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Synthesis of benzo[b]thieno- and benzo[b]furano-[2,3-a]pyrrolo[3,4-c]carbazole-5-, -7- and -5,7-dione

✍ Scribed by Robert L. Hudkins; Neil W. Johnson

Publisher
Journal of Heterocyclic Chemistry
Year
2001
Tongue
English
Weight
47 KB
Volume
38
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

Benzo[b]thieno[2,3‐a]pyrrolo[3,4‐c]carbazoles and benzo[b]furano[2,3‐a]pyrrolo[3,4‐c]carbazoles were prepared from 2‐(2‐benzo[b]thieno)‐ (8) and 2‐(2‐benzo[b]furano)‐3‐[3‐(2,5‐dioxo‐lH‐pyrrolidinyl)]indole (9) by a palladium(II)acetate/tetrachloro‐1,4‐benzoquinone oxidative A‐E ring closure.

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