反应详情

To a cooled (0° C.) solution of 2-(hydroxymethyl)thiophene-4-carbonitrile (1.14 g, 8.2 mmol) in dichloromethane (50 mL) was added triphenylphosphine (2.8 g, 10.6 mmol) and carbon tetrabromide (3.3 g, 9.9 mmol). After stirring for 3 h at rt, the solvent was removed in vacuo and the residue chromatographed using EtOAc and n-hexane (1:4) to give the title compound (1.6 g, 96%).

1. customthe solvent was removed in vacuo
2. customthe residue chromatographed