Reaktionsgleichung
[Cl:1][CH2:2][C:3]([NH:5][CH2:6][C:7]1[C:15]([OH:16])=[C:14]2[C:10]([CH2:11][CH2:12][C:13]2=O)=[C:9]([CH3:18])[CH:8]=1)=O.Cl.[NH2:20][OH:21].[N:22]1[CH:27]=[CH:26]C=C[CH:23]=1.[CH2:28](O)[CH3:29].[OH2:31]>>[Cl-:1].[OH:16][C:15]1[C:7]([C:6]2[CH:29]=[CH:28][CH:2]=[CH:3][N+:5]=2[CH2:26][C:27]([NH:22][CH3:23])=[O:31])=[CH:8][C:9]([CH3:18])=[C:10]2[C:14]=1[C:13](=[N:20][OH:21])[CH2:12][CH2:11]2Komponenten
6
Versuchsvorschrift
200 Grams of 6-chloroacetylaminomethyl-2,3-dihydro-7-hydroxy-4-methyl-1H-indene-1-one, 77.9 g of hydroxylamine hydrochloride, 300 ml of pyridine and 1,800 ml of ethanol were refluxed for 3 hours. After the reaction was completed, the solvent was removed by evaporation under a reduced pressure, then to the residue thus obtained was added 2 liters of water and the mixture was stirred vigorously, cooled and crystallized. The crystals were collected by filtration, washed with water, and recrystallized from water to obtain 167 g of (2,3-dihydro-7-hydroxy-1-hydroxyimino-4-methyl-1H-indene-6yl)-methylaminocarbonylmethylpyridinium chloride. Colorless flake-like crystals. Melting point: 279° C. (Decomposed).
Aufarbeitung
- customthe solvent was removed by evaporation under a reduced pressure
- customto the residue thus obtained
- temperaturecooled
- customcrystallized
- filtrationThe crystals were collected by filtration
- washwashed with water
- customrecrystallized from water
Quellen und Nachweise
- ORD-Eintrag
- ord-7a603da7931848aeaaadbcc3c883c330
- Quelldatensatz
- uspto-grants-1993_09
- Patentnummer
- US05242919
Verknüpfte Notizen
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