Tetrahedron letters

Synthesis of hexahydroindol-6-ones by cycloacylation of vinylogous urethanes

JP Michael, AS Howard, RB Katz, MI Zwane

Index: Michael, Joseph P.; Howard, Arthur S.; Katz, Ruth B.; Zwane, Mzwandile I, Tetrahedron Letters, 1992 , vol. 33, # 33 p. 4751 - 4754

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Citation Number: 9

Abstract

Abstract The title compounds were prepared by variations of a route in which the principal stages include conversion of N-substituted pyrrolidine-2-thiones 6 into vinylogous urethanes 10, which undergo subsequent cycloacylation. A related approach that uses a Robinson annulation was also partly successful.

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