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

Abstract

In the presence of hydrogen chloride in aqueous methanol 1-methyl-3-methylaminopyrrole-2,5-dione forms benzenehexacarboxylic acid trimethylimide but gives 1,1'-dimethyl-4-methylamino[3,3']bipyrrolyl-2,5,2',5'-tetraone when absolute methanol is used.

How to Cite
Chepyshev, S. V.; Chepysheva, Yu. N.; Ryabitsky, A. B.; Prosyanik, A. V.   Chem. Heterocycl. Compd. 2009, 45, 823. [Khim. Geterotsikl. Soedin. 2009, 1040.]

For this article in the English edition see DOI 10.1007/s10593-009-0355-y