Triethylamine → 1-[4-(4-Ethoxyphenoxy)benzyl]-2-methylbenzimidazole

反応式

[CH3:1][C:2]1[NH:3][C:4]2[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=2[N:6]=1.C(N(CC)CC)C.[CH2:18]([O:20][C:21]1[CH:35]=[CH:34][C:24]([O:25][C:26]2[CH:33]=[CH:32][C:29]([CH2:30]Cl)=[CH:28][CH:27]=2)=[CH:23][CH:22]=1)[CH3:19]>C1(C)C=CC=CC=1>[CH2:18]([O:20][C:21]1[CH:35]=[CH:34][C:24]([O:25][C:26]2[CH:33]=[CH:32][C:29]([CH2:30][N:3]3[C:4]4[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=4[N:6]=[C:2]3[CH3:1])=[CH:28][CH:27]=2)=[CH:23][CH:22]=1)[CH3:19]

参加物

実験手順

A mixture of toluene (20 ml), 2-methylbenzimidazole (0.55 g, 4.2 mmole), triethylamine (0.42 g, 4.2 mmole) and 4-(4-ethoxyphenoxy)benzyl chloride (1.00 g, 3.8 mmole) was heated under reflux for 5 hours and then cooled to room temperature. The resultant mixture was washed with water, dried over anhydrous sodium sulfate and distilled under reduced pressure to remove toluene. The residue was purified by silica gel column chromatography to give 1-[4-(4-ethoxyphenoxy)benzyl]-2-methylbenzimidazole (1.20 g) as colorless liquid. nD26.0 1.5984.