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  4. Palladium-Catalyzed Enantioselective Cacchi Reaction: Asymmetric Synthesis of Axially Chiral 2,3-Disubstituted Indoles
 
research article

Palladium-Catalyzed Enantioselective Cacchi Reaction: Asymmetric Synthesis of Axially Chiral 2,3-Disubstituted Indoles

He, Yu-Ping
•
Wu, Hua
•
Wang, Qian
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2020
Angewandte Chemie International Edition

We report herein the first examples of a palladiumcatalyzed enantioselective Cacchi reaction for the synthesis of indoles bearing a chiral C2-aryl axis. In the presence of a catalytic amount of Pd(OAc)2 and (R,R)-QuinoxP* ligand, reaction of N-aryl(alkyl)sulfonyl-2-alkynylanilides with arylboronic acids under oxygen atmosphere afforded enantioenriched 2,3-disubstituted indoles in high yields and enantioselectivity. The indole ring is constructed de novo in this process and a complexation-induced chirality transfer is proposed to account for the observed enantioselectivity.

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Type
research article
DOI
10.1002/anie.201914049
Author(s)
He, Yu-Ping
Wu, Hua
Wang, Qian
Zhu, Jieping
Date Issued

2020

Publisher

Wiley-VCH Verlag GmbH

Published in
Angewandte Chemie International Edition
Volume

59

Issue

5

Start page

2105

End page

2109

Subjects

asymmetric synthesis

•

axial chirality

•

cross-coupling

•

homogeneous catalysis

•

indoles

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSPN  
Available on Infoscience
January 29, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/165011
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