反应 #516416

ord-f618bad6fcd34e3eaaf3acfb690df9a2

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    温度at reflux temperature for 24 hours
  2. 2
    过滤filtered
  3. 3
    洗涤The filter cake was washed with cold methanol (2×25 mL)
  4. 4
    其他dried under reduced pressure

实验过程

4′-Hydroxy[1,1′-biphenyl]-4-carboxylic acid (5.0 g, 23.34 mmol, purchased from Aldrich Chemical Co.) and sulfuric acid (0.5 mL) in methanol (100 mL) were heated at reflux temperature for 24 hours. The mixture was allowed to cool to ambient temperature and then filtered. The filter cake was washed with cold methanol (2×25 mL) and dried under reduced pressure to provide the title compound (95% yield).

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US06316475B1uspto-grants-2001_11