Chin. J. Org. Chem. ›› 2018, Vol. 38 ›› Issue (5): 1138-1146.DOI: 10.6023/cjoc201712039 Previous Articles     Next Articles

Articles

四嗪化合物与环辛炔的[4+2]环加成反应及其在构建轴手性哒嗪骨架中的应用

蔡正军a, 高建保b, 李白a, 钟源a, 丰幸a, 薛吉军c, 蒋先兴a   

  1. a 中山大学药学院 广州 510006;
    b 山东汉兴医药科技有限公司 昌邑 261312;
    c 兰州大学化学化工学院 兰州 730000
  • 收稿日期:2017-12-27 修回日期:2018-01-29 发布日期:2018-02-11
  • 通讯作者: 薛吉军,E-mail:jiangxx5@mail.sysu.edu.cn;蒋先兴,E-mail:xuejj@lzu.edu.cn E-mail:jiangxx5@mail.sysu.edu.cn;xuejj@lzu.edu.cn
  • 基金资助:

    国家自然科学基金(Nos.91413107,21432003)、“青年千人”计划及中央高校基本科研业务费专项资金(No.lzujbky-2014-61)资助项目.

Application of [4+2]Cycloaddition Reaction of Tetrazine with Cyclooctyne in the Construction of Pyridazine Structure with Axial Chirality

Cai Zhengjuna, Gao Jianbaob, Li Baia, Zhong Yuana, Feng Xinga, Xue Jijunc, Jiang Xianxinga   

  1. a School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006;
    b Shandong Hanxing Medical Technology Co., Ltd., Changyi 261312;
    c College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000
  • Received:2017-12-27 Revised:2018-01-29 Published:2018-02-11
  • Contact: 10.6023/cjoc201712039 E-mail:jiangxx5@mail.sysu.edu.cn;xuejj@lzu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 91413107, 21432003), the Thousand Young Talents Program and the Fundamental Research Funds for the Central Universities of China (No. lzujbky-2014-61).

The application of [4+2] cycloaddition reaction of tetrazine with cyclooctyne in the construction of pyridazine structure with axial chirality was studied. The inverse electronic demand Diels-Alder reaction of tetrazine bearing bulky groups with macrocyclic tension’s cyclooctyne could take place under catalyst-free conditions in dichloromethane. The reaction underwent a six-membered bridged transition state, gently release a molecule of nitrogen to get axial chiral pyridazine structure. The transformation of the reaction can be determined by the change of color. The reaction could get potential axial chiral pyridazine structure with high yiled (95%) under mild conditions.

Key words: tetrazine, axial chirality, the inverse electronic demand Diels-Alder reaction, cyclooctyne