Water → HCID 10725977, compound

Sodium 2-pyridinesulfonate (1 mmol) was added to 2.2 ml of a solvent mixture containing water and acetonitrile (1:10). A gas mixture containing fluorine gas and nitrogen gas (1:9) was then introduced into the resultant mixture at -25° C. and at a flow rate of 30 ml/min. The amount of the fluorine introduced was 9 mmol. After the reaction, 20 ml of tetrahydrofuran was added to the reaction solution, and the separated precipitate was filtered off. The thus-formed precipitate was extracted with acetonitrile, and the solvent was then removed by distillation to provide 68 mg (38 percent) of N-fluoropyridinium-2-sulfonate. The spectral data of the product was the same as that obtained in Example 1.

1. additionwas added to the reaction solution
2. filtrationthe separated precipitate was filtered off
3. extractionThe thus-formed precipitate was extracted with acetonitrile
4. customthe solvent was then removed by distillation

ORD record

ord-eb0e8e9a83ab482999164366564fcf6d

Source dataset

uspto-grants-1992_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05081249