反应详情

2-Chlorobenzo[d]thiazol-6-ol (0.800 g, 4.31 mmol), isopropanol (0.36 mL, 4.74 mmol) and triphenylphosphine (1.24 g, 4.74 mmol) were mixed in THF (1.4 mL) and sonicated. DIAD (0.933 mL, 4.74 mmol) was added dropwise over ˜2 min. After 1 h, the reaction mixture was concentrated under reduced pressure. The material was purified by column chromatography (0 to 10% EtOAc in Hexanes gradient), yielding 0.894 g (91%) of the title compound as a light brown oil. LC-MS: RT=10.21 min., [M+H]+=228.0. Rf=0.50 in 10% EtOAc/Hexanes.

1. customsonicated
2. concentrationthe reaction mixture was concentrated under reduced pressure
3. customThe material was purified by column chromatography (0 to 10% EtOAc in Hexanes gradient)