Chinese Journal of Organic Chemistry    

ARTICLE

次甲基三硼试剂在非对称烯基偕二硼立体选择性合成中的应用研究

杨甜甜a,b, 陈都a,b, 张鹏*,a, 刘超*,a   

  1. a中国科学院兰州化学物理研究所 羰基合成与选择性氧化国家重点实验室 兰州 730000;
    b中国科学院大学 北京 100049
  • 收稿日期:2024-06-07 修回日期:2024-08-11

Application of Triborylmethane Reagent in the Stereoselective Synthesis of Dissymmetric gem-Diborylalkenes

Yang Tiantiana,b, Chen Dua,b, Zhang Peng*,a, Liu Chao*,a   

  1. aState Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000, P. R. China;
    bUniversity of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2024-06-07 Revised:2024-08-11
  • Contact: *E-mail: pengzhang@licp.cas.cn; chao.liu@nju.edu.cn

In this work, we successfully synthesized a novel triborylmethane reagent, which reacts with aldehydes, pentamethyldiethylenetriamine (PMDETA) as an additive, enabling the synthesis of dissymmetrical gem-diborylalkenes. The method exhibits excellent stereoselectivity and good yields. The reaction has good substrate compatibility and the two boryl moieties in the product have different reactivities. Through cross-coupling with aryl halides, the Bpin moiety can be converted into an aryl group, achieving the stereoselective synthesis of trisubstituted vinylboronates.

Key words: gem-diborylalkenes, B-O elimination, Boron reagent, Aldehydes