摘要
本试验研究以邻硝基氯苯为原料，进行了咔唑合成的研究，为工业化生产取得了一些有价值的数据。表２。
Abstract The iron dust, hydrochloric acid are added into a reaction flask, raised to 95℃, and added with 2,2dinitrobiphenyl in 1 hr to prepare 2,2diaminobiphenyl. The condensation is under nitrogen carried out with polytetrafluoroethylene sulfonic acid resin as a catalyst at 200～300℃. The total yield is 82.3%～89.1%. The obtained product may be used as the dyestuff intermediate for leather.2 tables,6 references
出处
《皮革化工》
1998年第4期18-20,共3页
Leather Chemicals
