[ClH:1].[O:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[O:5][CH2:4][CH:3]1[CH2:12][C:13]1[NH:14][CH:15]=[CH:16][N:17]=1.C(OCC)C>CO>[ClH:1].[O:2]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[O:5][CH2:4][CH:3]1[CH2:12][C:13]1[NH:17][CH:16]=[CH:15][N:14]=1Excess 3% hydrogen chloride in methanol is added to a solution of 1.0 g. 2-(1,4-benzodioxan-2-ylmethyl)-imidazole in 20 ml methanol. Diethyl ether is added until precipitation is complete. The product is filtered, washed with ether, air dried and recrystallized from methanol/acetone to yield 2-(1,4-benzodioxan-2-ylmethyl)imidazole hydrochloride, m.p. 221°-224° C.(d).
Wird geladen…