A kind of method for preparing hinoki alcohol

A technology of asphalt alcohol and ethanol, which is applied in the field of industrialization and high-purity preparation, can solve the problems of high price, strict equipment and process requirements, and easy formation of dimers, so as to solve safety problems and avoid isomerization Body, the effect of eliminating potential safety hazards
CN109134229BActive Publication Date: 2020-09-04INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
Publication Date
2020-09-04

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Abstract

The invention discloses a method for preparing hinokitiol. The method includes the steps of conducting an addition reaction on bromoform and an initial raw material compound, namely cyclohexene, to obtain a first compound, namely 7,7-dibromo bicyclo[4.1.0]heptane; the first compound is subjected to an oxidization reaction to obtain a second compound, namely 3,7,7-tribromo bicyclo[4.1.0]heptyl-2-ketone; the second compound is subjected to a substitution reaction to obtain a third compound, namely 7,7-dibromo-3-hydroxy bicyclo[4.1.0] heptyl-3-alkene-2-ketone; the third compound is subjected to aring enlargement reaction to obtain a fourth compound, namely 4-bromo-2-hydroxy cycloheptyl-2,4,6-triene-1-ketone; the fourth compound is subjected to an alkylation reaction to obtain hinokitiol.
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Description

technical field

[0001] The invention relates to the technical field of preparation of cypress alcohol, in particular to the industrialization and high-purity preparation method of cypress alcohol. Background technique

[0002] Hinokitiol, also known as Hinokitiol or Hinokitiol (β-Thujaplicin), is a natural compound of monoterpene with a seven-ring tropolone skeleton extracted from Chinese Taiwan cypress and Japanese Aomori cypress. Tropolone compounds have good broad-spectrum antibacterial properties, moisture retention and pest repelling effects, are high-safety plant components, and can be used as raw materials for the preparation of antibacterial and insect repellents. As the main component of Taiwanese cypress essential oil, it has a wide range of biological activities and strong bactericidal ability. For general bacteria, its minimum inhibitory concentration is 10-100ppm, and it has a fragrant smell and good effect. It can not only kill bacteria in the air , mold, and ...

Claims

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