Tetrahydrofuran → 3,5-Dimethyl-2-[4-(4-nitrobenzoyl)benzyl]thio-4(3H)-quinazolinone

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Reaction Steps

To a solution of 3,5-dimethyl-2-mercaptoquinazolin-4-one (2.03 g, 9.74 mmol) in EtOH (30.0 ml)-THF (30.0 ml) was added 1N-aqueous sodium hydroxide solution (10.0 ml). Then, 4-(4-nitrobenzoyl)benzyl bromide (3.50 g, 10.9 mmol) was added and the mixture was stirred at room temperature overnight. The solvent was then distilled off and the residue was dissolved in ethyl acetate and washed with saturated aqueous NaCl solution. The organic layer was dried over MgSO4 and concentrated under reduced pressure. The residue was recrystallized from methanol to provide light-yellow needles.

Provenance & Evidence