Hypervalent iodine compounds for anti-Markovnikov-type iodo-oxyimidation of vinylarenes
作者:Igor B Krylov、Stanislav A Paveliev、Mikhail A Syroeshkin、Alexander A Korlyukov、Pavel V Dorovatovskii、Yan V Zubavichus、Gennady I Nikishin、Alexander O Terent’ev
DOI:10.3762/bjoc.14.188
日期:——
N-hydroxyimide/I2/hypervalent iodine oxidant system was proposed. Among the examined hypervalent iodine oxidants (PIDA, PIFA, IBX, DMP) PhI(OAc)2 proved to be the most effective; yields of iodo-oxyimides are 34-91%. A plausible reaction pathway includes the addition of an imide-N-oxyl radical to the double C=C bond and trapping of the resultant benzylic radical by iodine. It was shown that the iodineatom in the prepared