反应详情

温度

7.5 °C

In 75 mL of 1,2-dimethoxyethane was dissolved 50.0 g of 3-(2-(1-benzothiophen-5-yl)ethoxy)propionic acid. Thereto was added 26.1 g of thionyl chloride, which was then refluxed for 2 hours. After cooling, this reaction solution was dropwise added to a mixed solution of 125 mL of water, 20.0 g of sodium hydroxide and 25.2 g of 3-azetidinol hydrochloride at −5 to 10° C., which was then stirred at 0 to 15° C. for 30 minutes. Thereto was added 75 mL of water, which was heated to 40° C. and dissolved. After cooling, the precipitate was collected by filtration to provide 56.5 g of 1-(3-(2-(1-benzothiophen-5-yl)ethoxy)propionyl)azetidin-3-ol as white solid form.

1. temperaturewas then refluxed for 2 hours
2. temperatureAfter cooling
3. temperaturewas heated to 40° C.
4. dissolutiondissolved
5. temperatureAfter cooling
6. filtrationthe precipitate was collected by filtration