Methanol → HCID 57786239, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl 9-bromo-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole-6-carboxylate (200 mg, 0.439 mmol), sodium methoxide (237 mg, 4.39 mmol), copper(I) iodide (100 mg, 0.525 mmol), Methanol (1.8 mL) and N,N-dimethylformamide (2.6 mL) was stirred at 100° C. for 4 hr. The reaction was quenched by aqueous saturated ammonium chloride, and the mixture was extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 10-40% ethyl acetate/n-hexane gradient mixture to give the title compound as a colorless solid (54.4 mg, 0.134 mmol, 31%).

Provenance & Evidence