A redox-initiated per(poly)fluoroalkylation of olefins by per(poly)fluoroalkyl chlorides
摘要:
The per(poly)fluoroalkylation of olefins by per(poly)fluoroalkyl chlorides, initiated by ammonium persulfate/sodium formate (NH4)2S2O8/HCO2Na), is described. The reaction proceeds smoothly in polar aprotic solvents. The presence of functional groups like sodium carboxylate or sulfonate in the polyfluoroalkyl chloride appear to facilitate the reaction. The reaction appears to be initiated by a single-electron transfer, represents the first example of the reactivity of per(poly)fluoroalkyl chlorides, and also demonstrates their use as per(poly)fluoroalkylating agents. For alpha-chloro-omega-iodoperfluoroalkanes only the carbon-iodine bond is cleaved during the reaction. An explanation for the apparent stability of the carbon-chlorine bond in such compounds is given.
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.
HUANG WEI-YUAN; WANG WEI, ACTA CHIM. SIN., 44,(1986) N 9, 940-945
作者:HUANG WEI-YUAN、 WANG WEI
DOI:——
日期:——
CHEN QING-YUN; QIU ZAI-MING; YANG ZHEN-YU, J. FLUOR. CHEM., 36,(1987) N 2, 149-161
作者:CHEN QING-YUN、 QIU ZAI-MING、 YANG ZHEN-YU
DOI:——
日期:——
A redox-initiated per(poly)fluoroalkylation of olefins by per(poly)fluoroalkyl chlorides
作者:Changming Hu、Fengling Qing
DOI:10.1021/jo00022a025
日期:1991.10
The per(poly)fluoroalkylation of olefins by per(poly)fluoroalkyl chlorides, initiated by ammonium persulfate/sodium formate (NH4)2S2O8/HCO2Na), is described. The reaction proceeds smoothly in polar aprotic solvents. The presence of functional groups like sodium carboxylate or sulfonate in the polyfluoroalkyl chloride appear to facilitate the reaction. The reaction appears to be initiated by a single-electron transfer, represents the first example of the reactivity of per(poly)fluoroalkyl chlorides, and also demonstrates their use as per(poly)fluoroalkylating agents. For alpha-chloro-omega-iodoperfluoroalkanes only the carbon-iodine bond is cleaved during the reaction. An explanation for the apparent stability of the carbon-chlorine bond in such compounds is given.