SEARCH Articles Figures Tables 1.3- Dimethyl imidazol-2-ylidene 1.5- Dimethyl-4-mercapto-imidazol 4.4- Dimethyl-4//-imidazole, rearrangement Dimethyl imidazole-4,5-dicarboxylate Imidazoles reaction with dimethyl acetylenedicarboxylate