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Synthetic method of cinnamic acid n-pentyl formate and application of cinnamic acid n-pentyl formate in essence

A technology of n-amyl cinnamate and a synthesis method, which is applied in the preparation of carboxylate, essential oils/fragrance, chemical instruments and methods, etc., can solve the influence of the quantity of varieties and product quality, the inability to meet the demand, the high price, etc. problem, to achieve the effect of small temperature gradient, uniform heating and high selectivity

Inactive Publication Date: 2014-10-08
TIANNING FLAVOR JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because natural animal and plant spices are often limited by natural conditions and processing factors, the number of varieties and product quality are affected to a certain extent.
(Limited resources, combined with relatively small proportion contained in organisms, low yield, high price, unable to meet demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of synthetic method of n-pentyl cinnamate, this synthetic route is divided into two steps, the first step solid superacid Ga2O3 / SO4 2- / ZrO2 synthesis, the second step is the synthesis of n-pentyl cinnamate. Using cinnamic acid and n-amyl alcohol as raw materials, according to a certain proportion of substances, adding a catalyst and reacting for a certain period of time under microwave conditions, the target product can be obtained.

[0015] The synthesis of the first step solid super acid is as follows:

[0016] Drop 0.5 mol / L Zr(NO3)4 solution into a vigorously stirred 5 mol / L ammonia solution, adjust the pH value of the suspension to 9-10 with ammonia water, then reflux at 100°C for 24 hours, and filter to obtain Precipitate, then wash and filter repeatedly with deionized water until the pH value is 7.0. Add the 30% Ga2(SO4)3 aqueous solution to the Zr(OH)4 precipitate in a certain proportion, stir for 10 hours, and then dry it at 120°C. Finally, it was ro...

Embodiment 2

[0019] A kind of synthetic method of n-pentyl cinnamate, this synthetic route is divided into two steps, the first step solid superacid Ga2O3 / SO4 2- / ZrO2 synthesis, the second step is the synthesis of n-amyl cinnamate. Using cinnamic acid and n-amyl alcohol as raw materials, according to a certain proportion of substances, adding a catalyst and reacting for a certain period of time under microwave conditions, the target product can be obtained.

[0020] The synthesis of the first step solid super acid is as follows:

[0021] Drop 0.5 mol / L Zr(NO3)4 solution into a vigorously stirred 5 mol / L ammonia solution, adjust the pH value of the suspension to 9-10 with ammonia water, then reflux at 100°C for 24 hours, and filter to obtain Precipitate, then wash and filter repeatedly with deionized water until the pH value is 7.0. Add the 30% Ga2(SO4)3 aqueous solution to the Zr(OH)4 precipitate in a certain proportion, stir for 10 hours, and then dry it at 120°C. Finally, it was roast...

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PUM

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Abstract

The invention discloses a synthetic method of cinnamic acid n-pentyl formate and an application of the cinnamic acid n-pentyl formate in essence. The synthetic method comprises the steps of performing catalyzed synthesis on cinnamic acid and n-pentyl formate serving as raw materials by utilizing microwave and Ga2O3 / SO42- / ZrO2 used as solid superacid to obtain cinnamic acid n-pentyl formate. The synthetic route has the advantages of simple production process, mild operation condition, low requirement on production equipment, low cost and easy availability of raw materials, high yield rate, non-toxicity and the like. The obtained cinnamic acid n-pentyl formate is used as a fixative for spices; the edible spices are mainly used for fixative in various kinds of fruit type essences. The cinnamic acid n-pentyl formate used as the fixative is used for daily use chemical essences with various fragrance types like carnation, hyacinth, tuberose, chypre, sandalwood, gardenia and lily of the valley.

Description

technical field [0001] The invention relates to a synthesis method and application of n-pentyl cinnamate disclosed. The synthesis is based on cinnamic acid and n-pentanol as raw materials, using microwave and solid superacid Ga2O3 / SO4 2- / ZrO2, the method of catalyzing the synthesis of n-amyl cinnamate. Background technique [0002] With the development of the national economy, people's life has gradually changed from subsistence to well-off, which provides a broad market for the development of spice industry products, especially natural spices are favored. However, because natural animal and plant spices are often limited by natural conditions and processing factors, the number of varieties and product quality are affected to a certain extent. (Resources are limited, coupled with relatively small proportions contained in organisms, low yields, and high prices, which cannot meet demand.) The innovation and quality improvement of flavors are also increasingly dependent on n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/08C07C69/618B01J27/053C11B9/00
CPCB01J27/135C07C67/08C11B9/0061C07C69/618
Inventor 吴义龙张贡博张树林徐正萍周春飞
Owner TIANNING FLAVOR JIANGSU
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