Methyl iodide → HCID 12909447, Verbindung

Reaktionsgleichung

[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:20](=[O:21])[C:11]3=[CH:12][NH:13][C:14]4[CH:15]=[CH:16][CH:17]=[CH:18][C:19]=4[C:10]3=[N:9]2)=[CH:4][CH:3]=1.[H-].[Na+].[CH3:24]I>O1CCCC1>[CH3:24][N:13]1[C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][C:19]=2[C:10]2=[N:9][N:8]([C:5]3[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=3)[C:20](=[O:21])[C:11]2=[CH:12]1

Komponenten

Versuchsvorschrift

The mixture of 5.0 g of 2-(p-chlorophenyl)-pyrazolo[4,3-c]quinolin-3(5H)-one, 0.81 g of 50% sodium hydride in mineral oil and 100 ml of anhydrous tetrahydrofuran is refluxed for 2 hours. It is cooled to room temperature, combined with 3.0 g of methyl iodide while stirring and another 1.0 g thereof is added after one hour. The mixture is stirred overnight at room temperature, filtered and the residue recrystallized from tetrahydrofuran-heptane, to yield the 5-methyl-2-(p-chlorophenyl)-pyrazolo[4,3-c]quinolin-3-one melting at 322°-323°.