Reactions with Pyrrolidine-2,4-diones, I. New Synthesis of Pyranopyrrole and Pyrrolopyridine Systems

Article abstract of DOI:10.1007/BF00799923

The synthesis of some substituted 4-hydroxy-2,5,6,7-tetrahydro-pyrano<2,3-c>pyrrole-2,5-diones (5) and 4-hydroxy-1,2,6,7-tetrahydro-5H-pyrrolo<3,4-b>pyridine-2,5-diones (6) by reacting 1,5-diaryl-pyrrolidine-2,4-diones (1) and 1,5-diaryl-1,5-dihydro-4-amino-2H-pyrrol-2-ones (3) with bis-2,4,6-trichlorophenyl malonates (4) is described. - Keywords: Bis-2,4,6-trichlorophenyl malonates; 1,5-Diaryl-1,5-dihydro-4-amino-2H-pyrrol-2-ones; 1,5-Diarylpyrrolidine-2,4-diones.