Potassium Fluoride → HCID 12850199, compound

Participants

Reaction Steps

To a solution of 46 g of 2,3,7-trichloro-6-quinoxalinesulfonyl chloride in 200 ml of methylene chloride were added 0.42 g of benzyltriethylammonium bromide and a solution of 20.2 g of potassium fluoride in 20.9 ml of water. The resulting mixture was stirred for 17.5 hours at ambient temperature, filtered, dried over magnesium sulfate, treated with activated carbon and filtered again. Solvent was removed under vacuum, leaving a yellowish solid which was recrystallized from hexane to provide 35 g of 2,3,7-trichloro-6-quinoxalinesulfonyl fluoride as a light-yellow solid, having a melting point of 111°-113°.

Provenance & Evidence