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  4. Chiral Cyclic Alkyl Amino Carbene (CAAC) Transition-Metal Complexes: Synthesis, Structural Analysis, and Evaluation in Asymmetric Catalysis
 
research article

Chiral Cyclic Alkyl Amino Carbene (CAAC) Transition-Metal Complexes: Synthesis, Structural Analysis, and Evaluation in Asymmetric Catalysis

Madron du Vigné, Adrien
•
Cramer, Nicolai
September 16, 2022
Organometallics

Despite recent advances in the field of cyclic alkyl amino carbenes (CAACs) including a few complementary synthetic strategies affording CAACs with various substitution patterns, the application potential of chiral CAACs to efficiently catalyze asymmetric organometallic transformations remains largely underdeveloped. Herein, we describe a convenient and robust route that incorporates common chiral primary amine allowing access of a broad range of chiral CAACs precursors. The corresponding transition-metal complexes with Cu, Au, Ru, Rh, Ir, and Pd were obtained in a straightforward manner. The steric parameters of the complexes were comprehensively collected by X-ray single-crystal analysis to serve as a source of information for further ligand design. The preliminary application potential of the copper CAAC complexes was tested in asymmetric conjugate borylation of an alpha,beta-unsaturated ester providing 89:11 er, thus illustrating the potential of chiral CAACs in asymmetric catalysis.

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Type
research article
DOI
10.1021/acs.organomet.2c00351
Web of Science ID

WOS:000861893500001

Author(s)
Madron du Vigné, Adrien
Cramer, Nicolai
Date Issued

2022-09-16

Published in
Organometallics
Subjects

Chemistry, Inorganic & Nuclear

•

Chemistry, Organic

•

Chemistry

•

hoveyda-grubbs catalysts

•

ruthenium complexes

•

radical cations

•

nhc

•

oxidation

•

convenient

•

ligands

•

alkenes

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LCSA  
Available on Infoscience
October 10, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/191305
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