Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 75, Issue 1, Pages 170-177Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo902265s
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Funding
- Zhejiang Provincial Natural Science Foundation of China [R407106]
- Natural Science Foundation of China [20872126]
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Mild conditions have been developed to achieve Pd-catalyzed homocoupling of indoles with excellent regioselectivity in the presence of Cu(OAc)(2)center dot H2O in DMSO at room temperature in high efficiency. This method provides a simple route to 2,3-biindolyls from the electron-rich to moderately electron-poor indoles. The reaction tolerates the bromide substitLient on indoles. In addition, a one-pot approach to C3-position acetoxylated biindolyls is realized via palladium catalysis by the use of AgOAc under oxygen atmosphere as oxidants.
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