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Enantioselective remote C-H activation directed by a chiral cation

Accepted version
Peer-reviewed

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Article

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Authors

Genov, georgi 
Douthwaite, james 
lahdenpera, antti 
Gibson, david 

Abstract

Chiral cations have been used extensively as organocatalysts but their application to rendering transition metal catalyzed processes enantioselective remains rare. This is despite the success of the analogous charge-inverted strategy in which cationic metal complexes are paired with chiral anions. We report here a strategy to render a common bipyridine ligand anionic and pair its iridium complexes with a chiral cation derived from quinine. We have applied these ion-paired complexes to long-range asymmetric induction in the desymmetrization of the geminal diaryl motif, located on a carbon or phosphorus center, by enantioselective C-H borylation. In principle, numerous common classes of ligand could likewise be amenable to this approach.

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Keywords

3402 Inorganic Chemistry, 34 Chemical Sciences

Journal Title

Science

Conference Name

Journal ISSN

0036-8075
1095-9203

Volume Title

367

Publisher

AAAS

Rights

All rights reserved
Sponsorship
Engineering and Physical Sciences Research Council (EP/N005422/1)
The Royal Society (uf130004)
European Research Council (757381)
Royal Society (URF\R\191003)
Engineering and Physical Sciences Research Council (1918558)
EPSRC (1943646)