Chin. J. Org. Chem. ›› 2013, Vol. 33 ›› Issue (05): 943-953.DOI: 10.6023/cjoc201211035 Previous Articles     Next Articles

Reviews

扩环氮杂环卡宾前体鎓盐的合成进展

杨亮茹, 魏栋, 买文鹏, 毛璞   

  1. 河南工业大学化学化工学院 郑州 450001
  • 收稿日期:2012-11-19 修回日期:2012-12-10 发布日期:2012-12-18
  • 通讯作者: 杨亮茹,lryang@haut.edu.cn;毛璞,maopu@haut.edu.cn E-mail:lryang@haut.edu.cn;maopu@haut.edu.cn
  • 基金资助:

    国家自然科学基金(No. 21172055)、河南工业大学科技创新人才培育计划(No. 11CXRC10)和博士基金(No. 2009BS010)资助项目.

Development on the Synthesis of Ring Expanded N-Heterocyclic Carbene Precursors

Yang Liangru, Wei Dong, Mai Wenpeng, Mao Pu   

  1. School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001
  • Received:2012-11-19 Revised:2012-12-10 Published:2012-12-18
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 21172055), the Plan for Scientific Innovation Talent (No. 11CXRC10) & Doctoral Scientific Fund Project (No. 2009BS010) of Henan University of Technology.

As a kind of novel developed ligands, N-heterocyclic carbenes (NHCs) play very important roles in the development of modern organic chemistry. Early studies on NHCs have been mainly focused on imidazole derived five membered heterocycles, due to their easy accessibility and comparably stable properties. Recently, ring expanded NHCs, such as six- or seven-membered NHCs became another research hot spot due to their steric characteristics and chemical properties. Because deprotonation of the heterocyclic onium salt precursors is by far the most commonly used method to access NHCs, the synthesis of the precursors remains a key factor affecting the development of ring expanded NHCs. This review will summarize the progress on the synthesis of ring expanded NHC precursors.

Key words: N-heterocyclic carbene, ring expanded, precursor