Author/Authors :
Karikomi، نويسنده , , Michinori and Yamada، نويسنده , , Mari and Ogawa، نويسنده , , Yasushi and Houjou، نويسنده , , Hirohiko and Seki، نويسنده , , Katsura and Hiratani، نويسنده , , Kazuhisa and Haga، نويسنده , , Kazuo and Uyehara، نويسنده , , Tadao، نويسنده ,
Abstract :
Oxidative coupling reaction of both 3-hydroxychrysene and 2-hydroxybenzo[c]phenanthrene by using Cu(NO3)2–3H2O under atmospheric air is described. The former gave the aimed coupled biaryl derivative. However, the latter gave a further oxidized helical quinone derivative. The unique helical structure was characterized by X-ray and NMR analysis.
Keywords :
helicenes , oxy-Cope rearrangement , Air-oxidation , Phenol coupling , Chrysene
