第 50 卷第 4 期Vol. 50 No. 4
2020 年 8 月Aug 2020

所属栏目:农药及中间体

N-取代苄基-3,4-二氢-1,4-苯并噁嗪的合成以及抑菌活性
谭玉华1,2,唐子龙1,2*,崔美艳2 (1. 湖南科技大学 理论有机化学与功能分子教育部重点实验室,湖南 湘潭 411201;2. 湖南科技大学 化学化工学院,湖南 湘潭 411201)
摘 要:合成了一系列N-取代苄基-1,4-苯并噁嗪类化合物。一是利用邻氨基苯酚先和1,2-二溴乙烷反应生成1,4-苯并噁嗪,然后再与芳基卤甲烷反应生成目标化合物。二是利用邻氨基苯酚与醛反应得到2-(取代苄氨基)苯酚,再与1,2-二溴乙烷反应合成目标化合物。目标化合物的抑菌活性结果表明,在25 g·mL-1浓度下,所合成的化合物都具有一定的抑菌活性,其中化合物B-6对辣椒疫霉病菌的抑制率达74.8%,对黄瓜灰霉病菌的抑制率达73.0%。
关键词:1,4-苯并噁嗪;合成;抑菌活性
中图分类号:TQ246  文献标识码:A  文章编号:1009-9212(2020)04-0012-06
Synthesis and Fungicidal Activities of N-Substituted Benzyl-3,4-dihydro-benzoxazines
TAN Yu-hua1,2, TANG Zi-long1,2*,CUI Mei-yan2 (1. Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China; 2. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China)
Abstract:A series of N-substituted benzyl 1,4-benzoxazine compounds were synthesized by two methods. In one way, reaction of 2-aminophenol with 1,2-dibromoethane gave 1,4-benzoxazine. Then, it reacted with substituted benzyl bromides affording the target products. Alternatively, reaction of 2-aminophenol with aromatic aldehydes followed by reduction gave 2-(substituted benzylamino) phenols. Then, reactions of 2-(substituted benzylamino) phenols with 1,2-dibromoethane yielded the target products. The fungicidal activities of the target compounds were evaluated. At the concentration of 25 g·mL-1, all the tested compounds showed certain activity. The inhibition activity of compound B-6 against Phytophythora capsici was 74.8%, and 73.0% for Botrytis cinerea.
Key words:1,4-benzoxazine; synthesis; fungicidal activity
基金项目:国家自然科学基金项目(21877034),湖南省教育厅项目(17A066)。
作者简介:谭玉华(1998—),男,江西赣州人,硕士研究生,主要从事有机合成化学研究(E-mail:2469428426@qq.com)。
联 系 人:唐子龙,教授,博士,主要从事有机功能分子和农药化学的研究(E-mail:zltang@hnust.edu.cn)。
收稿日期:2020-06-28