Hydroxyamine hydrochloride → 2,2-Dimethyl-4-chromanone oxime

HRID 635903

Reaktionsgleichung

Reaktionsgleichung von HRID 635903
[CH3:1][C:2]1([CH3:13])[CH2:11][C:10](=O)[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[O:3]1.Cl.[NH2:15][OH:16]>CO.N1C=CC=CC=1>[CH3:1][C:2]1([CH3:13])[CH2:11][C:10](=[N:15][OH:16])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[O:3]1

Komponenten

5

Edukt 2

HCID 443297Hydroxyamine hydrochlorideHCID 74542902,2-Dimethyl-chroman-4-one

Produkt 1

HCID 1317223932,2-Dimethyl-4-chromanone oxime

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 1049PyridineLösungsmittel

Reaktionsbedingungen

Temperatur
82.5 °C

Versuchsvorschrift

A reaction mixture prepared from 10 mmol of 2,2-dimethyl-4-chromanone, 12 mmol of hydroxylamine hydrochloride in 5 ml of methanol and 5 ml of pyridine is heated with stirring over the course of 2 hours to 80-85° C., the solvent is distilled off on a rotary evaporator and the oily residue is crystallized under water.

Aufarbeitung

  1. temperatureis heated
  2. distillationthe solvent is distilled off on a rotary evaporator
  3. customthe oily residue is crystallized under water

Quellen und Nachweise

ORD-Eintrag
ord-8b926752e5bb4b5da7a24ab2bf4e3a79
Quelldatensatz
uspto-grants-2001_02
Patentnummer
US06191164B1

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