反应详情

温度

55 °C

(Brown, Stephen; Grigg, Ronald; Hinsley, Joanne; Korn, Stewart; Sridharan, Visuvanathar; Uttley, Michael; Tetrahedron (2001), 57(52), 10347-10355.) A mixture of 4-iodobenzylchloride (40.0 g, 134.7 mmol), potassium phthalimide (26.20 g, 141.5 mmol) and dry DMF (150 mL) was heated overnight at 55° C. under Ar, and then the solvent was removed at reduced pressure. The solid residue was triturated with CHCl3 (200 mL), filtered, and washed with CHCl3 (3×200 mL). The combined organic extracts were successively washed with aqueous 0.2 M NaOH (200 mL) and H2O (400 mL), and then dried (MgSO4). The solvent was removed at reduced pressure to afford a crude solid, which was triturated with Et2O to obtain a white solid (37.00 g, 75%): Rf=0.75 (1/1 EtOAc/hexanes); mp 138-139° C.; 1H NMR (CDCl3) 4.77 (s, CH2), 7.17 (d, J=8.6 Hz, 2 ArH), 7.63 (d, J=8.6 Hz, 2 ArH), 7.78 (dd, J=3.0, 5.7 Hz, 2 PhtH), 7.83 (dd, J=3.0, 5.7 Hz, 2 PhtH); 13C NMR (CDCl3) 41.0 (CH2), 93.5 (Cl), 123.4, 130.6, 131.9, 134.1, 135.9, 137.7 (6 Ar), 167.2 (2C(O)); HRMS (ESI) 363.9831 [M+H+] (calcd for C17H13NO2H+ 363.9835).

1. customthe solvent was removed at reduced pressure
2. customThe solid residue was triturated with CHCl3 (200 mL)
3. filtrationfiltered
4. washwashed with CHCl3 (3×200 mL)
5. washThe combined organic extracts were successively washed with aqueous 0.2 M NaOH (200 mL) and H2O (400 mL)
6. dry with materialdried (MgSO4)
7. customThe solvent was removed at reduced pressure
8. customto afford a crude solid, which
9. customwas triturated with Et2O