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■ Facile Formation of 2,2’-Diquinolylmethane N,N’-Dioxides and Mono-N-oxides And Related Reactions

Genji Iwasaki, Kazuko Wada, Seitaro Saeki, and Masatomo Hamana*

*Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan

Abstract

Reactions of quinoline N-oxides with derivatives of quinaldine or its N-oxide in the presence of t-BuOK in THF at low temperatures afford mono-N-oxides or N,N’-dioxides of 2,2’-diquinolylmethanes, respectively. Some related reactions are also described, which involve reactions of p-chloronitrobenzene giving 2-substituted 4-chloronitrobenzenes.