【摘要】 采用50%发烟硫酸磺化对硝基甲苯,生成2-甲基-5-硝基苯磺酸,在无催化剂的条件下,用次氯酸钠溶液氧化缩合2-甲基-5-硝基苯磺酸,生成4,4′-二硝基二苯乙烯-2,2′-二磺酸,再用盐酸铁粉还原得4,4′-二氨基二苯(烯-2,2′-二磺酸(简称 DSD 酸).更多还原

【Abstract】 2-methyl-5-nitrobenzenesulfonic acid is produced by sulfnating nitrobenzene with 50% fuming sulfuric acid. Then it is oxidized using the solvent of sodium hypochlorite without catalyst,and yields 4,4’-dinitrodiphenylethylene-2, 2’disulfonic acid which is reduced to 4,4’-diaminodiphenylethylene-2,2’-disulfonic acid (DSI) acid) with hydrochloric acid and Fe powder.更多还原