Synthesis 2024; 56(22): 3412-3420
DOI: 10.1055/a-2230-4562
paper
Dual Catalysis

Stereodivergent 1,5-Conjugate Addition with Iminoesters via Pd/Cu Dual Catalysis

Zi-Jiang Yang
a   College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. of China
b   State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, P. R. of China
,
Zhi-Tao He
a   College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. of China
b   State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai, 200032, P. R. of China
c   School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, P. R. of China
› Institutsangaben
We acknowledge the Science and Technology Commission of Shanghai Municipality (22ZR1475200), Natural Science Foundation of Ningbo (2023J036), National Natural Science Foundation of China (NSFC 22071262, 22371292), and Shanghai Institute of Organic Chemistry for financial support.


Abstract

The first stereodivergent umpolung 1,5-conjugate addition reaction via synergistic Pd/Cu catalysts is reported. By dictating the absolute configuration of each chiral ligand ligated to corresponding metals, all four stereoisomers of the products are easily achieved. A series of amino acid moieties are introduced to the γ-position of the conjugated esters in high yields with excellent diastereoselectivities and enantioselectivities. The downstream transformations highlight the synthetic value of the method.

Supporting Information



Publikationsverlauf

Eingereicht: 25. November 2023

Angenommen nach Revision: 15. Dezember 2023

Accepted Manuscript online:
15. Dezember 2023

Artikel online veröffentlicht:
19. Januar 2024

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