Synlett 2023; 34(02): 153-158
DOI: 10.1055/a-1967-1073
letter

Enantio- and Diastereoselective Assembly of Multi-Layer Folding Chiral Targets via Asymmetric Catalytic Single C–C Bond Formation

Authors

  • Yangxue Liu

    a   Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
  • Hossein Rouh

    a   Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
  • Yao Tang

    a   Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
  • Guanzhao Wu

    a   Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
    b   School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. of China
  • Qingkai Yuan

    a   Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
  • Sai Zhang

    a   Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
  • Jia-Yin Wang

    c   Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry, Changzhou University, Changzhou, Jiangsu 213164, P. R. of China
  • Shengzhou Jin

    b   School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. of China
  • Ting Xu

    b   School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. of China
  • Yu Wang

    b   School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. of China
  • Junyi Pan

    b   School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. of China
  • Daniel Unruh

    a   Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
  • Guigen Li

    a   Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
    b   School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. of China

We would like to acknowledge the financial support from the Welch Foundation (USA) (D-1361-20210327) and the National Natural ­Science Foundation of China (22071102 and 91956110).


Graphical Abstract

Abstract

This work presents the first enantio- and diastereoselective assembly of multi-layer folding targets through asymmetric catalytic C–C bond formation. Pd[(S)-BINAP]Cl2 is found to be an efficient catalyst for the Suzuki–Miyaura coupling between phosphinyl bromides and benzothiadiazole boronic esters for this asymmetric assembly. The structure of the resulting chiral multi-layer folding framework is unambiguously determined by X-ray analysis and shows a nearly parallel pattern of three layers and quasi-syn and -anti configurations. Good to excellent diastereo- and enantioselectivities (up to >20:1 dr and >99:1 er) are achieved.

Supporting Information



Publication History

Received: 26 September 2022

Accepted after revision: 24 October 2022

Accepted Manuscript online:
24 October 2022

Article published online:
21 November 2022

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