- Synthetic method and application of phenothiazine and/or derivative thereof
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The invention discloses a synthetic method for phenothiazine and/or a derivative thereof. The synthetic method comprises the following steps: mixing diphenylamine and/or a diphenylamine derivative, sulphur and a solid acid catalyst; then subjecting the obtained mixture to full reaction in a protective atmosphere; and then carrying out post-treatment so as to obtain phenothiazine and/or the derivative thereof. The invention also discloses application of phenothiazine and/or the derivative thereof. The synthetic method for phenothiazine and/or the derivative thereof is a safe, energy-saving, green and environment-friendly process which is simple to operate, mild in reaction conditions, short in reaction period, convenient to control, high in process security, low in production energy consumption and high in yield; the prepared phenothiazine and/or the derivative thereof has high purity; water, organic solvents and the like are not needed in the reaction process; post-treatment is simple; raw materials, the solid acid catalyst and the like are widely and easily available and cheap; the solid acid catalyst can be recovered and reused; and the method has low cost and is applicable to large scale production.
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Paragraph 0065
(2016/11/24)
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