反応 #1755455

反応方程式

1-(4′-phenylsulfonylphenyl)benzimidazole

trimethyloxonium tetrafluoroborate

ethanol

→

1-(4′-phenylsulfonylphenyl)-3-methylbenzimidazolium tetrafluoroborate

収率 80.0%

溶媒

dichloromethane

反応条件

後処理

1. 1
   ろ過the precipitate which forms is filtered off
2. 2
   洗浄washed with cold petroleum ether

実験手順

A solution of 1-(4′-phenylsulfonylphenyl)benzimidazole (6.7 g, 20 mmol) in dichloromethane (100 ml) is admixed at −10° C. with trimethyloxonium tetrafluoroborate (3.3 g, 22 mmol) and stirred under argon for 16 h. After adding ethanol, the precipitate which forms is filtered off and washed with cold petroleum ether. Yield: 80%.

出典