Nitric Acid → HCID 58979967, compound

Participants

Reaction Conditions

Reaction Steps

To a 100 ml one-necked flask was added a mixture of 4 g (0.008 mol) 2,9-bis-(5-phenyl-[1,3,4]oxadiazol-2-yl)-[1,10]phenanthroline and 15.3 ml sulfuric acid (concentrate). The mixture was subsequently iced and 15.3 ml HNO3 was added into the iced mixture drop by drop. Next, 1.5 g (0.013 mol) potassium bromide was added to the iced mixture, and then the mixture solution was heated to 40° C. and stirred overnight. After completion of reaction, as shown in Scheme 3, the reaction mixture was placed into 200 ml iced water, and then NaOH(aq) was added to adjust pH value to a range from 5 to 6. Next, 150 ml CH2Cl2 was subsequently added. The organic layer was separated, dehydrated by MgSO4, concentrated, and purified by column chromatography to obtain white products 2,9-bis-(5-phenyl-[1,3,4]oxadiazol-2-yl)-[1,10]phenanthroline-5,6-dione 0.8 g (0.0016 mol, yield 20%).

Provenance & Evidence