Thionyl Chloride → HCID 57785791, compound

Participants

Reaction Steps

To a solution of 9-chloro-1-(2,4-dichloro-6-methylphenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole-6-carboxamide (850 mg 2.07 mmol) in N,N-dimethylformamide (10 mL) was added thionyl chloride (0.448 mL, 6.21 mmol). The resultant mixture was stirred at 50° C. for 30 min and poured into saturated aqueous sodium hydrogen carbonate at 0° C. The resultant precipitate was collected by filtration, washed with water and diisopropyl ether to give the title compound as a colorless solid (532 mg, 1.39 mmol, 67%).

Provenance & Evidence