反应详情

A solution of 4-fluoro-N-methylbenzylamine (420 μL, 3.19 mmol) in acetonitrile (10 mL) was treated with 3-(imidazole-1-sulfonyl)-1-methyl-3H-imidazol-1-ium triflate (1.50 g, 4.14 mmol) and stirred at ambient temperature for 5 days. The mixture was concentrated under vacuum and purified by silica gel chromatography to afford the title compound (342 mg, 40%) as a pale yellow/orange oil. 1H NMR (400 MHz, DMSO) δ 7.98 (br s, 1H), 7.25 (m, 4H), 7.08 (m, 2H), 4.26 (s, 2H), 2.75 (s, 3H). LCMS (m/z, Method A) ES+ 270.0 [M+1]+.

1. concentrationThe mixture was concentrated under vacuum
2. custompurified by silica gel chromatography