反应 #1261309

ord-c309c551cafd42dfad164da8f90a272b

溶剂

反应条件

温度
25°CELSIUS
详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    温度heated
  2. 2
    温度at reflux for 16 hours
  3. 3
    过滤filtered
  4. 4
    浓缩concentrated
  5. 5
    其他The residue was chromatographed on silica gel eluting with chloroform

实验过程

A solution containing the product from Example 6B (7 g, 66.6 mmol) in acetone (270 mL) was treated with ethyl bromopyruvate (8.4 mL, 66.6 mmol) and magnesium sulfate (7.9 g, 66.6 mmol), heated at reflux for 16 hours, cooled to 25° C., filtered and concentrated. The residue was chromatographed on silica gel eluting with chloroform to give the title compound (7.6 g, 57% yield).

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US07834043B2uspto-grants-2010_11