反应详情

p-Toluene sulphonyl hydrazine hydrate (390 mg, 2.1 mmol) was added to a solution of 4-chloro-8-nitro-quinazoline 477 (400 mg, 1.91 mmol) in DCM at (10 ml) and the mixture was stirred at room temperature for 24 h. The mixture was concentrated in vacuo and washed with Et20 to give the title compound (650 mg, 95%).

1. concentrationThe mixture was concentrated in vacuo
2. washwashed with Et20