1: With 2-hydroxy-1,3-isoindolinedione; 2,2'-azo-bisisobutyronitrile; oxygen in acetonitrile T=75°C; 15 h; 2: With sulfuric acid in acetonitrile T=20°C; 1 h;
1: With 1,3-bis-(diphenylphosphino)propane; palladium diacetate; thallous acetate in N,N-dimethyl-formamide T=60°C; 24 h; Inert atmosphere; 2: With hydrogenchloride; water in N,N-dimethyl-formamide T=20°C;
