Reaction #2028881

Reaction equation

alcohol

4-[3-hydroxymethyl-5-phenyl-1H-pyrazol-1-yl]benzene Sulfonamide

→

aldehyde

4-[3-formyl-5-phenyl-1H-pyrazol-1-yl]benzenesulfonamide

Solvents

ethyl acetate

Conditions

Workup

1. 1
   FiltrationThe mixture was filtered through Celite
2. 2
   Concentrationthe solution was concentrated

Procedure

To a solution of the alcohol prepared in Example 131, Step 3 (1.1 g, 3.3 mmol) in ethyl acetate (20 mL) was added MnO2 (5 g, 60 mmol) and the mixture stirred at room temperature overnight. The mixture was filtered through Celite and the solution was concentrated to provide the crude aldehyde.

Source