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Peonile synthesis method

A synthesis method, the technology of peony nitrile, applied in chemical instruments and methods, preparation of carboxylic acid nitrile, preparation of organic compounds, etc., can solve the problems of large market demand, no synthesis process, high price, etc., and achieve high selectivity, The reaction has fewer reaction steps and the effect of reducing the occurrence of side reactions

Inactive Publication Date: 2018-04-24
江苏馨瑞香料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the characteristics of stable performance and good aroma effect of peony nitrile, the market demand is large and the price is expensive, but there is no disclosure of relevant synthesis processes in the existing market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Add 1800Kg cyclohexanone, 2000Kg phenylacetonitrile and 1600Kg mass fraction of 48% NaOH solution into the reactor, stir well and then add 20Kg of tetrabutylammonium bisulfate into the reactor to increase the cooling of the reactor The amount of water, the reaction temperature is maintained at 41 ° C ~ 49 ° C, and the reaction is completed until the content of phenylacetonitrile is 1%. After the reaction, it is washed with acid and washed twice. After recovering the solvent, 3548Kg of the crude product of peony nitrile is obtained, and the content of the peony nitrile is 87.3% according to chromatographic analysis. , the reaction selectivity was 94.5%, and the reaction yield was 91.9%.

Embodiment 2

[0018] Add 1800Kg cyclohexanone, 2000Kg phenylacetonitrile and 1600Kg mass fraction of 48% NaOH solution into the reactor, stir well and then add 20Kg of tetrabutylammonium bisulfate into the reactor to increase the cooling of the reactor The amount of water, the temperature rises rapidly during the reaction, and then add 2000Kg cyclohexane, the reaction temperature is maintained at 37 ° C ~ 44 ° C, and the reaction is completed until the content of phenylacetonitrile is 0.6%. Obtain 3423Kg of peony nitrile crude product, the chromatographic analysis of the peony nitrile content is 92.5%, the reaction selectivity is 96.2%, and the reaction yield is 94%.

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Abstract

The invention provides a peonile synthesis method. The peonile synthesis method includes that cyclohexanone and benzyl cyanide are subjected to reaction in an inorganic alkali solution under a catalytic action of tetrabutylammonium hydrogen sulfate. The peonile synthesis method has advantages of technical simplicity, mild reaction conditions, high reaction selectivity and high yield.

Description

technical field [0001] The present invention relates to a kind of synthetic method of petaninil. Background technique [0002] The chemical name of peony nitrile is 2-cyclohexene-2-phenylacetonitrile, which has the aroma characteristics of geranium-rose, and can be used in floral, fougere or orange peel formulations to bring interesting aroma effects to the formulation. Moutanil has a strong effect and is less volatile than other raw materials, so it has very stable performance in various media. Moutanil has good stability in various fragrance formulas used for dry and wet fabric care. It can increase the fullness and durability of fragrance for various functional fragrance formulas. It is often used in high-end fragrances, beauty products, soaps, Fabric care and household items. [0003] In view of the characteristics of stable performance and good aroma effect of petanyril, the market demand is large and the price is expensive, but there is no disclosure of related synth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C253/30C07C255/33
Inventor 应思斌应登宇赵建标席建忠翁卫栋
Owner 江苏馨瑞香料有限公司
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