Benzimidazole → 1-(2-(5-Fluoro-1H-indol-3-yl)ethyl)-1H-benzo[d]imidazole
Reaction equation
Br[CH2:2][CH2:3][C:4]1[C:12]2[C:7](=[CH:8][CH:9]=[C:10]([F:13])[CH:11]=2)[NH:6][CH:5]=1.[N:14]1[C:18]2[CH:19]=[CH:20][CH:21]=[CH:22][C:17]=2[NH:16][CH:15]=1.C(N(C(C)C)C(C)C)C>C(Cl)(Cl)Cl>[F:13][C:10]1[CH:11]=[C:12]2[C:7](=[CH:8][CH:9]=1)[NH:6][CH:5]=[C:4]2[CH2:3][CH2:2][N:14]1[C:18]2[CH:19]=[CH:20][CH:21]=[CH:22][C:17]=2[N:16]=[CH:15]1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 3-(2-bromo-ethyl)-5-fluoro-1H-indole (7.26 g, 30 mmol), benz-imidazole (3.54 g, 30 mmol) and ethyl-diisopropylamine (5.1 ml, 30 mmol) in abs. chloroform (80 ml) was boiled under reflux for 20 h. The reaction solution was then washed twice with water, dried over Na2SO4 and concentrated i. vac. and the residue which remained was purified by flash chromatography with CHCl3/MeOH (50:1).