One-step construction of five successive rings by rhodium-catalyzed intermolecular double [2+2+2] cycloaddition: enantioenriched [9]helicene-like molecules.
Tanaka
Ken
K
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
Fukawa
Naohiro
N
Suda
Takeshi
T
Noguchi
Keiichi
K