SCHEDULED MAINTENANCE
A series of 3-acyl-3-pyrroline-2,5-diones (13)–(17) have been generated in solution by oxidative elimination from the corresponding 3-acyl-3-phenylselenopyrrolidine-2,5-diones (8)–(12), and trapped by the conjugated dienes, trans,trans-hexa-2,4-diene and cyclopentadiene, to give modest to good yields of the Diels–Alder adducts (18)–(27). The imido ring dominated the endo–exo selectivity.
M. L. Durrant and E. J. Thomas, J. Chem. Soc., Perkin Trans. 1, 1984, 901 DOI: 10.1039/P19840000901
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