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.
R. Shintani, H. Kurata and K. Nozaki, Chem. Commun., 2015, 51, 11378 DOI: 10.1039/C5CC04172D
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