Metadata
Author: springer
Data
German[de]
Als Zwischenstufen dieser Cyclisierungsreaktionen werden α-Acylheterocumulene (2 bzw.12,19) postuliert.
English[en]
The quinolines9 and17 are obtained by an independent route by heating the pyrrole-2.3-diones14 and15, which can be synthesized from dibenzoylmethane aniles and oxalyl chloride. α-Acylheterocumulenes (2,12,19, resp.) are postulated as intermediates for these cyclization reactions.