HRID505124

反应详情

EQUATION

反应方程式

HRID 505124 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

CONDITIONS

反应条件

温度
0 °C

PROCEDURE

实验过程

To a solution of 4-(2-trifluoromethoxy-phenyl)-pyridine in toluene was added (1 eq.) benzyl bromide, and reaction mixture was stirred under reflux for 2 h. Reaction was monitored by TLC (CH2Cl2/MeOH 95:5) and revealed total conversion to the first intermediate. Complete evaporation of solvent gave a white solid which was pure enough to carry out the next step. The white solid was dissolved in MeOH under argon and cooled down to 0° C., (4 eq.) NaBH4 was added portion-wise (exothermic reaction). The reaction mixture was then stirred for 3 h at RT, reaction again monitored by TLC (CH2Cl2/MeOH 95:5) and revealed total conversion. Evaporation of MeOH, redissolution in CH2Cl2, and washing with 1N NaHCO3 then brine, and evaporation, followed by SiO2 gel chromatography (CH2Cl2/MeOH) gave the title compound in 61% yield.

WORKUP

后处理

  1. temperatureunder reflux for 2 h
  2. customReaction
  3. customComplete evaporation of solvent
  4. customgave a white solid which
  5. customportion-wise (exothermic reaction)
  6. stirringThe reaction mixture was then stirred for 3 h at RT
  7. customreaction
  8. customEvaporation of MeOH, redissolution in CH2Cl2
  9. washwashing with 1N NaHCO3
  10. custombrine, and evaporation