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Kita, Yasuyuki,Tohma, Hirofumi,Hatanaka, Kenji,Takada, Takeshi,Fujita, Shigekazu,Mitoh, Shizue,Sakurai, Hiromu,Oka, Shigenori 梨花女子大學校 藥學硏究所 1994 藥學硏究論文集 Vol.- No.4
A novel hypervalent iodine induced nucleophilic substitution of para-substituted phenol ethers in the presence of a variety of nucleophiles is described. UV and ESR spectroscopic studies indicate that this reaction proceeds via cation radicals, 〔ArH^+〕, as reactive intermediates generated by single-electron transfer (SET) from a charge-transfer(CT) complex of phenol ethers with phenyliodine(III) bis(trifluoroacetate) (PIFA). This is the first case that involves a radical intermediate on hypervalent iodine oxidations of aromatic compounds.