Hydrochloric Acid → HCID 12221869, compound

Participants

Reaction Steps

To a solution of 3-cyano-2-imino-4-phenyl-2H-chromene (90 mg, 0.37 mmol) in methanol (10 mL) was added 37% HCl (0.037 ml, 0.37 mmol). The mixture was stirred at room temperature for 2 h. The solvent was evaporated and the residue was purified by chromatography on silica gel with ethyl acetate and hexane (1:2) as eluant, yielding 35 mg (39%) of the title compound. 1H NMR (CDCl3): 7.80-7.74 (m, 1H), 7.66-7.60 (m, 3H), 7.57-7.54 (m, 1H), 7.47-7.44 (m, 2H), 7.41-7.32 (m, 2H).

Provenance & Evidence