A comparative study of the oxidation of 3-aryl-4-hydroxytetrahydroisoquinolines has been carried out. A modification of the Jones conditions turn out to be the best methodology for the regioselective preparation of target 4-isoquinolinone derivatives.
Sanmartin, Raul; De Marigorta, Eduardo Martinez; Moreno, Isabel, Heterocycles, 1997, vol. 45, # 4, p. 757 - 763