Ethyl Acetoacetate → 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)-

Beteiligte Stoffe

Rolle	Name	HCID	Einwaage
Edukt	Ethyl Acetoacetate	HCID 8868	—
Edukt	4-Nitrophenylhydrazine hydrochloride	HCID 5463401	—
Lösungsmittel	Ethanol	HCID 702	—
Produkt	3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)-	HCID 80816	—

Reaktionsschritte

1.63 g of p-nitrophenylhydrazine hydrochloride and 1.26 g of ethyl acetoacetate are heated under reflux in 30 ml of ethanol for 45 min. The mixture is concentrated somewhat in vacuo. The crystals which have separated out are then filtered off with suction.

Herkunft & Nachweise

DOI	10.6084/m9.figshare.5104873.v1
Patentnummer	US05869516
Quelldatensatz	uspto-grants-1999_02
ORD ID	ord-9708b4ea09704412845a368f792b6756
Quellennotiz	uspto-grants-1999_02