Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 75, Issue 5, Pages 1652-1658Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo902639f
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Funding
- National Institute of General Medical Sciences [GM070620, GM079591]
- National Institutes of Health Kansas University Center of Excellence for Chemical Methodologies Library Development [P50 GM069663]
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A simple, straightforward strategy for the synthesis of polyheterocyclic compounds (PHCs) is reported, which involves iterative cycles of palladium-catalyzed Sonogashira coupling, followed by iodocyclization using I-2 or ICl. A variety of heterocyclic units, including benzofurans, benzothiophenes, indoles, and isocomarins, can be efficiently incorporated under mild reaction conditions. In addition, variations of this strategy afford a variety of linked and fused PHCs.
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