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Short Paper | Special issue | Vol 99, No. 2, 2019, pp.1361-1365
Published online, 18th December, 2018
DOI: 10.3987/COM-18-S(F)69
Efficient Synthesis of Benzofuran Fused 1-Azaazulene

Hiroyuki Fujii,* Yusuke Hironaka, and Noritaka Abe

*Science Research Center, Yamaguchi University, Yamaguchi 753-8512, Japan

Abstract

The synthesis of benzofuran fused 1-azaazulene (cyclohepta[d]benzo[4,5]furano[2,3-b]pyrrole) (4) was achieved by one pot reaction of 2-chloro-1-azaazulene (1) with 2-iodophenol (2) under the conditions in the presence of Pd(OAc)2 and without using a ligand.