中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,2'-二氯偶氮苯 | 2,2'-dichloroazobenzene | 7334-33-0 | C12H8Cl2N2 | 251.115 |
—— | (E)-bis(2-chlorophenyl)diazene | 49795-06-4 | C12H8Cl2N2 | 251.115 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (E)-bis(2-chlorophenyl)diazene | 49795-06-4 | C12H8Cl2N2 | 251.115 |
2-Chloronitrobenzene and 2,5-dichloronitrobenzene were reduced with sodium arsenite, dextrose, lactose, maltose, sodium hydroxide and alcohols, and potassium hydroxide and ethanol. The effects of sodium hydroxide, temperature, time, Tergitol, and Lignosol were studied for the arsenite and dextrose reductions. 2-Bromonitrobenzene was also reduced with sodium arsenite and dextrose in alkaline medium. These reductions gave rise to four new phenazine derivatives. 2,4-Dinitrochlorobenzene, when reduced with sodium arsenite, in alkaline medium, yielded only 2,2′-dichloro-5,5′-dinitroazoxybenzene.
A series of dihalogenated and five tetrachloroazobenzenes were oxidized to the corresponding azoxy compounds by means of 30% hydrogen peroxide in glacial acetic acid, the reaction being carried out at about 60–70 °C, for 24 hoursAs expected, the yields, in general, obtained from azobenzenes containing substituents in the 2,2′-positions were lower than those from compounds having substituents in the 3,3′- and 4,4′-positions, which gave very good results.