Synthesis 2021; 53(07): 1331-1340
DOI: 10.1055/s-0040-1706599
paper

Copper/GanPhos-Catalyzed 1,3-Dipolar Cycloaddition of Azo­methine Ylides: An Efficient Access to Chiral Pyrrolidine Spirocycles

Zhenjie Gan
a   School of Chemical and Printing-Dyeing Engineering, Henan University of Engineering, Zhengzhou, 451191, P. R. of China   eMail: zhenjiegan@163.com
,
Ke Li
b   College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. of China   eMail: lierqing@zzu.edu.cn
,
Hui Zhang
b   College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. of China   eMail: lierqing@zzu.edu.cn
,
Er-Qing Li
b   College of Chemistry, Green Catalysis Center, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Zhengzhou University, Zhengzhou 450001, P. R. of China   eMail: lierqing@zzu.edu.cn
› Institutsangaben
We are grateful to the National Natural Science Foundation of China (21702189), the Key Scientific and Technological Project of Henan Province (202102310004), the China Postdoctoral Science Foundation (2017M610458 and 2018T110737) and Henan University of Engineering of China for financial support of this research.


Abstract

A highly efficient copper/GanPhos-catalyzed 1,3-dipolar cyclo­addition­ of azomethine ylides is reported. This viable transformation provides a series of optically active spiro[dihydronaphthalene-2,3′-pyrrolidine]s, bearing one spiro quaternary and three tertiary stereogenic centers, in good yields and with high ee values. This protocol features high diastereo- and enantioselectivity, broad substrate scope and mild reaction conditions.

Supporting Information



Publikationsverlauf

Eingereicht: 01. Juli 2020

Angenommen nach Revision: 20. Oktober 2020

Artikel online veröffentlicht:
17. November 2020

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