有机化学 ›› 2018, Vol. 38 ›› Issue (2): 291-303.DOI: 10.6023/cjoc201708055 上一篇    下一篇

所属专题: 碳氢活化合辑2018-2019

综述与进展

基于导向策略的C—H键活化反应的研究进展

汪珊a, 严沣a, 汪连生a, 朱磊a,b   

  1. a 湖北工程学院化学与材料科学学院 孝感 432000;
    b 生物质资源转化利用湖北省协同创新中心 孝感 432000
  • 收稿日期:2017-08-26 修回日期:2017-09-21 发布日期:2017-10-24
  • 通讯作者: 汪连生, 朱磊 E-mail:lei.zhu@hbeu.edu.cn;wangls@hbeu.edu.cn
  • 基金资助:

    国家自然科学基金(Nos.21774029,21304032)和湖北省自然科学基金(Nos.2016CFB104,2015CFC772)资助项目.

Recent Advances in Directing Group-Induced C-H Activation Reactions

Wang Shana, Yan Fenga, Wang Lianshenga, Zhu Leia,b   

  1. a School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan 432000;
    b Hubei Collaborative Innovation Center for Biomass Conversion and Utilization, Xiaogan 432000
  • Received:2017-08-26 Revised:2017-09-21 Published:2017-10-24
  • Contact: 10.6023/cjoc201708055 E-mail:lei.zhu@hbeu.edu.cn;wangls@hbeu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 21774029, 21304032) and the Natural Science Foundation of Hubei Province (Nos. 2016CFB104, 2015CFC772).

C—H键是有机化合物中存在最广泛的化学键之一.过渡金属催化的C—H键活化反应具有反应效率高、原子经济性高、产生废物少等优点,因此发展新的C—H键的转化类型和方法十分重要.由于分子内经常存在高度稳定且活性相似的C—H键,所以导致传统的C—H键活化反应的区域选择性很差,难以真正被应用于天然产物或者药物分子等的合成中.向反应体系中引入导向基团后,不仅可以大大提高C—H键官能化反应的活性,更可以提高区域选择性,实现高效合成单一目标产物的目的.因此,探索导向基导向的C—H键直接官能化反应具有重要意义.将从不同导向原子的角度介绍近十年导向基辅助的C—H键活化反应,并对其作用机理进行相关阐述.

关键词: C-H活化, 区域选择性, 导向基团, 过渡金属

C-H bonds are widely existed in almost all the organic compounds. Transition-metal-catalyzed C-H functionalizations usually have high reaction efficiency and high atom-economy. However, traditional strategies based on such transition-metal catalyzed C-H activations generally result in poor selectivities, because C-H bonds in one molecule facilely display similar reactivity. It is difficult to be utilized in preparation of natural products, pharmaceuticals and biomolecules. However, directing group can induce the metal to activate proximal C-H bonds via cyclometallated intermediates, improve the regioselectivity of the transformations. Therefore, it is extremely significant to deveplop auxiliary-induced C-H bonds activations. The research progress of directing group-induced C-H activation reactions and mechanisms for recent ten years are sumarized.

Key words: C-H activation, regioselectivity, directing group, transition-metal