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Triple refined peppermint titanate-ethyl ester, and preparation and application methods thereof

A technology of trimenthyl titanate and tetraethyl titanate, which is applied in the field of trimenthyl titanate monoethyl titanate and its preparation and application, and can solve the problems of low yield and large steric hindrance

Active Publication Date: 2013-11-27
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since menthol belongs to secondary alcohol, and the steric hindrance is large, if the traditional solvent water separation esterification method is used, the yield is low

Method used

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  • Triple refined peppermint titanate-ethyl ester, and preparation and application methods thereof
  • Triple refined peppermint titanate-ethyl ester, and preparation and application methods thereof
  • Triple refined peppermint titanate-ethyl ester, and preparation and application methods thereof

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Experimental program
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Embodiment 1

[0021] In a 250ml three-neck flask equipped with stirring, water separator, and condenser, add 22.8g (0.1mol) tetraethyl titanate, 54.6g (0.35mol) menthol, 0.15g strongly acidic cation exchange resin, under stirring Slowly raise the temperature to 135°C, keep it for 1 hour, then raise the temperature to 150°C, continue the reaction for 5 hours, separate the ethanol generated by the reaction through the water separator, and judge the end point of the reaction according to the amount of ethanol produced by the reaction (the end point of the reaction The molar number of ethanol that is generated for the reaction is 3 times of the molar number of raw material menthol), after the reaction is completed, cool, filter and remove the cation exchange resin, and the filtrate is desolvated by distillation under reduced pressure, and separation and purification obtains 42.8g of yellow liquid, producing The rate is around 76.7%.

[0022] Synthetic result characterization data:

[0023] Nuc...

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Abstract

The invention provides a novel triple refined peppermint titanate-ethyl ester compound, and preparation and application methods thereof. The preparation method comprises the following steps that: tetraethyl titanate and menthol are mixed according to the mol ratio of 1 / 3 to 1 / 4, the reaction temperature is between 135 DEG C and 155 DEG C, the reaction time is 5 to 7 hours, catalysts can be molecular sieves, metallic oxide solid alkali, strongly acidic cation exchange resin or alkaline anion exchange resin, and the target compound is obtained. The triple refined peppermint titanate-ethyl ester compound has the purpose of coolant agents, can be added to tobacco for improving the smoking smell, can also be used as culicifuge to be added into water for eliminating insect ova and bacteria and can also be used as daily perfuming disinfectants.

Description

technical field [0001] The invention relates to a new titanate compound trimenthyl monoethyl titanate and its preparation and application method. Background technique [0002] Menthol is obtained by distilling the flowers, leaves, and roots of menthol-containing plants, and can also be synthesized by chemical or biochemical methods. The application of menthol in medicine and health accounts for a large proportion, followed by spices such as tobacco spices, toothpaste essence, toilet water, etc. It can also be used as a flavoring agent for various foods, such as for the preparation of candy, chewing gum, cakes, fruit wine and refreshing drinks etc. [0003] Cooling agent is a general term for all chemical substances that can produce a cooling effect and are not strong in medicinal properties. The most common cooling agent is menthol, which is an important raw material in the fields of medicine, food, and light industry due to its special fragrance and cool taste, but mentho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F7/28A24B15/34A01N55/02A01P17/00A01P7/04A01P1/00
Inventor 任建新穆小丽罗嘉银董红杜文
Owner CHINA TOBACCO HUNAN INDAL CORP
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