反应详情

Prepared the isocyanate from 4-iodo-2-nitroaniline (12.0 g, 45.5 mmol; prepared from 2-nitroaniline according to Wilson, J. Gerald; Hunt, Frederick C. Aust. J. Chem. 1983, 36, 2317–25; CAS-No. [20691-72-9]) with diphosgene (4.1 mL, 34.1 mmol) in EtOAc (250 mL), followed by treatment with tert.-BuOH (12 mL) in CH2Cl2 (60 mL) according to the general procedure A (method a). Obtained as a yellow solid (8.23 g, 82%). MS (EI) 390 (M+); mp 92–94° C.