title: One-step construction of five successive rings by rhodium-catalyzed intermolecular double [2+2+2] cycloaddition: enantioenriched [9]helicene-like molecules.
authors: Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan. tanaka-k@cc.tuat.ac.jp
authors: Ken
authors: K
authors: Tanaka
authors: Naohiro
authors: N
authors: Fukawa
authors: Takeshi
authors: T
authors: Suda
authors: Keiichi
authors: K
authors: Noguchi