Tetrahedron letters

Coupling of indoleacetic acid trianion or methyl indoleacetic acid dianion. A biomimetic approach to indolocarbazole alkaloids.

J Bergman, B Pelcman

Index: Bergman, J.; Pelcman, B. Tetrahedron Letters, 1987 , vol. 28, # 38 p. 4441 - 4444

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Citation Number: 49

Abstract

ABSTRACT: The bisihdolesuccihic acid ester & was obtained as a i&&we of diastereomers by iodiiie prmated couplh~ g of the dianion 3 or via the tria&-2. The diester was converted to the N-beizylinlide g which was &datively cyclized to tl~ e~ dolo [2, 3-a] pyrrolo (3~~] carbazole cornpouiid 13.