CAS: 59483-54-4; 3-Chloro-2-Nitroaniline

上下游产品

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2,6-二氯硝基苯置于氨,水体系中,化学反应生成 3-氯-2-硝基苯胺
参考文献:Wepster; Verkade,Recueil Des Travaux Chimiques Des Pays-Bas,1949,Vol. 68,P. 88,89
标题:Wepster; Verkade,Recueil Des Travaux Chimiques Des Pays-Bas,1949,Vol. 68,P. 88,89

专利信息

专利号:US-4207261-A
优先权日:1977-08-12
标题 :Process for preparing o-phenylenediamine
发明人：CSIKOS REZSO
权利人:MAGYAR ASVANYOLAJ ES FOELDGAZ
摘要:The invention relates to a process for preparing o-phenylenediamine. According to the invention 1,4-dichlorobenzene is nitrated to give 2,5-dichloro-nitrobenzene which is then reacted with an aqueous ammonium hydroxide solution and the 4-chloro-2-nitraniline obtained is subjected to catalytic hydrogenation to afford the end product which can thereafter be separated. n The process according to the invention can be accomplished with a total yield of about 90% related to the 1,4-dichlorobenzene starting compound. n o-Phenylenediamine is a valuable intermediate for instance in the synthesis of plant protecting agents and heat-resistant polymers.