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Isolongifolanone synthesis technology

A kind of technology of isolongifolinone and isolongifolene, which is applied in the field of isolongifolinone production equipment

Inactive Publication Date: 2018-08-03
江西依思特香料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide the synthetic technology of isolongifolanone, to solve existing technical defects and unreachable technical requirements

Method used

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Embodiment Construction

[0013] 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.

[0014] The present invention provides a technical solution: the synthesis technology of isolongifolanone, isolongifolanone is made from isolongifolan and hydrogen peroxide as raw materials, and the production steps are as follows:

[0015] Step 1: preparation of raw materials: the mass ratio of isolongifolene and formic acid is 1:0.3, hydrogen peroxide with a concentration of 30% is taken, the mass ratio of hydrogen peroxide and isolongifolene is 0.6:1, and formic acid is used as a catalyst; ...

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PUM

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Abstract

The invention discloses an isolongifolanone synthesis technology, wherein isolongifolanone is prepared by using isolongifolene and hydrogen peroxide as raw materials. The preparation steps comprise: 1, preparation of raw materials, wherein a mass ratio of isolongifolene to formic acid is 1:0.3, hydrogen peroxide with a concentration of 30% is taken, a mass ratio of hydrogen peroxide to isolongifolene is 0.6:1, and formic acid is used as a catalyst; 2, extracting, wherein the raw materials and the catalyst are introduced into a reaction pot, a reaction is performed, cyclohexane is added to thereaction kettle after the reaction is completed, and extraction is performed; and 3, fractionation, wherein methanol and a sodium hydroxide solution are added to the upper layer organic matter extracted from the reaction kettle, the crude isolongifolanone is introduced into a fractionation tower, and fractionation is performed to obtain the finished product. According to the present invention, thehydrogen peroxide is slowly added into the reaction kettle in a dropwise manner, and the formic acid is used as the catalyst to accelerate the reaction speed of the isolongifolene and the hydrogen peroxide; and the cyclohexane is added to the reaction kettle and is used as the extractant, such that the yield of the product can reach more than 85%.

Description

technical field [0001] The invention relates to the technical field of isolongifolanone production equipment, in particular to the synthesis technology of isolongifolanone. Background technique [0002] Isophylone, also known as isolongifolone, chemical name 1,3,4,6,7,8a-hexahydro-1,1,5,5-tetramethyl-2H-2,4a-methylene -8(5H)-Naphthone, with long-lasting amber and woody aroma, can be used in various daily fragrances. Through reduction and esterification, isolongifolanone can be made into other isolongifolene derivatives. The traditional equipment for making isolongifolanone is to directly pour hydrogen peroxide into the reaction kettle, resulting in uneven reaction between isolongifolene and hydrogen peroxide, and the effect of the catalyst and extractant used in the traditional production of isolongifolanone is relatively low. Difference. Contents of the invention [0003] The purpose of the present invention is to provide the synthetic technology of isolongifolanone, t...

Claims

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Application Information

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IPC IPC(8): C07C45/28C07C49/453
CPCC07C45/28C07C49/453
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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