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

所屬欄目:農藥及中間體

N-取代芐基-3,4-二氫-1,4-苯并噁嗪的合成以及抑菌活性
譚玉華1,2,唐子龍1,2*,崔美艷2 (1. 湖南科技大學(xué) 理論有機化學(xué)與功能分子教育部重點(diǎn)實(shí)驗室,湖南 湘潭 411201;2. 湖南科技大學(xué) 化學(xué)化工學(xué)院,湖南 湘潭 411201)
摘 要:合成了一系列N-取代芐基-1,4-苯并噁嗪類(lèi)化合物。一是利用鄰氨基苯酚先和1,2-二溴乙烷反應生成1,4-苯并噁嗪,然后再與芳基鹵甲烷反應生成目標化合物。二是利用鄰氨基苯酚與醛反應得到2-(取代芐氨基)苯酚,再與1,2-二溴乙烷反應合成目標化合物。目標化合物的抑菌活性結果表明,在25 g·mL-1濃度下,所合成的化合物都具有一定的抑菌活性,其中化合物B-6對辣椒疫霉病菌的抑制率達74.8%,對黃瓜灰霉病菌的抑制率達73.0%。
關(guān)鍵詞:1,4-苯并噁嗪;合成;抑菌活性
中圖分類(lèi)號:TQ246  文獻標識碼:A  文章編號: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
基金項目:國家自然科學(xué)基金項目(21877034),湖南省教育廳項目(17A066)。
作者簡(jiǎn)介:譚玉華(1998—),男,江西贛州人,碩士研究生,主要從事有機合成化學(xué)研究(E-mail:2469428426@qq.com)。
聯(lián) 系 人:唐子龍,教授,博士,主要從事有機功能分子和農藥化學(xué)的研究(E-mail:zltang@hnust.edu.cn)。
收稿日期:2020-06-28
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