Efficient Routes to Pyrazolo[3,4-b]indoles and Pyrazolo[1,5-a]benzimidazoles via Palladium- and Copper-Catalyzed Intramolecular C−C and C−N Bond Formation

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• 作者：Sarvesh Kumar ; Hiriyakkanavar Ila ; Hiriyakkanavar Junjappa
• 刊名：Journal of Organic Chemistry
• 出版年：2009
• 出版时间：September 18, 2009
• 年：2009
• 卷：74
• 期：18
• 页码：7046-7051
• 全文大小：856K
• 年卷期：v.74,no.18(September 18, 2009)
• ISSN：1520-6904

文摘

Efficient synthetic routes to pyrazolo[3,4-b]indoles and pyrazolo[1,5-a]benzimidazoles via intramolecular palladium- and copper-catalyzed cyclization of 1-aryl/1-unsubstituted 5-(2-bromoanilino)pyrazole precursors via intramolecular C−C and C−N bond formation have been reported.