反应详情

A mixture of 7-chloro-6-iodothieno[3,2-b]pyridine (0.46 g, 1.6 mmol), bis(triphenylphosphine)palladium(II) chloride (0.11 g, 0.16 mmol) and copper(I) iodide (30 mg, 0.16 mmol) was purged with N2. (2R)-but-3-yn-2-ol (0.13 g, 1.9 mmol) and triethylamine (4.5 mL, 33 mmol) was added via syringe. The reaction mixture was heated at reflux for 2 h. The mixture was concentrated under reduced pressure, and the resultant residue was purified on silica gel (eluting with 0-85% EtOAc/hexanes) to give the desired product. LCMS calculated for C11H9ClNOS (M+H)+: m/z=238.0. Found: 238.0.

1. customwas purged with N2
2. temperatureThe reaction mixture was heated
3. temperatureat reflux for 2 h
4. concentrationThe mixture was concentrated under reduced pressure
5. customthe resultant residue was purified on silica gel (eluting with 0-85% EtOAc/hexanes)