Hydrazine → HCID 178483571, compound

Participants

Reaction Conditions

Reaction Steps

The 4-[4-(3-dimethylamino-propoxy)-phenyl]-3-oxo-butyronitrile is then converted to the appropriate aminopyrazole by the following method: Under Ar(g), 0.285 gms. of the 4-[4-(3-dimethylamino-propoxy)-phenyl]-3-oxo-butyronitrile is dissolved in 5 mL of anhydrous EtOH and then is treated with 0.100 mL anhydrous hydrazine. The reaction mixture is then heated overnight at 65° C., subsequently, cooled to room temperature and concentrated in vacuo providing 5-[4-(3-dimethylamino-propoxy)-benzyl]-2H-pyrazol-3-ylamine which is use in crude form in the reactions of Examples 56 and 57.

Provenance & Evidence