Reaction #816377

Reaction equation

4-amino-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

2-chlorophenol

ammonia

→

4-{[(1Z)-3-chloro-4-oxocyclohexa-2,5-dien-1-ylidene]amino}-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

Solvents

water

2-propanol

Conditions

Workup

1. 1
   Otherranging from 5 to 10° C.

Procedure

10 mmol of 4-amino-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one was dissolved in 30 ml of water. This solution was admixed with 10 mmol of 2-chlorophenol in solution in 30 ml of 2-propanol, 3 ml of 20% aqueous ammonia and 22 mmol of potassium ferricyanide at a temperature ranging from 5 to 10° C.

Source