CONJUGATED AZOALKENES .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

The reactions of a variety of conjugated azoalkenes with beta-cyano ketones or beta-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.