反应 #6021

ord-52fd80fbaf8b482ba702acb847f8a77a

溶剂

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    浓缩The reaction mixture was concentrated in vacuo
  2. 2
    其他chromatographed on silica gel (125×20 mm)
  3. 3
    洗涤eluting with 5% ethyl acetate in hexane
  4. 4
    其他The product was isolated in a 73% yield (186 mg)

实验过程

A solution of the product of Example 3, Step B (0.2 g, 0.69 mmol), N-bromosuccinimide (117 mg, 166 mmol) and a catalytic amount of AIBN in 2 ml CCl4 was refluxed for 30 minutes. The reaction mixture was concentrated in vacuo and chromatographed on silica gel (125×20 mm) eluting with 5% ethyl acetate in hexane. The product was isolated in a 73% yield (186 mg).

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US05246944uspto-grants-1993_09