2-hydroxy-1,3-isoindolinedione; azobisisobutyronitrile; oxygen in acetonitrile T=75°C; P=760.051 Torr; 21 h; Product distributionKinetics; Further Variations:ReagentsSolventsPressures;

oxygen; 1,1'-azobis (cyclohexanecarbonitrile) T=105°C; 6 h;

CuCl2·2H2O; tetrabutylammomium bromide; oxygen T=80°C; 10 h;

1: sulfuric acid / acetone / Heating 2: sulfuric acid / 6 h / 79 - 82 °C 3: copper acetylacetonate; 2-hydroxy-1,3-isoindolinedione; 2,2'-azo-bisisobutyronitrile / benzonitrile / 0.83 h / 70 °C View Scheme

sulfuric acid in acetonitrile T=25°C; 2 h;