title: Rhodium-catalyzed intramolecular alkynylsilylation of alkynes.
abstract: Rhodium-catalyzed intramolecular alkynylsilylation of alkynes is described. The reaction proceeds through syn-insertion by a cationic rhodium/triarylphosphine catalyst, representing the first alkynylsilylation of alkynes via the cleavage of a C(sp)-Si bond by transition-metal catalysis. A highly enantioselective variant is also described for the creation of a silicon stereogenic center.
authors.affiliation: Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. shintani@chembio.t.u-tokyo.ac.jp nozaki@chembio.t.u-tokyo.ac.jp.
authors.forename: Ryo
authors.initials: R
authors.lastname: Shintani
authors.forename: Hiroki
authors.initials: H
authors.lastname: Kurata
authors.forename: Kyoko
authors.initials: K
authors.lastname: Nozaki