Reaktion #342146

Reaktionsgleichung

malononitrile

hydrazine hydrate

2-[(4-methylsulfanylphenyl)hydrazono]malononitrile

hydrazine hydrate

4-methylthioaniline

→

4-[(4-methylsulfanylphenyl)hydrazono]-4H-pyrazole-3,5-diamine

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigePrecipitate formed in the reaction tube
2. 2
   SonstigeThe resulting solid was isolated by filtration
3. 3
   Waschenwashed with ethanol
4. 4
   Sonstigedried

Vorschrift

4-[(4-methylsulfanylphenyl)hydrazono]-4H-pyrazole-3,5-diamine was prepared using 108 mg (0.5 mmol) of 2-[(4-methylsulfanylphenyl)hydrazono]malononitrile, which was derived from 4-methylthioaniline (117 mg, 1.0 mmol) and malononitrile (1.5 mmol), and hydrazine hydrate. Precipitate formed in the reaction tube immediately after the addition of hydrazine hydrate. The resulting solid was isolated by filtration, washed with ethanol, and dried to yield 95 mg (77%) of the compound as an orange solid.

Quelle