Hydrochloric Acid → HCID 11066487, Verbindung

HRID 1707797Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1707797
[CH3:1][C:2]1[CH:21]=[CH:20][CH:19]=[CH:18][C:3]=1[O:4][CH2:5][C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=1[C:12](=O)[C:13]([O:15][CH3:16])=[O:14].[Cl-].[OH:23][NH3+:24].Cl>CO>[CH3:1][C:2]1[CH:21]=[CH:20][CH:19]=[CH:18][C:3]=1[O:4][CH2:5][C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][C:7]=1/[C:12](=[N:24]\[OH:23])/[C:13]([O:15][CH3:16])=[O:14]

Komponenten

5

Reaktionsbedingungen

Temperatur
25 °C

Versuchsvorschrift

56.8 g (0.2 mol) of methyl 2-(2-methylphenoxymethyl)phenylglyoxylate and 15.2 g (0.22 mol) of hydroxylammonium chloride in 67.5 ml of methanol are refluxed for 6.5 hours. The resulting mixture (of E- and Z-oximes) is cooled to 0° C. and 14.2 g (0.39 mol) of hydrogen chloride are passed in, and the mixture is then stirred at 25° C. for 5 hours. The solvent is removed by distillation under reduced pressure, the residue is taken up in diethyl ether, and the solution is washed with water, dried over sodium sulfate and evaporated to dryness. 55.3 g of solid E isomer (melting point 115° C.) are obtained.

Aufarbeitung

  1. customThe solvent is removed by distillation under reduced pressure
  2. washthe solution is washed with water
  3. dry with materialdried over sodium sulfate
  4. customevaporated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-2e18f7df529347228adf1335ae8cbf11
Quelldatensatz
uspto-grants-1994_10
Patentnummer
US05354883

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