有机化学 ›› 2025, Vol. 45 ›› Issue (1): 256-266.DOI: 10.6023/cjoc202406027 上一篇    下一篇

研究论文

光诱导重氮酸酯与偕二氟烯烃[1+2]环加成合成二氟环丙烷

慕晓楠a,b, 管敏慧b, 牛雨龙b, 陈浩b,*(), 李传莹a,*(), 王磊b,c,*()   

  1. a 浙江理工大学化学系 杭州 310018
    b 台州学院高等研究院和药学院 浙江台州 318000
    c 杭州师范大学材料与化学化工学院 有机硅化学及材料技术教育部重点实验室 杭州 311121
  • 收稿日期:2024-06-20 修回日期:2024-07-25 发布日期:2024-08-23
  • 通讯作者: 陈浩, 李传莹, 王磊
  • 基金资助:
    国家自然科学基金(22071171); 浙江省自然科学基金(LZ22B020003)

Synthesis of Difluorocyclopropanes via a Photoinduced [1+2] Cycloaddition of Diazo Esters with gem-Difluoroalkenes

Xiaonan Mua,b, Minhui Guanb, Yulong Niub, Hao Chenb(), Chuanying Lia(), Lei Wangb,c()   

  1. a Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018
    b Advanced Research Institute & School of Pharmaceutical Sciences, Taizhou University, Taizhou, Zhejiang 318000
    c Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121
  • Received:2024-06-20 Revised:2024-07-25 Published:2024-08-23
  • Contact: *E-mail: haochenchemical@163.com; licy@zstu.edu.cn; leiwang88@hotmail.com
  • Supported by:
    National Natural Science Foundation of China(22071171); Natural Science Foundation of Zhejiang Province(LZ22B020003)

在可见光促进下, 偕二氟烯烃与芳基重氮酸酯的[1+2]环加成为合成1,1-偕二氟环丙烷提供了一条有效而重要的途径. 反应条件温和、操作简单. 系列重氮酸酯和偕二氟烯烃都能适用于该反应(36个例子), 并以良好的收率和优异的非对映选择性(>20∶1)得到相应的目标产物.

关键词: 有机光催化, 偕二氟烯烃, 重氮酸酯, [1+2]环加成, 1,1-偕二氟环丙烷

A visible-light-promoted [1+2] cycloaddition of gem-difluoroalkenes with aryl diazo esters provides an efficient and important route to 1,1-difluorocyclopropanes. The reaction conditions are mild, and the operation is very simple. A number of diazo esters and gem-difluoroalkenes are suitable for this reaction (36 examples), providing the desired products in good yields with excellent diastereoselectivity (>20∶1).

Key words: organic photochemistry, gem-difluoroalkenes, diazo esters, [1+2] cycloaddition, 1,1-difluorocyclopropanes