Cerium-Catalyzed Hydrosilylation of Acrylates to Give α-Silyl Esters.
Aradhana PindwalSmita PatnaikWilliam C EverettArkady EllernTheresa L WindusAaron D SadowPublished in: Angewandte Chemie (International ed. in English) (2016)
The homoleptic organocerium complex Ce{C(SiHMe2 )3 }3 (1) reacts with B(C6 F5 )3 to produce the zwitterionic bis(alkyl) hydridoborato Ce{C(SiHMe2 )3 }2 HB(C6 F5 )3 (2). NMR and IR spectroscopy and X-ray crystallography indicate that each alkyl ligand contains two bridging Ce↼H-Si interactions in both 1 and 2. Compound 2 serves as a precatalyst for the hydrosilylation of acrylates to give α-silyl esters at room temperature with a turnover number of 2200.