Conjugated azoalkenes. Part 12. Synthesis of new 1-amino-3-cyanopyrrole, 1,2-diaminopyrrole and pyrrolo[2,3-b] pyrrole derivatives by reaction of some conjugated azoalkenes with activated nitriles

Abstract

The reactions of a variety of conjugated azoalkenes with β-cyano ketones or β-cyano amides have been studied and, depending on the nature and the molar ratios of the reagents, new 1 -amino-3-cyanopyrroles, 1,2-diaminopyrroles and 1,3a,6,6a-tetrahydropyrrolo[2,3-b]pyrroles can be obtained in good yields and under mild reaction conditions.