Iron-catalyzed addition reaction of fluoroalkyl iodides to alkenes
作者:Qing-Yun Chen、Ya-Bo He、Zhen-Yu Yang
DOI:10.1016/s0022-1139(00)85076-9
日期:1986.12
Fluoroalkyliodides react with alkenes in the presence of catalytic amounts of iron to give the corresponding adducts in good yields, the influence of solvent on the reaction is discussed and a SET initiated radical chain mechanism is proposed.
Studies on fluoroalkylation and fluoroalkoxylation. Part 24. Magnesium-induced single electrons transfer in reactions of fluoroalkyl iodides with alkenes and alkynes
作者:Qing-Yun Chen、Zai-Ming Qiu、Zhen-Yu Yang
DOI:10.1016/s0022-1139(00)81022-2
日期:1987.7
and the reaction could be inhibited by p-DNB. All these results seem to show that a radicalmechanism is involved in non-ethereal solvents. However, both radical addition and fluroalkyl Grignardreagent reactions are involved in THF. The formation of fluoroalkylmagnesium iodide is also found to proceed through a radical intermediate.
Studies on fluoroalkylation and fluoroalkoxylation. Part 10. Electron-transfer induced reactions of perfluoroalkyl iodides and the dialkyl malonate anion and β-fragmentation of the halotetrafluoroethyl radical
作者:Qing-Yun Chen、Zai-Ming Qiu
DOI:10.1016/s0022-1139(00)81433-5
日期:1986.4
malonic ester anion () in DMF to give (), 1-hydroperfluoroalkane () and dimer of the anion (). The reaction is accelerated by UV irradiation and partly suppressed by p-DNB. Diallyl ether (DAE) can trap the radical intermediates to afford five-membered ring products. Interestingly, in the case of ( X = Cl, I ) the same reaction mainly yielded tetrafluoroethylene and instead of and . The radical intermediate
The reaction of polyfluoroalkyl iodides with alkenes or 4-pentenoic acid promoted by sodium bisulfite or sodiumsulfite in DMF aqueous solution was realized. The reaction of alkenes gave corresponding adducts, while γ-lactones were obtained in the case of 4-pentenoic acid in good yields.
Reaction of perfluoroalkyl iodides with alkenes initiated by organophosphine and related compounds
作者:Wei-Yuan Huang、Han-Zhong Zhang
DOI:10.1016/s0022-1139(00)82185-5
日期:1990.10
Perfluoroalkyliodides reacted with alkenes in acetonitrile solution containing catalytic amounts of an organophosphine under mild conditions to give the corresponding adducts in moderate to high yields. Addition of hydroquinone to the reaction mixture suppressed the reaction. Diallyl ether reacted to afford tetrahydrofuran derivatives. These findings indicated that the reaction involved a free radical