Redox Cycling at Tellurium: Selective and Multiple Activation of Si─H Bonds in Common Organosilanes and SiH₄.

ABSTRACT: Redox catalysis involving the tellurenyl triflate [2-(tBuNCH)C₆H₄Te][OTf] was utilized for the activation of the common silanes Et₃SiH, Ph_{4- n}SiH_n (n = 1-3) as well as the difficult-to-handle gaseous SiH₄. Furthermore, complex siloxanes containing multiple Si─H bonds were converted into siloxylated phenols, which are of high interest for the chemical industry. Insights into the catalytic cycle utilizing para-quinones as both oxidants and substrates were provided by identification of key intermediates and by using in situ time-resolved FTIR spectroscopy, NMR spectroscopy, single-crystal X-ray diffraction analysis, and DFT calculations. Based on this study, the catalytic cycle is initiated by a Si─H bond activation

SUBMITTER: Hejda M 

PROVIDER: S-EPMC12319385 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature