Hypervalent iodine oxidation of O-silylated phenol derivatives to azacarbocyclic spirodienones; synthetic approach to the anticancer marine alkaloid, discorhabdin C
Hypervalentiodineoxidation of O-silyated phenols bearing various types of aminoquinones at the p-position in 2,2,2-trifluoroethanol gave azacarbocyclic spirodienones in good yields and application of this reaction to the synthetic approach to discorhabdin C was also described.