Production process of m-tert-butylphenethyl ether

A technology of tert-butylphenetole and m-tert-butylbenzene, which is applied in the field of m-tert-butylphenetole production technology, can solve the problems of increased maintenance, labor cost, increased reaction risk, unfavorable environmental protection production, etc., and achieves increased The utilization rate of equipment investment, the effect of reducing equipment investment and increasing production capacity

Inactive Publication Date: 2021-04-16
湖北易普乐生物科技股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the first method, this method has lower production costs, but involves special equipment, which increases the risk of reaction
Compared with the existing invention process, it is still due to the shortcomings brought about by the two rectifications, such as low yield and high investment, which is not conducive to environmental protection production, and additional maintenance and labor costs are added.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention provides a kind of m-tert-butylphenetole production process, comprising the following steps:

[0027] Step a: Add 100 parts by mass of p-tert-butylphenol and a catalyst of 1 part by mass to the upper reactor;

[0028] Step b: Close the lid of the upper reaction kettle, check that the sealing is good, raise the temperature to 80°C until the materials are basically dissolved, then open the agitator of the upper reaction kettle, continue to heat up to 100°C, and keep the temperature at 100°C for 5 hours;

[0029] Step c: After the reaction is completed, turn off the agitator, and lower the temperature to 60° C., then add 0.4 parts by mass of potassium carbonate to the upper reaction kettle through the special valve on the upper reaction kettle, and turn on the agitator again to stir for 10 minutes;

[0030] Step d: transfer the stirred mixed solution to a lower reactor containing 20 parts by mass of liquid caustic soda;

[0031] Step e: Turn on the agitator ...

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PUM

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Abstract

The invention discloses a production process of m-tert-butylphenethyl ether, which comprises the following steps: by using p-tert-butylphenol, a catalyst, diethyl sulfate and liquid caustic soda as reaction raw materials, preparing by a step-by-step feeding one-pot method. Compared with the current mainstream process route, the reaction has the advantages that the generation of byproducts and kettle residues is greatly reduced, the clean and environment-friendly production is facilitated, meanwhile, the economic burden of enterprises is reduced, and the generated target product is high in yield and purity. According to the preparation method, the conditions are easy to control, the product is separated once, and industrial operation is facilitated.

Description

technical field [0001] The invention relates to the field of organic synthesis, in particular to a production process of m-tert-butylphenetole. Background technique [0002] At present, there are two main synthesis processes of m-tert-butylphenetole in the market: [0003] The first kind: p-tert-butylphenol, catalyzer, phenol are added in the reaction kettle earlier, carry out temperature rise reaction, react to raw material: product=75:25, then regard reaction as finished, put reaction material into rectification column rectification, Obtain m-tert-butylphenol; then take the rectification product m-tert-butylphenol, diethyl sulfate, and liquid caustic soda to synthesize m-tert-butylphenetole, and conduct rectification again to obtain a qualified product. Because this method is rectifying twice and the boiling point of m-tert-butylphenol and p-tert-butylphenol are the same, so the first rectification cannot completely separate m-tert-butylphenol, and due to long-time high-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C41/16C07C41/34C07C41/42C07C37/00C07C39/06
Inventor 李宇宏赵浩
Owner 湖北易普乐生物科技股份有限公司
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