Halonium Ion-Mediated Reaction of Unsaturated Hydroperoxy Acetals. Competition between the Formation of Cyclic Peroxides and the Migration of the Methoxy (or Hydroxy) Group
作者:Takahiro Tokuyasu、Araki Masuyama、Masatomo Nojima、Kevin J. McCullough
DOI:10.1021/jo991499m
日期:2000.2.1
Monoozonolyses of dienes 2 in methanol gave in each case the corresponding unsaturated alpha-methoxy hydroperoxides 3. Capture of 2-alkyl-substituted cyclohexanone oxides by methanol was highly diastereoselective, thereby providing exclusively the hydroperoxides derived from attack by methanol from the less hindered face of the carbonyl oxide intermediates. Halonium ion-mediated reactions of the hydroperoxides