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研究论文

硒介导异腈与邻氨基苯酚环化反应合成2-胺基苯并噁唑

王峥*, 兰羽琴, 周芷怡, 谭英姿, 王宗成*   

  1. 湖南科技学院化学与生物工程学院 永州 湖南 425199
  • 收稿日期:2024-07-01 修回日期:2024-08-18
  • 基金资助:
    湖南省自然科学基金项目(2024JJ7182).

Selenium Mediated Cyclization Reaction of Isonitriles with o-Aminophenols to Synthesize 2-Aminobenzoxazoles

Wang Zheng*, Lan Yuqin, Zhou Zhiyi, Tan Yingzhi, Wang Zongcheng*   

  1. Department of Biology and Chemistry, Hunan University of Science and Engineering, Yongzhou 425199, China
  • Received:2024-07-01 Revised:2024-08-18
  • Contact: *E-mail: wzhuse@126.com, wangzongch@huse.edu.cn
  • Supported by:
    Natural Science Foundation of Hunan Province (2024JJ7182).

报道了一种硒粉介导下异腈与邻氨基苯酚进行环化反应合成2-胺基苯并噁唑的方法. 该反应简单地采用硒粉为促进剂, 叔丁醇钠作为碱,在温和条件下实现了多种2-胺基苯并噁唑的绿色、高效构建. 该反应具有操作简便和无金属污染的优点. 该方法还可以实现2-胺基苯并噻唑和2-胺基苯并咪唑的合成.

关键词: 非金属, 硒, 异腈, 邻氨基苯酚, 2-胺基苯并噁唑

Selenium mediated cyclization reaction of isonitriles with o-aminophenols leading to 2-aminobenzoxazoles has been reported. The present method, which simply utilizes element selenium as promoter and tBuONa as base, provides a green and efficient approach to synthesize various 2-aminobenzoxazoles under mild conditions. This reaction has the advantages of simple operation and metal-free condition. 2-Aminobenzothiazole and 2-aminobenzimidazole could also be synthesized through this methodology.

Key words: metal-free, selenium, isonitriles, o-aminophenols, 2-aminobenzoxazoles