HRID1838867

反应详情

EQUATION

反应方程式

HRID 1838867 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

To a solution of 4-[4-(4-fluorophenyl)-2-methyl-5-(2-methylsulfanyl-pyrimidin-4-yl)-3-oxo-2,3-dihydro-pyrazol-1-yl]-piperidine-1 carboxylic acid tert-butyl ester, 11, (5.9 g, 12 mmol) in CHCl3 (200 mL) at 0° C. is added meta-chloroperbenzoic acid (4 g, 23.37 mmol). After stirring for 5 minutes, saturated sodium bisulfite (20 mL) is added and the reaction mixture stirred for an additional 5 minutes. The aqueous phase is extracted three times with CH2Cl2, the combined organic phases washed with saturated sodium bicarbonate, dried (MgSO4), filtered and concentrated in vacuo. The crude material is used without further purification.

WORKUP

后处理

  1. stirringthe reaction mixture stirred for an additional 5 minutes
  2. extractionThe aqueous phase is extracted three times with CH2Cl2
  3. washthe combined organic phases washed with saturated sodium bicarbonate
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude material is used without further purification