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

HRID 362448

Reaktionsgleichung

Reaktionsgleichung von HRID 362448
Cl.[N+:2]([C:5]1[CH:10]=[CH:9][C:8]([NH:11][NH2:12])=[CH:7][CH:6]=1)([O-:4])=[O:3].[C:13](OCC)(=[O:18])[CH2:14][C:15]([CH3:17])=O>C(O)C>[CH3:17][C:15]1[CH2:14][C:13](=[O:18])[N:11]([C:8]2[CH:7]=[CH:6][C:5]([N+:2]([O-:4])=[O:3])=[CH:10][CH:9]=2)[N:12]=1

Komponenten

4

Edukt 2

HCID 8868Ethyl AcetoacetateHCID 54634014-Nitrophenylhydrazine hydrochloride

Produkt 1

HCID 808163H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)-

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

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.

Aufarbeitung

  1. concentrationThe mixture is concentrated somewhat in vacuo
  2. customThe crystals which have separated out
  3. filtrationare then filtered off with suction

Quellen und Nachweise

ORD-Eintrag
ord-9708b4ea09704412845a368f792b6756
Quelldatensatz
uspto-grants-1999_02
Patentnummer
US05869516

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