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Short Paper | Special issue | Vol 90, No. 1, 2015, pp.715-722
Published online, 8th August, 2014
DOI: 10.3987/COM-14-S(K)50
The Cycloaddition of 2-Phenylamino-1-azaazulene with Diphenylacetylene Using Palladium Catalytic Systems

Hiroyuki Fujii,* Shigeki Oka, Ippei Nakamura, Yu Kawai, Reiko Ikeda, Takeo Konakahara, and Noritaka Abe

*Scientific Research Center, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8512, Japan


Selective cycloaddition was achieved by the reaction of 2-phenylamino-1-azaazulene (3) with diphenylacetylene (4) in the presence of Pd catalyst providing N-(1-azaazulen-2-yl)-2,3-diphenylindoles.