反应详情

温度

160 °C

To (4-hydroxymethyl-phenyl)-acetic acid (2 g, 12 mmol) was added 2-amino-benzenethiol (13.2 g, 12 mmol) and the mixture was heated at 160° C. for 48 h. The crude residue was then partitioned between EtOAc (200 mL) and 1 N NaOH (200 mL). The organic layer was separated, washed with satd. aq. NaCl (200 mL), dried (MgSO4), filtered and concentrated. Purification by silica gel flash chromatography (0% to 80% EtOAc in hexanes) afforded the title compound as a colorless oil (0.42 g, 14%). MS (ESI): mass calcd. for C15H13NOS, 255.34; m/z found, 456.1 [M+H]+. 1H NMR (500 MHz, CDCl3): 8.00 (d, J=8.1 Hz, 1H), 7.80 (d, J=8.1 Hz, 1H), 7.48-7.45 (m, 1H), 7.39-7.28 (m, 5H), 4.71 (s, 2H), 4.44 (s, 2H).

1. customThe crude residue was then partitioned between EtOAc (200 mL) and 1 N NaOH (200 mL)
2. customThe organic layer was separated
3. washwashed with satd
4. dry with materialaq. NaCl (200 mL), dried (MgSO4)
5. filtrationfiltered
6. concentrationconcentrated
7. customPurification by silica gel flash chromatography (0% to 80% EtOAc in hexanes)