反应详情

温度

-78 °C

DMSO (2.87 ml, 40 mmol) was added slowly to a -78° C. solution of oxalyl chloride in methylene chloride (20 ml of 2M, 40 mmol). To this solution was added slowly a solution of benzofuran-7-methanol (4.03 g, 27 mmol) in methylene chloride, and the mixture was stirred 30 min at -78° C. Triethyl amine (30 ml) was added slowly to the reaction mixture, which was then allowed to warm to room temperature. The mixture was diluted with methylene chloride and washed with water and then with brine. The organic layer was concentrated in vacuo to an oil (3.16 g, 80%).

1. temperatureto warm to room temperature
2. washwashed with water
3. concentrationThe organic layer was concentrated in vacuo to an oil (3.16 g, 80%)