3-硝基-N-乙基咔唑单溴化反应的研究

Study on Monobromination of 3-Nitro-N-ethylcarbazole

研究了在不同的溶剂和后处理方式下３－硝基－Ｎ－乙基咔唑单溴化的三种方法：（１）冰醋酸－水稀释法；（２）冰醋酸－蒸馏法；（３）１，２－二氯乙烷－蒸馏法。比较了三种方法各自的优缺点，认为（３）法是较佳的工业化路线。

Abstract Three monobromination methods of 3-nitro-N-ethylcarbazole was studied according to solvent used and separation process.Method 1:Acetic acid-diluted with water;2:Acetic acid-decantation;3:1,2-dichloroethane-decantation.The advantages and disadvantages of the three methods were discusssed.It was considered that Method 3 be the best route in the future industrial production.