反应详情

To a round bottom flask equipped with a magnetic stirrer and condenser were added 35 g (158 mmol) of 5-tert-butyl-2-methyl-4-thiocyanato-phenol prepared in Example GGG, dithiothreitol (25.61 g, 166 mmol), EtOH (250 mL), and 0.02M KH2PO4 buffer solution (25 mL), respectively. The reaction was heated to reflux; after 2 hours, additional dithiothreitol (5.0 g, 32.4 mmol) and 0.02M KH2PO4 buffer solution (25 mL) were added. After 2 hours at reflux, the solution was cooled to room temperature and concentrated. The reaction was quenched with brine and extracted with 1:1 Et2O:hexanes. The organic layer was washed with brine, dried (MgSO4), and concentrated. The residue was submitted to column chromatography (100% CHCl3, silica gel) to yield the title compound. 1H NMR (CDCl3) δ 1.45 (s, 9 H), 2.15 (s, 3 H), 3.43 (s, 1 H), 4.56 (br s, 1 H), 6.82 (s, 1 H), 7.05 (s, 1 H).

1. customTo a round bottom flask equipped with a magnetic stirrer and condenser
2. temperatureThe reaction was heated to reflux
3. temperatureAfter 2 hours at reflux
4. concentrationconcentrated
5. customThe reaction was quenched with brine
6. extractionextracted with 1:1 Et2O
7. washThe organic layer was washed with brine
8. dry with materialdried (MgSO4)
9. concentrationconcentrated