251453-07-3Relevant articles and documents
Palladium-catalyzed desymmetrization of silacyclobutanes with alkynes: Enantioselective synthesis of silicon-stereogenic 1-sila-2-cyclohexenes and mechanistic considerations
Shintani, Ryo,Moriya, Kohei,Hayashi, Tamio
supporting information; experimental part, p. 2902 - 2905 (2012/07/17)
A palladium-catalyzed enantioselective desymmetrization of silacyclobutanes with alkynes has been developed to give silicon-stereogenic 1-sila-2-cyclohexenes with high enantioselectivity. The products thus obtained undergo further derivatizations with complete stereoselectivity, and a new catalytic cycle involving alkyne coordination (oxidative cyclization)- transmetalation (σ-bond metathesis)-reductive elimination has also been proposed.
Synthesis of unsymmetrical biaryls from arylsilacyclobutanes
Denmark, Scott E.,Wu, Zhicai
, p. 1495 - 1498 (2008/02/09)
(formula presented) Aryl(fluoro)silacyclobutanes and aryl(chloro)silacyclobutanes have been found to undergo cross-coupling reactions with aryl iodides. The rate of reaction and extent of homocoupling were dramatically affected by the addition of ligands for the palladium catalyst. With (t-Bu)3P a wide range of electronically and structurally diverse unsymmetrical biaryls have been prepared in good to excellent yields.