Abstract
New platinum complexes based on incorporation of the bidentate, monoanionic 2-(2‘-pyridyl)indolide (PyInd) ligand, or two closely related ligands, have been prepared. Reaction of the dimethyl complex K[(PyInd)PtMe2] (K[2a]) in benzene at 150 °C produces the diphenyl species K[(PyInd)PtPh2] (K[3a]), a transformation that appears to proceed via direct oxidative addition of benzene to the 16-electon Pt(II) center. Complex K[2a] also undergoes oxidative addition of Me3SiOTf (OTf = triflate) to give (PyInd)Pt(SiMe3)Me2 (4), a rare five-coordinate Pt(IV)-silyl species. Additionally, reactions that involve stereoselective formation of products of the type (PyInd)Pt(X)(L), including the structurally characterized complexes (PyInd)Pt(Ph)(MeCN) (6) and (PyInd)Pt(Cl)(C2H4) (7), have been observed. These results indicate that the sites trans to the pyridinyl and indolyl fragments of the PyInd ligand are electronically differentiated. Studies of catalytic reactions that presumably proceed via the 14-electron fragment ...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.