第 36 卷第 2 期 | | Vol. 36 No. 2 | 2006 年 4 月 | Apr 2006 |
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所属栏目:农药及中间体
邻硝基苄基溴的合成研究 |
兰世林; 刘卫东; 兰支利(湖南师范大学化学化工学院; 湖南化工研究院; 湖南长沙) |
摘 要:对以邻硝基甲苯为原料,NaBrO3/NaHSO3为溴化剂,偶氮双异丁腈(AIBN)为引发剂,制备邻硝基苄基溴的工艺路线进行了研究,在优惠的工艺条件下n(邻硝基甲苯)∶n(溴酸钠)∶n(亚硫酸氢钠)=1∶4∶4,反应温度70℃,时间2h,反应收率≥73%。该工艺具有生产成本低、操作简便和易于工业化生产等特点。 |
关键词:邻硝基苄基溴; 合成; 邻硝基甲苯 |
中图分类号:TQ246.1+2 文献标识码:A 文章编号:1009-9212(2006)02-0024-02 |
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Synthesis of O-Nitrobenzyl Bromide |
LAN Shi-lin1; LIU Wei-dong*; 2; LAN Zhi-li1(1. College of Chemistry and Chemical Engineering; Hunan Normal University; Changsha 410081; China; 2. Hunan Research Institute of Chemical Industry; Changsha 410007; China) |
Abstract:A new method of preparation o-nitrobenzyl bromide using o-nitrotoluene as raw material, NaBrO3/NaHSO3 as bromination agent and AIBN as initiator was developed,under the optimum conditions n(o-nitrotoluene) ∶ n(sodium bromate) ∶ n(sodium bisulfite)=1 ∶ 4 ∶ 4,reaction terperature 70 ℃,reaction time 2 h,the yield is up to 73%. This process is easy to scale up with lower material cost,simple and convenient operation. |
Key words:o-nitrobenzyl bromide; synthesis; o-nitrotoluene |
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基金项目:湖南省杰出青年科学基金资助项目(No.04JJ1009)
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收稿日期:2006-02-22
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