Efficient and green synthesis method of 2-phenylamino-3-methyl-6-dibutylaminofluorane
The invention discloses an efficient and green synthesis method of 2-phenylamino-3-methyl-6-dibutylaminofluorane, which is characterized by comprising the following steps: S1, condensation; and S2, hydrolysis. The preparation method mainly comprises the following steps: by taking 4-dibutylaminoketon...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
15.04.2022
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses an efficient and green synthesis method of 2-phenylamino-3-methyl-6-dibutylaminofluorane, which is characterized by comprising the following steps: S1, condensation; and S2, hydrolysis. The preparation method mainly comprises the following steps: by taking 4-dibutylaminoketonic acid as a raw material, xylene as a solvent and p-toluenesulfonic acid as a phase transfer catalyst, carrying out condensation reaction with 2-methyl-4-methoxydiphenylamine, then adding a sodium hydroxide (or potassium hydroxide or calcium hydroxide) aqueous solution, carrying out hydrolysis reaction, standing for layering after the reaction is finished, and removing a water layer, thereby obtaining the 2-methyl-4-methoxydiphenylamine. And adding water to recover methylbenzene, separating out a product, and carrying out filter pressing and drying to obtain the 2-phenylamino-3-methyl-6-dibutylaminofluorane. In the whole production process, the reaction conversion rate is high, solid waste and the like are basical |
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Bibliography: | Application Number: CN202210069952 |