HRID7179

反应详情

EQUATION

反应方程式

HRID 7179 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

Terephthaldicarboxaldehyde (30.02 g, 224 mmol), methanol (200 mL), palladium on activated carbon, (10%, 3.02 g) and 2-(aminomethyl)pyridine (2.3 mL, 22 mol, 0.01 mol equiv) were combined in a hydrogenation vessel and the reaction mixture was shaken on a Parr hydrogenator for 2.5 hours at 40 psi of hydrogen. The mixture was filtered through celite, the cake washed with methanol and the solvent from the eluent removed in vacuo. Purification of the crude product by column chromatography on silica gel (EtOAc/Hexanes, 1:1) afforded the title compound (23.8 g, 78%) as a white solid. 1H NMR (CDCl3) □ 4.80 (s, 2H), 7.53 (d, 2H, J=9 Hz), 7.87 (d, 2H, J=9 Hz), 10.00 (s, 1H).

WORKUP

后处理

  1. filtrationThe mixture was filtered through celite
  2. washthe cake washed with methanol
  3. customthe solvent from the eluent removed in vacuo
  4. customPurification of the crude product by column chromatography on silica gel (EtOAc/Hexanes, 1:1)