Tetrahedron Letters p. 1081 - 1084 (1990)
Update date:2022-08-10
Topics:
Davis, Deborah A.
Gribble, Gordon W.
The trimethylsilyl trifluoromethanesulfonate accelerated Diels-Alder reaction between 1,3-dimethyl-4-(phenylsulfonyl)-4H-furo<3,4-b>indole (3) and 5,6-dihydropyridones (10) shows high regioselectivity, yielding carbazole 11 upon hydrolytic workup.Carbazole 11b has been successfully converted to the pyridocarbazole alkaloid ellipticine (1).
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