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research article

Photoredox Catalytic Three-Component Amidoazidation of 1,3-Dienes

Forster, Dan  
•
Guo, Weisi  
•
Wang, Qian  
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September 3, 2021
Acs Catalysis

In spite of the obvious synthetic potential of functionalized allylic azides, only limited synthetic routes have been developed. We report herein a three-component 1,2-amidoazidation of 1,3-dienes. In the presence of fac-Ir(ppy)(3) under blue LED irradiation, reaction of 1-aryl substituted 1,3-dienes with N-amidopyridinium salt and trimethylsilyl azide (TMSN3) affords exclusively the 1,2-amidoazidation products. The 1-alkyl substituted counterparts undergo the same reaction with moderate to high 1,2- vs 1,4-selectivity. Reduction of this mixture with PPh3 under dynamic kinetic conditions enriches significantly one of the two isomers thanks to the facile 1,3-azide shift (Winstein rearrangement) of the allyl azides.

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Type
research article
DOI
10.1021/acscatal.1c03545
Web of Science ID

WOS:000693621800019

Author(s)
Forster, Dan  
Guo, Weisi  
Wang, Qian  
Zhu, Jieping  
Date Issued

2021-09-03

Publisher

AMER CHEMICAL SOC

Published in
Acs Catalysis
Volume

11

Issue

17

Start page

10871

End page

10877

Subjects

Chemistry, Physical

•

Chemistry

•

alkene difunctionalization

•

diene

•

aminoazidation

•

photoredox catalysis

•

amidyl radical

•

n-aminopyridinium salt

•

visible-light photoredox

•

allylic azide rearrangement

•

conjugated dienes

•

enantioselective 1,2-difunctionalization

•

intermolecular 1,2-diamination

•

regioselective diamination

•

terminal alkenes

•

palladium

•

olefins

•

diazidation

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSPN  
SB-SCGC  
Available on Infoscience
September 25, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/181641
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