Methyl iodide → HCID 13126000, compound

Participants

Reaction Steps

A slurry of 0.17 g (0.007 mole) of sodium hydride in 10 ml of tetrahydrofuran was added to a solution of 1.8 g (0.005 mole) of 3-fluoro-7-bromo-5-(2-fluorophenyl)-1,3-dihydro-2H-1,4-benzodiazepin-2-one and 10 ml methyl iodide in 100 ml tetrahydrofuran. The reaction mixture was stirred for 3 hr at 25° and then poured into 300 ml ice water. The aqueous mixture was extracted with methylene chloride, and the extracts were dried (MgSO4) and then evaporated to dryness under reduced pressure. The residue was recrystallized from heptane to give 0.91 g (50%) of cream-colored crystals: mp 127°-130° (with previous softening); 1H nmr (CDCl3) δ 3.49 ppm (s, 3H), 5.62 ppm (d, J=57 Hz, 1H) and 6.9-7.9 ppm (m, 7H); 19F nmr (CDCl3) δ -111.9 ppm (m, 1F) and -162.4 ppm (d, J=57 Hz, 1F).

Provenance & Evidence