Method for synthetizing 2, 4-butane sulfonic acid lactone

A kind of technology of butane sultone and synthesis method, which is applied in the field of preparation method of sultone derivatives, and can solve the problems of complicated process and low yield, etc.
CN102807552AInactive Publication Date: 2012-12-05FUJIAN CHUANGXIN TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
FUJIAN CHUANGXIN TECH DEV CO LTD
Publication Date
2012-12-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing 2, 4-butane sulfonic acid lactone by using butenol (crotyl alcohol) as raw materials, sulfonating the butenol to be hydroxy butane sulfonate with hydrosulphite, acidizing the hydroxy butane sulfonate to be hydroxy butane sulfonic acid, and finally dehydrating in vacuum at high temperature. The method is low in cost, mild in conditions, simple and convenient to operate, easy to control and high in yield, and is a synthetizing process suitable for industrialization, and raw materials are easy to obtain.
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Description

technical field

[0001] The invention relates to a method for preparing sultone derivatives, in particular to a method for synthesizing 2,4-butane sultone. Background technique

[0002] Derivatives of sultones such as amines, alcohols, phenols, thiols, and thiamines are very effective detergents, lubricants, foaming agents, antibacterial agents, and antistatic additives for polyamide fibers, and are widely used in dyes Gluing and dyeing and finishing in industrial and textile industries, additives for photosensitive materials and lithium-ion battery electrolytes, etc.

[0003] 2,4-butane sultone is a typical sulfoalkylation reagent. According to different starting materials, there are generally two methods for preparing 2,4-butane sultone:

[0004] (1) Synthetic route using butylene chloride as raw material:

[0005] First, sulfur dioxide is used to sulfonate butene into chlorobutanesulfonic acid, and finally dehydrochlorination and cyclization into 2,4-butane sultone. The ...

Claims

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