title: Synthesis and Properties of Sila[n]helicenes via Dehydrogenative Silylation of C-H Bonds under Rhodium Catalysis.
abstract: Use of a rhodium catalyst with (R)-(S)-BPPFA ligand allows efficient synthesis of sila[n]helicenes via dehydrogenative silylation of C-H bonds. By selecting the proper ligands, the current method provides the ability to prepare unsymmetrical sila[n]helicene derivatives without any oxidants. The resulting sila[6]helicene is a rare example of a five-membered ring-fused [6]helicene, which was isolated as a single pure enantiomer without substituents on the terminal benzene rings.
authors: Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Center of New Functional Materials for Energy Production, Storage and Transport, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan.
authors: Masahito
authors: M
authors: Murai
authors: Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Center of New Functional Materials for Energy Production, Storage and Transport, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan.
authors: Ryo
authors: R
authors: Okada
authors: Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Center of New Functional Materials for Energy Production, Storage and Transport, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan.
authors: Atsushi
authors: A
authors: Nishiyama
authors: Division of Applied Chemistry, Graduate School of Natural Science and Technology, and ‡Research Center of New Functional Materials for Energy Production, Storage and Transport, Okayama University , 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan.
authors: Kazuhiko
authors: K
authors: Takai