Zur Reaktion von Cyclopropenonen mit Azomethinen; VII. Diphenylcyclopropenon und cyclische Amidine: Synthese von bi- und tricyclischen Pyrrolinon-Derivaten
pyrrolizidines and indolizidines, respectively, each with a hydroxy group on the carbon atom at the bridgehead. The cyclopropenone functions as an all-carbon 1,3-dipole equivalent towards the cyclic imine in this reaction, and the cyclic imines used include polyhydroxylated systems, thus allowing access to australine, alexine and hyacinthacine type compounds. The pyrrolizidine products contain the core of the
Zur Reaktion von Cyclopropenonen mit Azomethinen; VII. Diphenylcyclopropenon und cyclische Amidine: Synthese von bi- und tricyclischen Pyrrolinon-Derivaten
作者:Theophil Eicher、Ralph Rohde
DOI:10.1055/s-1985-34144
日期:——
Reactions of Cyclopropenones with Azomethines; VII, Diphenylcyclopropenone and Cyclic Amidines: Synthesis of Bi- and Tricyclic Pyrrolinone Derivatives Reaction of diphenylcyclopropenone (1) with cyclic amidines 2 or 10-13 gives rise to bi- and tricyclic pyrrolinone derivatives of different structural types (3 or 14-17), which can be transformed in simple sequences to pyrrolinoneannellated heterobi- and tricyclic compounds (7, 18-21).