1,3-Dichloroacetone → 1,3-dimethyl-2-[(3-chloro-2-oxopropyl)thio]-1H-imidazolium chloride
Reaktionsgleichung
[CH3:1][N:2]1[CH2:6][CH2:5][N:4]([CH3:7])[C:3]1=[S:8].[Cl:9][CH2:10][C:11](=[O:14])[CH2:12]Cl>CC(C)=O>[Cl-:9].[CH3:1][NH+:2]1[CH:6]=[CH:5][N:4]([CH3:7])[CH:3]1[S:8][CH2:12][C:11](=[O:14])[CH2:10][Cl:9]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of 1.01 g (0.0079 mol) of 1,3-dimethylimidazolin-2-thione (prepared by the procedure Of B.L. Benac et al, Org. Syn. 64, 92 (1985) in 40 mL of acetone was added dropwise to a solution of 1.0 g (0.0079 mol) of 1,3-dichloropropanone in 50 mL of acetone over 2 hours. The resulting solution was stirred at room temperature for 18 hours whereupon a precipitate formed. The latter was removed by filtration and dried to obtain 1.76 g (87%) of 1,3-dimethyl-2-[(3-chloro-2-oxopropyl)thio]-1H-imidazolium chloride, m.p. 157-158° C.