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Paper | Special issue | Vol 76, No. 1, 2008, pp.249-256
Published online, 21st December, 2007
DOI: 10.3987/COM-07-S(N)1
Ultrasound-Assisted N-Arylation of Indoles without any Catalyst

Hui Xu,* Lei Lv, Ling-ling Fan, and Xiao-qiang He

*Lab of Pharmaceutical Synthesis, College of Sciences, Northwest A&F University, Yangling 712100, P. R. China


An efficient method for the ultrasound-assisted N-arylation of indoles with haloarenes in an air atmosphere mediated by Cs2CO3 without any catalyst is reported. N-arylindoles are obtained in moderate to good yields while indoles cross-coupling with activated aryl halides (X = F or Cl).