第 54 卷第 1 期 | | Vol. 54 No. 1 | 2024 年 2 月 | Feb 2024 |
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所属栏目:医药及中间体
5-溴-2,3-二氢苯并呋喃-7-磺酰氯的合成 |
李 骁1,程仁宇1,冯 欣1,高正亚1,张茂风1,2*
(1. 苏州卫生职业技术学院 药学院,江苏 苏州 215009;2. 江苏省肿瘤小分子靶向治疗及伴随诊断工程研究中心,江苏 苏州 215009) |
摘 要:以苯酚为原料,经取代、环合、溴代和氯磺化4步反应合成了含有二氢苯并呋喃骨架的杂环类磺酰氯衍生物5-溴-2,3-二氢苯并呋喃-7-磺酰氯。针对氯磺化步骤优化了工艺条件。优化条件为:n(5-溴-2,3-二氢苯并呋喃)∶n(氯磺酸)=1∶6、反应温度25 ℃、反应时间2.5 h。优化条件下目标产物收率达81%,其结构经1H NMR、13C NMR、质谱和IR确证。 |
关键词:杂环;磺酰氯;二氢苯并呋喃 |
中图分类号:O626.11 文献标识码:A 文章编号:1009-9212(2024)01-0021-04 |
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Synthesis of 5-Bromo-2, 3-dihydrobenzofuran-7-sulfonyl Chloride |
LI Xiao1, CHENG Ren-yu1, FENG Xin1, GAO Zheng-ya1, ZHANG Mao-feng1, 2*
(1. College of Pharmacy, Suzhou Vocational Health College, Suzhou 215009, China; 2. Jiangsu Engineering Research Center for Small Molecule Targeted Therapy and Companion Diagnosis, Suzhou 215009, China) |
Abstract:5-Bromo-2, 3-dihydrobenzofuran-7-sulfonyl chloride as a derivative of heterocyclic sulfonyl chloride containing a dihydrobenzofuran skeleton was synthesized from phenol through a four-step reaction including substitution, cyclization, bromination and chlorosulfonation. The synthetic conditions were optimized for the chlorosulfonation step. The optimized conditions were as follows: the molar ratio of n(5-bromo-2,3-dihydrobenzofuran)∶n(chlorosulfonic acid) =1∶6, under the reaction temperature of 25 ℃, reaction time of 2.5 h. The yield under the optimized conditions reached 81%. The target product was confirmed by 1H NMR, 13C NMR, HRMS, and IR. |
Key words:heterocycles; sulfonyl chloride; dihydrobenzofuran |
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基金项目:江苏高校“青蓝工程”项目(苏教师函﹝2023﹞27号),苏州科技计划项目(基础研究计划-医学应用基础研究)(SKY2023135),苏州卫生职业技术学院科技创新团队项目(SZWZYTD202204)。
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作者简介:李 骁(1986—),男,安徽铜陵人,讲师,硕士,研究方向:药物制剂与合成(E-mail:daxiaoge68@126.com)。
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联 系 人:张茂风,讲师,博士,研究方向:药物设计与药物合成(E-mail:zhang_maofeng@163.com)。
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收稿日期:2023-11-09
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