1,4-Dioxane → HCID 56651011, compound

Participants

Reaction Steps

The mixture of 4-(3-bromophenyl)-1H-benzo[h]quinazolin-2-one (950 mg, 2.71 mmol), 1,4-dioxane (95 mg, 1.08 mmol), sodium tert-butoxide (650 mg, 6.76 mmol), benzophenone imine (681 μL, 4.06 mmol), and (±)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (101 mg, 0.16 mmol) was heated under reflux for 16 hours under N2 atmosphere. The solvent was removed under reduced pressure. To the residue was added methanol (50 mL) and 2M hydrochloride (50 mL), and stirred at room temperature for 16 hours. The reaction mixture was filtered to give the titled compound as a yellow solid (191 mg, yield 25%).

Provenance & Evidence