Selective carboxylation of reactive benzylic C–H bonds by a hypervalent iodine(III)/inorganic bromide oxidation system
作者:Toshifumi Dohi、Shohei Ueda、Kosuke Iwasaki、Yusuke Tsunoda、Koji Morimoto、Yasuyuki Kita
DOI:10.3762/bjoc.14.94
日期:——
An oxidation system comprising phenyliodine(III) diacetate (PIDA) and iodosobenzene with inorganic bromide, i.e., sodium bromide, in an organic solvent led to the direct introduction of carboxylic acids into benzylic C-H bonds under mild conditions. The unique radical species, generated by the homolytic cleavage of the labile I(III)-Br bond of the in situ-formed bromo-λ3-iodane, initiated benzylic