Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 352, Issue 2-3, Pages 368-372Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200900880
Keywords
alkynes; carbazoles; cascade reactions; gold catalysis; heterocycle synthesis
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Funding
- Kaken Pharmaceutical Co., Ltd
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Japan Society for the Promotion of Science (JSPS)
- Grants-in-Aid for Scientific Research [22590005] Funding Source: KAKEN
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Aniline-substituted diethynylarenes, which are readily synthesized through Sonogashira coupling reactions from commercially available 1,2-dihaloarenes, directly produce aryl- and heteroaryl-annulated[a]carbazoles by the gold-catalyzed intramolecular cascade hydroamination/cycloisomerization without producing theoretical by-products. This new atom-economical route is easily applicable to various aryl-annulated[a]carbazoles containing an alkyl, aryl or ester substituent.
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