1421517-86-3Relevant articles and documents
Synthesis method of 4-fluoroisoquinoline sulfate
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Paragraph 0010-0012, (2020/12/30)
The invention discloses a synthesis method of 4-fluoroisoquinoline sulfate, the synthesis method comprises the following steps: S1: putting 1-bromine isoquinoline, an NFSI reagent and acetonitrile into a reaction kettle, sufficiently and uniformly stirring, starting the reaction kettle to enable the reaction temperature to be about 60-65 DEG C, and setting the reaction time to be 6-24 hours; afterthe reaction is finished, spin-drying the organic solvent in the reaction liquid through a vacuum rotary dryer, adding water into the reaction liquid, carrying out water-phase extraction work by using dichloromethane, and combining an organic phase; then adjusting the pH value of the organic phase by using a sodium bicarbonate solution, washing the organic phase by using a sodium chloride solution after the adjustment is finished, and carrying out vacuum spin-drying on the organic phase by using a vacuum rotary dryer so as to synthesize the 1-bromo-4-fluoroisoquinoline. The method is reasonable in design, the preparation steps of the isoquinoline compound can be shortened, the production and synthesis efficiency of the isoquinoline compound can be improved, and then the market requirements are met.