Crystal structure of 2,4,5-tribromo-1-methyl-1H-imidazole, C4H3Br3N2

Tim Peppel, Martin Köckerling
2009 Zeitschrift für Kristallographie - New Crystal Structures  
Source of material 1-Methyl-1H-imidazole (24.6 g, 0.3 mol) and sodium acetate trihydrate (100 g, 0.7 mol) were dissolved in 350 ml glacial acetic acid and asolution of bromine (143.6 g, 0.9 mol) in 50 ml of glacial acetic acid was added slowly under cooling. The resulting solution was stirred overnight and then poured onto 500 ml of ice water. The precipitate of 2,4,5-tribromo-1-methyl-1H-imidazole was filtered off and recrystallized from aqueous ethanol. Yield: 50.0 g(52 %), mp. 93°C.
more » ... mp. 93°C. Discussion Already in the late 19th century Wyss and Wallach reported the correct molecular formula of 2,4,5-tribromo-1-methyl-1Himidazole and they discussed possible chemical structures [1, 2] .
doi:10.1524/ncrs.2009.0262 fatcat:oamsgg2kprev5hn6oofw7ykjh4