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Technique based on vacuum and high temperature conditions to synthesize linalyl acetate

A technology of linalyl acetate and high temperature, which is applied in the field of synthesizing linalyl acetate based on vacuum and high temperature conditions, to achieve the effect of increasing the speed

Inactive Publication Date: 2018-08-07
江西依思特香料有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The object of the present invention is to provide the technology based on the synthesis of linalyl acetate under vacuum and high temperature conditions, to solve existing technical defects and unreachable technical requirements

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  • Technique based on vacuum and high temperature conditions to synthesize linalyl acetate

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0015] The invention provides a technical scheme: based on the technology of synthesizing linalyl acetate under vacuum and high temperature conditions, linalyl acetate is synthesized by natural linalool and acetic anhydride, and its synthesis steps are as follows:

[0016] Step 1: The preparation of raw materials is put into the reactor at a ratio of 1:1, and 0.8-1.5% of the total amount of reactants is added to the reactor as a catalyst of potassium carbonate;

[0017] Step 2: Lead the prod...

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Abstract

The invention discloses a technique based on vacuum and high temperature conditions to synthesize linalyl acetate. Linalyl acetate is synthesized from natural linalool and acetic anhydride via the steps of I, adding materials into a reactor in the ratio of 1:1, adding potassium carbonate accounting for 0.8-1.5% of total quantity of the reaction materials into the reactor as a catalyst; II, importing the generated product into a washing kettle, and adding an alkaline solution into the washing kettle; III, rectifying. The technique based on vacuum and high temperature conditions to synthesize linalyl acetate has the advantages that esterification is carried out under vacuum and high temperature; the esterification is reversible; pressure and temperature may effectively inhibit reverse reaction of the generated product and increase the speed of forward reaction; potassium carbonate is used as the catalyst during reacting so that the yield of product reaches 70% and above.

Description

technical field [0001] The invention relates to the technical field of linalyl acetate production equipment, in particular to a technology for synthesizing linalyl acetate based on vacuum and high temperature conditions. Background technique [0002] Linalyl acetate, also known as linalyl acetate, agarwood acetate, chemical name 3,7-dimethyl-1,6-octadien-3 alcohol acetate, colorless liquid with lavender-orange leaf aroma, is Indispensable spices for the preparation of high-end flavors. It is difficult to extract linalyl acetate from natural plants, and the output is far from meeting the increasing demand of daily cosmetics and high-end products. The production yield of traditional linalyl acetate production equipment is low, and the reverse reaction cannot be effectively suppressed. Contents of the invention [0003] The object of the invention is to provide the technology based on the synthesis of linalyl acetate under vacuum and high temperature conditions, to solve ex...

Claims

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Application Information

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IPC IPC(8): C07C69/145C07C67/08C07C67/54
CPCC07C67/08C07C67/54C07C69/145
Inventor 徐国平李国进饶昀
Owner 江西依思特香料有限公司
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