反应详情

To a solution of propan-1-amine (2.36 g, 0.04 mol) in tetrahydrofuran (100 mL) at 0° C. was added triethylamine (4.05 g, 0.04 mol) and 2-nitrobenzene-1-sulfonyl chloride (8.88 g, 0.04 mol) in several portions over 10-15 minutes. The reaction mixture was stirred at room temperature for 4 hours, filtered and concentrated to afford the product 2-nitro-N-propylbenzenesulfonamide (9.18 g, yield 93.9%). 1H NMR (400 MHz, CDCl3) δ ppm 8.11-8.16 (m, 1H), 7.84-7.89 (m, 1H), 7.74-7.79 (m, 2H), 5.26 (s, 1H), 3.05-3.10 (t, 2H, J=6.4 Hz), 1.51-1.60 (m, 2H), 0.89-0.92 (t, 3H, J=7.6 Hz).

1. filtrationfiltered
2. concentrationconcentrated