… . XXXIX. 1, 2, 4??Triaryl??3??aminopyrroles. Unusual Reaction Products in the Pyrolysis of 5??Amino??v??triazolines and the Crystal Structure of 2??(3??Morpholin??4??yl??2, 4?? …

D Pocar, P Trimarco, G Bombieri

Index: Pocar, Donato; Trimarco, Pasqualina; Bombieri, Gabriella Journal of Heterocyclic Chemistry, 1998 , vol. 35, # 3 p. 687 - 692

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Citation Number: 7

Abstract

Abstract Pyrolysis of 4-aryl-5-amino-v-triazolines affords, generally, amidines and/or benzanilides. Pyrolysis of 4-aryl-5-morpholino-v-triazolines 6, together with the expected amidines 7 and/or aryanilides 8, produced the morpholinopyrroles 9. The reaction mechanism of this unusual transformation is discussed. Influence of solvent dipole moment in pyrrole formation is suggested. Pyrrole 9a [ie. 2-(3-morpholin-4-yl-2, 4-pyrrol-1-yl)- ...