Journal
SYNLETT
Volume -, Issue 5, Pages 717-721Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0030-1259688
Keywords
cycloaddition; Lewis acid; fused indoles; alkenes
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Funding
- NSERC
- Cytec Canada
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A novel proton-catalyzed [3+2]-type cyclodimerization of 3-vinylindoles is reported leading to fused cyclopenta[b]indoles, contrasting to the normal [4+2]-cycloaddition pathway. The development of a general, high yielding version of the reaction catalyzed by zinc bromide in toluene is described.
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