反应详情

To a stirred mixture of 4-formyl-2-fluoro-1-triphenylmethylimidazole (0.356 g.) and hydroxylamine hydrochloride (0.035 g.) in ethanol (4 ml.) was added pyridine (0.2 ml.). Stirring was continued at ambient temperature for 18 hours and the precipitated solid was filtered to give 2-fluoro-4-hydroxyiminomethyl-1-triphenylmethylimidazole, m.p. 147°-149°. Further amounts of product could be isolated from the mother liquors.

1. filtrationthe precipitated solid was filtered