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.
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
Studies on fluoroalkylation and fluoroalkoxylation. Part 16. Reactions of fluoroalkyl iodides with some nucleophiles by SRN1 mechanism
作者:Qing-Yun Chen、Zai-Ming Qiu
DOI:10.1016/s0022-1139(00)85017-4
日期:1987.3
dimer of the anion (). The reaction can be partly suppressed with 1,4-dinitrobenzene(p-DNB) and the radical intermediate can be trapped by diallyl ether (DAE) to give the tetrahydrofuran derivatives. Anions of acetylacetone and malonitrile react also with in the presence of DAE to yield the five-membered ring compounds. All these results seem to indicate that the reaction is a radical chain process
Oxidant-induced addition reaction of perfluoroalkyl halides to alkenes and alkynes
作者:Xiao-Chuan Guo、Qing-Yun Chen
DOI:10.1016/s0022-1139(97)00132-2
日期:1998.2
Ceric sulfate, cerium(IV) ammonium nitrate, sodium persulfate, ammonium persulfate and potassium permanganate can smoothly induce the addition reaction of perfluoroalkyl halides (1) to electron-rich olefins (2) and alkynes (4) to give monoadducts (3 or 5). The perfluoroalkyl radical generated via possible pathways from 1 is discussed. (C) 1998 Elsevier Science S.A. All rights reserved.
CHEN, QING-YUN;CHEN, JIAN-GUO, ACTA CHIM. SIN., 46,(1988) N 3, 301-304