反应详情

To a solution of (Z)-3-amino-3-phenylacrylonitrile (95 mg, 0.660 mmol) in EtOH (1.0 mL) and THF (1.0 mL) in a sealed tube, H2S gas was bubbled through for 5 min. It was then stirred at 90 C for 20 h. The mixture was concentrated in vacuo. The residue was dissolved in MeOH (2.0 mL), aq. H2O2 (30%, 0.5 mL) was added. After being stirred at room temperature for 2 min, the reaction was completed. The mixture was concentrated in vacuo. The residue was purified by HPLC to give 3-phenylisothiazol-5-amine (22 mg).

1. concentrationThe mixture was concentrated in vacuo
2. dissolutionThe residue was dissolved in MeOH (2.0 mL)
3. additionaq. H2O2 (30%, 0.5 mL) was added
4. stirringAfter being stirred at room temperature for 2 min
5. concentrationThe mixture was concentrated in vacuo
6. customThe residue was purified by HPLC