反应 #10597

ord-881ac3f56ed04e33b46fda327ae9d93f

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    其他synthesized
  2. 2
    其他The deposited solid was removed by filtration
  3. 3
    其他the solvent was evaporated under reduced pressure
  4. 4
    其他Then, the residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=3:1)

实验过程

A suspension of 1-chloro-5-hydroxyisoquinoline (539 mg, synthesized according to the method described in a reference (Georgian, V. et al., J. Org. Chem., 27, 4571 (1962))), (3-hydroxypropyl)carbamic acid tert-butyl ester (1.58 g, Tokyo Kasei Kogyo) and 1,1′-azobis(N,N-dimethylformamide) (1.55 g) in tetrahydrofuran (8 ml) was added with tri(n-butyl)phosphine (2.24 ml) with ice cooling and stirred at room temperature for 24 hours. The deposited solid was removed by filtration, and the solvent was evaporated under reduced pressure. Then, the residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=3:1) to obtain the title compound (860 mg) as white powdery solid.

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US07094789B2uspto-grants-2006_08