Synthesis of 2,3′-biindolyls and indolo[3,2- a]carbazoles

[Display omitted] Several highly activated 2,3′-biindolyls were prepared from methyl 5,6-dimethoxyindole-2-carboxylate and oxindoles. The 2,3′-biindolyls were further transformed into a hydroxy indolo[3,2- a]carbazole and a bisindole amide.

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Bibliographic Details
Published in:Tetrahedron letters 2004, Vol.45 (39), p.7273-7275
Main Authors: Wahlström, Niklas, Bergman, Jan
Format: Article
Language:English
Subjects:
2,3′-Biindolyls
Indole
Indolocarbazole
Triflic anhydride
Vilsmeir reaction
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Description
Summary:[Display omitted] Several highly activated 2,3′-biindolyls were prepared from methyl 5,6-dimethoxyindole-2-carboxylate and oxindoles. The 2,3′-biindolyls were further transformed into a hydroxy indolo[3,2- a]carbazole and a bisindole amide.
ISSN:0040-4039
1359-8562
1873-3581
DOI:10.1016/j.tetlet.2004.08.024