Phenethyl bromide → HCID 467113, Verbindung

Reaktionsgleichung

[Mg].Br[CH2:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1.[CH3:11][C:12]1[CH:25]=[CH:24][C:15]2[N:16]3[C:21]([CH:22]=[O:23])=[CH:20][N:19]=[C:17]3[S:18][C:14]=2[CH:13]=1>C1COCC1>[CH3:11][C:12]1[CH:25]=[CH:24][C:15]2[N:16]3[C:21]([CH:22]([CH2:3][CH2:4][C:5]4[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=4)[OH:23])=[CH:20][N:19]=[C:17]3[S:18][C:14]=2[CH:13]=1

Komponenten

Versuchsvorschrift

Magnesium (0.29 g, 12 g atom) in THF (60 mL) was treated with (2-bromoethyl)-benzene (1.64 mL) and reacted for 18 hours. The suspension was treated with solid 7-Methyl-imidazo [2,1-b]benzothiazole-3-carboxaldehyde (Formula K-3) (0.65 g) and reacted for 2 hours. The reaction mixture was decanted into cold 5% ammonium chloride solution and precipitated 7-Methyl-α-(2-phenylethyl)imidazo[2,1-b]benzothiazole-3-methanol (Formula K-4) (0.96 g) was filtered. An aliquot was crystallized from methylene chloride/ethanol solution to yield pure 7-Methyl-α-(2-phenylethyl) imidazo[2,1-b]benzothiazole-3-methanol (Formula K-4), m.p. 209-210°.