Adding a certain compound to certain chemical reactions, such as: 20154-03-4, name is 3-(Trifluoromethyl)-1H-pyrazole, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 20154-03-4, 20154-03-4
An acetonitrile solution (20 ml) of 3-trifluoromethyl-lH-pyrazole (0.5 g), dicerium ammonium nitrate (1.0 g) and N-chlorosuccinimide (0.7 g) was refluxed for 3 hours. After cooling, the reaction solution was washed with saturated aqueous solution of sodium thiosulfate and saturated aqueous solution of sodium chloride. After drying an organic layer with magnesium sulfate, the solvent was distilled off under the reduced pressure to obtain 4-chloro-3-trifluoromethyl-lH-pyrazole (0.9 g). ‘H-NMR (CDCl3, ppm): 7.80 (1H, s).
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