Return to Article Details 3-AMINOPYRROLE-2,5-DIONES. 3. SYNTHESIS OF BENZENEHEXACARBOXYLIC ACID TRIMETHYLIMIDE AND 1,1'-DIMETHYL-4-METHYLAMINO[3,3']BIPYRROLYL-2,5,2',5'-TETRAONE BY THE REACTION OF 1-METHYL-3-METHYLAMINOPYRROLE-2,5-DIONE WITH HYDROGEN CHLORIDE Download Download PDF