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Preparation method of sulfonate alkane ester

A technology of sulfonate alkane ester and sulfonate alkane carboxylic acid, which is applied in the chemical field, can solve the problems of long reaction time and unsatisfactory synthesis effect, and achieve the effects of fast reaction speed, good photolithographic pattern quality, and high purity

Active Publication Date: 2022-04-12
NINGBO NATA OPTO ELECTRONICS MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a preparation method of sulfonate alkane ester, which aims to solve the problem of long reaction time, catalyst needed in the reaction system, additional process to remove the catalyst in post-treatment, and unsatisfactory synthesis effect in the traditional preparation method. technical flaw

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  • Preparation method of sulfonate alkane ester

Examples

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Effect test

Embodiment 1

[0033] Embodiment 1 A kind of preparation method of sulfonate alkane ester

[0034] Include the following steps:

[0035] (1) Sodium sulfonate acetic acid and methanol were placed in a four-neck flask filled with toluene, and stirred until dissolved to obtain a reaction solution. The mass ratio of the sodium sulfonate acetic acid, methanol and toluene consumption is: 81:12:200.

[0036] (2) Place the four-necked flask in a microwave reactor, and slowly feed nitrogen into the four-necked flask for 30 minutes to get rid of the oxygen in the bottle;

[0037] (3) After raising the temperature of the reaction solution in the four-neck flask to 110°C, turn on the microwave, and control the microwave frequency to 300GHz to carry out the esterification reaction; control the microwave time to 1h, and turn off the microwave reactor after 1h to end the reaction;

[0038] (4) Take out the four-neck flask in the microwave reactor to remove impurities. The impurity removal: the reaction ...

Embodiment 2

[0041] Embodiment 2 A kind of preparation method of sulfonate alkane ester

[0042] Include the following steps:

[0043] (1) Sodium sulfonate acetic acid and methanol were placed in a four-neck flask filled with toluene, and stirred until dissolved to obtain a reaction solution. The mass ratio of the sodium sulfonate acetic acid, methanol and toluene consumption is: 81:12:200.

[0044] (2) Place the four-necked flask in a microwave reactor, and slowly feed nitrogen into the four-necked flask for 30 minutes to get rid of the oxygen in the bottle;

[0045] (3) After raising the temperature of the reaction solution in the four-neck flask to 100°C, turn on the microwave, and when the microwave frequency is set to 300GHz, carry out the esterification reaction; control the microwave time to 1h, and turn off the microwave reactor after 1h to end the reaction;

[0046] (4) Take out the four-neck flask in the microwave reactor to remove impurities. The impurity removal: pour the re...

Embodiment 3

[0049] Embodiment 3 A kind of preparation method of sulfonate alkane ester

[0050] Include the following steps:

[0051] (1) Place sodium sulfonate acetic acid and methanol in a four-necked flask filled with toluene, and stir until dissolved; a reaction solution is obtained. The mass ratio of the sodium sulfonate acetic acid, methanol and toluene consumption is: 81:12:200.

[0052] (2) Place the four-necked flask in a microwave reactor, and slowly feed nitrogen into the four-necked flask for 30 minutes to get rid of the oxygen in the bottle;

[0053] (3) After the temperature of the reaction solution in the four-neck flask was raised to 60°C, when the microwave frequency was set to 300GHz, the microwave was turned on to carry out the esterification reaction; the microwave time was controlled to be 1h, and the microwave reactor was turned off after 1h to end the reaction;

[0054](4) Take out the four-neck flask in the microwave reactor to remove impurities. The impurity re...

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Abstract

The invention provides a sulfonate alkane ester preparation method, which comprises: dissolving sulfonate alkane carboxylic acid and alcohol in an organic solvent to form a reaction liquid; under a nitrogen protection condition, heating the reaction liquid to a specific temperature, starting microwaves, and carrying out an esterification reaction under a microwave condition. According to the preparation method disclosed by the invention, on the premise of not adopting a catalyst, the reaction time is shortened, and meanwhile, the reaction conversion rate of the sulfonate alkane carboxylic acid and alkane alcohol or aromatic alcohol and the purity of the product sulfonate alkane ester are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of chemistry, in particular to a preparation method of alkane sulfonate. Background technique [0002] As a photosensitive material, photoresist is a key processing material for integrated circuit fine processing technology. Among them, sulfonate alkane ester, as a part of the photoresist composition, determines the performance of the photoresist, and is currently a hot spot in the research of photoresist materials. [0003] After determining the structure of the photosensitizer, the anionic ligand sulfonate alkane ester functional group of different photosensitizers determines the performance of the photoresist, and the ester group of the anion part directly affects a very important part of the photoresist. The performance index: the distance of photoacid diffusion, so the research on the esterification of sulfonate alkane esters is of great significance. Therefore, in order to meet the requirements of ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C303/32C07C309/17
Inventor 夏力顾大公马潇陈鹏许从应毛智彪
Owner NINGBO NATA OPTO ELECTRONICS MATERIAL CO LTD
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