反应 #1381

ord-a382dee7401645edb9da6c1fce7078a0

反应条件

详细条件
See reaction.notes.procedure_details.

后处理

  1. 1
    其他at room temperature
  2. 2
    过滤the catalyst is filtered off
  3. 3
    浓缩The reaction mixture is concentrated
  4. 4
    workup.ADDITIONis added water
  5. 5
    萃取followed by extraction with dichloromethane
  6. 6
    浓缩The solvent is concentrated

实验过程

Methyl 2-methyl-3-nitrobenzoate (10.0 g) is dissolved in acetic acid (50 ml) and thereto 5% Pd-C (1 g) is added to carry out catalytic reduction at room temperature under 1 atm. After 1.5 hours, the catalyst is filtered off. The reaction mixture is concentrated, and thereto is added water, and the mixture is made alkaline with potassium carbonate, followed by extraction with dichloromethane. The solvent is concentrated to give methyl 2-methyl-3-aminobenzoate (8.6 g).

来源

DOI: 10.6084/m9.figshare.5104873.v1专利: US05723648uspto-grants-1998_03