SEARCH Articles Figures Tables Ethyl 4- imidazole-5-carboxylate Ethyl imidazole catalyst Ethyl methyl imidazole Ethyl-4-bromo imidazole Imidazole 1.2- diphenyl-5-ethyl Imidazole 2-ethyl-4-methyl-5-phenyl Imidazole 4-ethyl-2-phenyl Trifluoroacetaldehyde ethyl imidazole