Abstract
Phosphine-catalysed [3+2] cycloaddition of ethyl buta-2,3-dienoate and 4-quinolone-1,3-dicarboxylate furnished the (3aS,9aR)-triethyl 9-oxo-9,9a-dihydro-1H-cyclopenta[b]quinoline-3,4,9a(3aH)-tricarboxylate.
Keywords: Phosphine catalysed [3+2] cycloaddition, ethyl buta-2,3-dienoate