Abstract
The reaction of N‐heterocyclic carbene (NHC)‐stabilized hydrosilylene 1, tBu3SiSi(H)←NHC, with one and two equivalents of benzophenone gave rise to bicyclic compounds 2 and 3, tBu3Si(R)[Si‐CH2‐N(CMeCMeNMe)‐CPh2‐O] (R = H, OCHPh2). The NHC plays a crucial role in this reactivity, as it is directly involved in C–C bond formation and supplies the C–H‐activated methyl group. In the formation of 3, the terminal Si–H bond of the hydrosilylene is involved in transition‐metal‐free hydrosilylation. All steps in these mechanisms are based on NHC‐stabilized zwitterionic transition states and intermediates and were investigated by utilizing DFT calculations. In addition, the CO2 activation of 1 to yield cis/trans‐cyclotrisiloxane 4, [(tBu3Si)(H)Si‐O]3, stereoselectively and its mechanistic study are reported.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
