Hydrazine hydrate (1:1) → 3-[4-(Prop-2-EN-1-YL)piperazin-1-YL]propan-1-amine
Reaction equation
[CH2:1]([N:4]1[CH2:9][CH2:8][N:7]([CH2:10][CH2:11][CH2:12][N:13]2C(=O)C3=CC=CC=C3C2=O)[CH2:6][CH2:5]1)[CH:2]=[CH2:3].O.NN>C(O)C>[CH2:1]([N:4]1[CH2:9][CH2:8][N:7]([CH2:10][CH2:11][CH2:12][NH2:13])[CH2:6][CH2:5]1)[CH:2]=[CH2:3]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of N-[3-(4-allyl-1-piperazinyl)propyl]phthalimide (35.6 g) in ethanol (400 ml) was added 100% hydrazine hydrate (14.3 g). The resulting mixture was refluxed with stirring for 2.5 hours. The reaction mixture was cooled and then filtered. The filter cake was washed with ethanol. The filtrate and washing were combined and evaporated under reduced pressure. The residual oil was subjected to column chromatigraphy (aluminum oxide), eluting with a mixture of chloroform and methanol (10:1). The fractions containing the object compound were collected and then evaporated under reduced pressure to give an oil of 3-(4-allyl-1-piperazinyl)propylamine (18.8 g).