Reference of 1953-99-7,Some common heterocyclic compound, 1953-99-7, name is 3,4,5,6-Tetrachlorobenzene-1,2-dicarbonitrile, molecular formula is C8Cl4N2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
With molar ratio: tetrachlorophthalonitrile, anhydrous potassium fluoride, N, N-dimethylformamide = 1.0: 4.0: 20.Tetrachlorophthalic phthalonitrile, anhydrous potassium fluoride, N, N-dimethylformamide into chemical reactor, with stirring by increasing the temperature tetrachloro phthalonitrile, anhydrous potassium fluoride was dissolved in N, N-dimethylformamide and the temperature was raised to 110 , maintaining this temperature for 7 hours the stirring was stopped after the reaction, cooling to room temperature, to obtain a liquid mixture; chemical reactor a liquid mixture in a distillation column, the distillate is tetrafluorophthalonitrile, forthwith fed into the dryer, drying at a temperature of 60 for 2.0 hours and then was fed into the drying mill, pulverized into a powder that is finished.
The synthetic route of 1953-99-7 has been constantly updated, and we look forward to future research findings.