3-aminopyrrole-2,5-diones 3*. Synthesis of benzenehexa-carboxylic 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

S. V. Chepyshev,Yu. N. Chepysheva,A. B. Ryabitsky,A.V. Prosyanik

3-aminopyrrole-2,5-diones 3*. Synthesis of benzenehexa-carboxylic 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

2009

S. V. Chepyshev
Yu. N. Chepysheva
A. B. Ryabitsky
A.V. Prosyanik

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'] bi-pyrrolyl-2,5,2',5'-tetraone when absolute methanol is used.

Keywords:

Chemistry
Methanol
Hydrogen chloride
Carboxylic acid
Organic chemistry
Inorganic chemistry
Aqueous solution

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