1,3-phthalonitrile preparation method
A purpose of the present invention is to provide a 1,3-phthalonitrile preparation method. According to the present invention, N,N-dimethylformamide is adopted as a solvent, cuprous bromide is adopted as a catalyst, 1,3-dibromobenzene reacts with potassium ferrocyanide trihyrate, and filtration and p...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A purpose of the present invention is to provide a 1,3-phthalonitrile preparation method. According to the present invention, N,N-dimethylformamide is adopted as a solvent, cuprous bromide is adopted as a catalyst, 1,3-dibromobenzene reacts with potassium ferrocyanide trihyrate, and filtration and precipitation crystallization are performed to prepare the high content 1,3-phthalonitrile; and the reaction yield is high, the post-treatment operation is simple, and the good industrial application values are provided. |
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