensation reaction and posttreatment; and finally performing drolysis and decarboxylation reaction and posttreatment to obtain the watermelon ketone product. The watermelon ketone synthesizing process has the characteristics of high yield, product purity of 99.5 percent, mild reaction temperature, simple separation process, low production cost, convenient promotion and application and the like. The watermelon ketone synthesizing process can be widely applied to producing watermelon ketone; and the watermelon ketone synthesized by the process can be widely used as an essence and spice for products such as medicines, foods, and washing chemicals.
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Description

technical field

[0001] The invention belongs to the technical field of flavor and fragrance synthesis, and in particular relates to a process for synthesizing watermelon ketone by using potassium iodide as a catalyst. Background technique

[0002] Watermelon ketone not only has fresh, fruity, seaweed and other special fragrances, but also has no toxic and side effects, and is widely used in the fragrance of medicine, food, washing and other products. Therefore, watermelon ketone is a high value-added fine chemical. In recent years, the market demand has increased year by year, and the market prospect is broad.

[0003] Existing watermelon ketone synthesis methods, such as "a novel synthetic route of benzodioxpinone congeners that can be assessed by qualitative olfactory methods" ("HELVETICA CHEMICA ACTA"), 2007, volume 90 ( "Synthesis of Benzodioxepinone Analogues via a Novel SyntheticRoute with Qualitative Olfactory Evaluation"), the method disclosed is: use 4-methylcatech...

Claims

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