Hydrazine hydrate (1:1) → 4,4'-Dimethylbenzil hydrazone
Reaction equation
[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([C:10]([C:12]2[CH:17]=[CH:16][C:15]([CH3:18])=[CH:14][CH:13]=2)=[O:11])=O)=[CH:4][CH:3]=1.O.[NH2:20][NH2:21]>C(O)C>[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[N:20][NH2:21])[C:10]([C:12]2[CH:17]=[CH:16][C:15]([CH3:18])=[CH:14][CH:13]=2)=[O:11])=[CH:4][CH:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
To a hot solution of 10 g 4,4'-dimethylbenzil in 20 ml of ethanol is added 2.1 g of hydrazine hydrate. After a few minutes at reflux, a solid begins to crystallize. Heating is continued for 10 min. and the solution cooled slowly to 0° C. The solid is filtered off and washed with cold ethanol. The product is recrystallized from ethanol. Yield 7.1 g. M.P. 137°-140°.