Acetone → HCID 12922310, Verbindung

Reaktionsgleichung

[CH3:1][O:2][C:3]1[C:4]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[N:5][N:6]([CH3:14])[C:7]=1[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.[C:21]1(C)C=CC=CC=1.CC(C)=O.[S:32]([O:37]C)([O:35][CH3:36])(=[O:34])=[O:33]>>[CH3:36][O:35][S:32]([O-:37])(=[O:34])=[O:33].[CH3:1][O:2][C:3]1[C:4]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[N+:5]([CH3:21])[N:6]([CH3:14])[C:7]=1[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1

Komponenten

Edukt 4

HCID 180Acetone

HCID 1140Toluene

HCID 6497Dimethyl Sulfate

HCID 124985224-Methoxy-1-methyl-3,5-diphenyl-1H-pyrazole

Produkt 1

HCID 12922310HCID 12922310, Verbindung

Reaktionsbedingungen

Temperatur: 130 °C

Versuchsvorschrift

4-Methoxy-1-methyl-3,5-diphenylpyrazole (20 g, 0.076 mole) is suspended in dimethyl sulfate (23 g) at 20°C and the mixture is stirred and the reaction temperature raised to 130°C. At 70°C the mixture becomes a homogeneous solution and at 130°C some darkening occurs. After maintaining the reaction at 130°C for 1 hour, it is cooled and the mixture poured into toluene (250 ml). The toluene layer is decanted off and further toluene is added, decanted off, and this sequence repeated a third time. The residual oil, obtained from the above treatment, is then treated with acetone (10 ml) which has been dried over anhydrous potassium carbonate. This yields a crystalline product which is filtered off and washed with ether. The acetone filtrate is evaporated to give 27.5 g of oil, dissolved in water, and extracted with chloroform. The chloroform layer is evaporated to a small volume and then ether added. A white precipitate is obtained; combined yield 22 g (74%) of melting point 104.5°-105°C is obtained.