HRID1384621

反应详情

EQUATION

反应方程式

HRID 1384621 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

A mixture of ethyl 2-hydroxy-pyridine-4-carboxylate (1.0 g, 6 mmol), (Chem. Abs. 1957, 8740c), methyl iodide (1 ml) and silver(I)carbonate (1.64 g) in toluene (20 ml) was heated at reflux for 2 hours. The mixture was allowed to cool and the insolubles removed by filtration through diatomaceous earth and the pad was washed through with ethyl acetate. The filtrate was washed with water, dried (MgSO4) and the solvent removed by evaporation to give ethyl 2-methoxy-pyridine-4-carboxylate (0.93 g, 86%) as a yellow oil. 1H NMR Spectrum: (CDCl3) 1.30(t, 3H); 3.90(s, 3H); 4.30(q, 2H); 7.24(s, 1H); 7.35(d, 1H); 8.20(d, 1H) MS-ESI: 182 [MH]+

WORKUP

后处理

  1. temperaturewas heated
  2. temperatureat reflux for 2 hours
  3. temperatureto cool
  4. customthe insolubles removed by filtration through diatomaceous earth
  5. washthe pad was washed through with ethyl acetate
  6. washThe filtrate was washed with water
  7. dry with materialdried (MgSO4)
  8. customthe solvent removed by evaporation