第 46 卷第 4 期 | | Vol. 46 No. 4 | 2016 年 8 月 | Aug 2016 |
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所属栏目:功能材料
水相法合成3,6-二溴-9-苯基-9H-咔唑的研究 |
张海涛
(中昊(大连)化工研究设计院有限公司,辽宁 大连 116023) |
摘 要:以9-苯基咔唑为原料,以二氯甲烷为辅助溶剂,利用水相法经N-溴代丁二酰亚胺(NBS)亲电取代反应合成目标产物3,6-二溴-9-苯基-9H-咔唑。在n(9-苯基咔唑)∶n(NBS)=1.00∶2.10,反应温度25℃,反应时间120 min的优化反应条件下,目标产物3,6-二溴-9-苯基-9H-咔唑的收率为90.6%。 |
关键词:9-苯基咔唑;NBS;水相法;辅助溶剂;二氯甲烷 |
中图分类号:O626.21 文献标识码:A 文章编号:1009-9212(2016)04-0078-03 |
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Synthesis of 3,6-Dibromo-9-phenyl-9H-carbazole in Water |
ZHANG Hai-tao
(China Haohua(Dalian)Research & Design Institute of Chemical Industry Co., Ltd., Dalian 116023, China) |
Abstract:3,6-Dibromo-9-phenyl-9H-carbazole was synthesized in water medium using 9-phenylcarbazole as the raw material and NBS as electrophilic substitution reaction reagent. Dichloromethane was used as the secondary solvent, The optimal reaction conditions is: n(9-phenylcarbazole):n(NBS)=1:2.1, the reaction temperature is 25℃, the reaction time is 120 min. The yield of 3,6-dibromo-9-phenyl-9H-carbazole is 90.6%. |
Key words:9-phenylcarbazole; NBS; water medium; secondary solvent; dichloromethane |
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作者简介:张海涛(1979-),男,山东潍坊人,高级工程师,研究方向:紫外线吸收剂合成(E-mail:13940807910@163.com)。
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收稿日期:2016-07-13
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