Tetrafluoroboric acid → HCID 86590979, compound

Participants

Reaction Steps

To a solution of 2-amino-5-(thiocyanato)benzonitrile (2.00 g (11.4 mmol)) and 42% borofluoric acid (7.16 g (34.2 mmol)) in ethanol (10.0 ml), a solution of sodium nitrite (0.87 g (12.6 mmol)) in water (1.2 ml), was added dropwise under cooling with ice. The mixture was stirred under cooling with ice for 2 hours and crystals separated were filtered. The solid was washed with water, methanol and then ether, successively, and dried under reduced pressure to give 2.98 g (95%) of 2-cyano-4-(thiocyanato)benzenediazonium fluoroborate as white crystals.

Provenance & Evidence