sodium hydroxide; dihydrogen peroxide in water 2 h;

1: With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride in tetrahydrofuran T=20°C; 0.333333 h; 2: With ammonium hydroxide in water T=20°C; 20 h;

tert.-butylnitrite; copper(ll) bromide in acetonitrile T=0 - 20°C;