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Short Paper | Special issue | Vol 95, No. 1, 2017, pp.624-635
Published online, 15th December, 2016
DOI: 10.3987/COM-16-S(S)48
Synthesis of 2-Arylamino-1-azaazulenes

Satoru Tsukada,* Makoto Nakazawa, Yuya Okada, Keito Ohtsu, Noritaka Abe, and Takahiro Gunji

*Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan

Abstract

A series of 2-arylamino-1-azaazulenes were synthesized by the Buchwald-Hartwig cross coupling reaction. The resulting compounds were characterized by 1H NMR, 13C NMR, HRMS analyses, and elemental analysis. X-Ray crystallographic analysis revealed that 2-(1-naphthylamino)-1-azaazulene exists in dimeric form with two intermolecular N–HN hydrogen bonds in its crystal structure.