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  4. Dual Photoredox and Copper Catalysis: Enantioselective 1,2-Amidocyanation of 1,3-Dienes
 
research article

Dual Photoredox and Copper Catalysis: Enantioselective 1,2-Amidocyanation of 1,3-Dienes

Forster, Dan  
•
Guo, Weisi  
•
Wang, Qian  
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2023
ACS Catalysis

Dual photoredox−transition-metal catalysis has emerged as a powerful tool for the development of chemical transformations. However, its application in the selective difunctionalization of 1,3-dienes remains essentially unexploited. By the synergistic action of photoredox and copper catalysts, we report herein an enantioselective 1,2-amidocyanation of 1,3-dienes. Visible-light irradiation of a chloroform solution of conjugated dienes, N-Boc-amidopyridinium salts, and TMSCN in the presence of a catalytic amount of fac-Ir(ppy)3, Cu(OTf)2·xH2O, and a chiral Box ligand affords three-component adducts in good to high yields with high regio- and enantioselectivities. A L*CuCN complex, fully characterized spectroscopically and confirmed by X-ray crystallographic analysis, is able to catalyze the transformation, therefore supporting an inner-sphere cyanide transfer pathway.

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Type
research article
DOI
10.1021/acscatal.3c01782
Author(s)
Forster, Dan  
Guo, Weisi  
Wang, Qian  
Zhu, Jieping  
Date Issued

2023

Published in
ACS Catalysis
Volume

13

Issue

11

Start page

7523

End page

7528

Subjects

asymmetric synthesis

•

alkene difunctionalization

•

amidocyanation

•

amidyl radical

•

dual catalysis

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSPN  
FunderGrant Number

FNS

SNSF 180544

Available on Infoscience
June 2, 2023
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/197879
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