反应详情

To a solution of tetrahydroisoquinoline (3.99 g, 30 mmol) in triethyl amine (6 g, 60 mmol) and dichloromethane (150 mL) cooled in ice bath was added p-nitrophenyl chloroformate (6.06 g, 30 mmol) drop wise over a period of 1 h. The reaction mixture was srirred at room temperature for 3 h and then washed with water (3×100 mL), dried over sodium sulfate and concentrated to afford an oil which was triturated with ether:hexane to afford the titled compound as yellow solid (5.9 g, 65%).

1. washwashed with water (3×100 mL)
2. dry with materialdried over sodium sulfate
3. concentrationconcentrated
4. customto afford an oil which
5. customwas triturated with ether