61698-70-2Relevant academic research and scientific papers
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.
SYNTHESIS OF FLUORINATED VINYL SULFIDES AND SELENIDES
Piettre, S.,de Cock, Ch.,Merenyi, R.,Viehe, H.G.
, p. 4309 - 4320 (2007/10/02)
The reaction between fluoroolefins 1 and 10e and benzenesulfenyl or selenenyl halides 6 is found to be solvent-dependent and gives in most cases predominantly the regioisomer 8.The structure of adducts 8 and 9 are ascertained by 1H, 19F and 77Se NMR spectroscopy.Compounds 8 are easily halogenated and treatment of the products with magnesium or zinc leads to the desired polyfluorovinyl sulfides and selenides 10.A second route of synthesis of these reagents results from the reaction of fluorovinyllithio-derivatives 11 with benzenesulfenyl or selenenyl halides.Olefin 10e is also obtained from the selenoacetal 8t of trifluoroacetaldehyde.
Fluoride Ion Elimination-Addition Reactions. Synthesis of 2,2-Difluoroethenyl Phenyl Selenide and 2,2,2-Trifluoroethyl Phenyl Selenide
Feiring, Andrew E.
, p. 1958 - 1961 (2007/10/02)
2-Chloro-2,2-difluoroethyl phenyl selenide (1) reacts with KF and a catalytic amount of 18-crown-6 to give 2,2-difluoroethenyl phenyl selenide (3) and 2,2,2-trifluoroethyl phenyl selenide (4).The latter is formed by an elimination-addition sequence. 2-Bro
