266304-28-3Relevant articles and documents
Highly Active Cross-Metathesis of Tetrafluoroethylene with a Seven-Membered N-Heterocyclic-Carbene-Ruthenium Catalyst
Mori, Kenta,Akiyama, Midori,Inada, Ko,Imamura, Yutaka,Ishibashi, Yuichiro,Takahira, Yusuke,Nozaki, Kyoko,Okazoe, Takashi
supporting information, p. 20980 - 20987 (2021/12/14)
A drastic increase in catalyst turnover number (TON) was accomplished in the cross-metathesis of tetrafluoroethylene (TFE) and vinyl ethers. Under a continuous flow of TFE, catalyst Ru7, which contains a seven-membered N-heterocyclic carbene (NHC) ligand, reached a TON of 4100; this is 2 orders of magnitude higher than the highest hitherto reported value. Mechanistic studies revealed that the expanded NHC successfully destabilizes the stable intermediates with a difluorocarbene structure, which strongly promotes the reaction.
