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Synthesis method of vulcanization accelerator 2-(morpholinyl thio) benzothiazole

A technology of benzothiazole and morpholine sulfur is applied in the synthesis field of vulcanization accelerator 2-benzothiazole, can solve the problems of low yield, use of chemical dose oxidant, etc., achieves fast reaction speed, reduces waste water discharge, high yield effect

Pending Publication Date: 2022-04-12
SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve problems such as low yield and the use of chemical dose oxidant in the synthetic technology of existing vulcanization accelerator 2-(mor

Method used

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  • Synthesis method of vulcanization accelerator 2-(morpholinyl thio) benzothiazole
  • Synthesis method of vulcanization accelerator 2-(morpholinyl thio) benzothiazole
  • Synthesis method of vulcanization accelerator 2-(morpholinyl thio) benzothiazole

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Example Embodiment

[0026] The present invention provides a synthetic method of 2- (morpholinylthio) benzothiazole, including the following steps:

[0027] (1) 2-mercaptophenyl thiazole, morpholine, electrolyte mixed with chloroform and water mixed with chloroform and water to obtain a mixed liquid, and the platinum sheet is an electrolyte material, and the energization reaction is carried out to obtain a reaction mixture;

[0028] (2) After the reaction mixture obtained by step (1), 2- (morpholinthylthio) benzothiazole was processed.

[0029] In one embodiment of the invention, in step (1), the electrolyte is potassium iodide.

[0030] In one embodiment of the invention, in step (1), 2-mercaptophenyltothiazole, morpholine, electrolyte, and mixed solvents of chloroform and water mixed solvents are 0.5 mmol: 1.0 mmol: 0.25 mmol: 3 ml.

[0031] In one embodiment of the invention, in step (1), in the mixed solvent of chloroform and water, the volume ratio of chloroform and water is 1: 1.

[0032] In one...

Example Embodiment

[0043] Example 1

[0044] This embodiment provides a 2- (morpholinylthio) benzothiazole and its electrochemical synthesis method.

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Abstract

The invention relates to the technical field of chemical synthesis, in particular to a synthesis method of a vulcanization accelerator 2-(morpholinyl thio) benzothiazole. The preparation method comprises the following steps: firstly, uniformly mixing 2-mercaptobenzothiazole, morpholine, electrolyte and a mixed solvent of chloroform and water to obtain a mixed solution, taking a platinum sheet as an electrolytic material, and carrying out electrifying reaction to obtain a reaction mixed solution; and then sequentially carrying out extraction, concentration, separation and purification on the reaction mixed solution to obtain the 2-(morpholinyl thio) benzothiazole. Compared with the prior art, the preparation method disclosed by the invention has the advantages of simplicity, convenience in operation, mild reaction conditions, environment friendliness and the like, and shows a good industrial application prospect.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a method for synthesizing a vulcanization accelerator 2-(morpholinothio)benzothiazole. Background technique [0002] As a general-purpose accelerator for natural rubber, synthetic rubber, and recycled rubber. Its vulcanization critical temperature is relatively high (130°C), and its activity increases when the temperature is above 140°C. It has significant aftereffect and is safe to operate. It can be used as a retarder in G-type chloroprene rubber, and as a vulcanization modifier in W-type chloroprene rubber. When used in latex, the vulcanization speed is slower, but it can reduce the tendency of early vulcanization of the EZ latex compound containing the accelerator. This product is easy to disperse in the rubber material and does not pollute, but has a bitter taste. It is not suitable for products in contact with food. It is mainly used in the manufacture of tires...

Claims

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Application Information

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IPC IPC(8): C07D277/80
Inventor 张兴华杨翔王根礼项翠灵蒋双飞
Owner SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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