Issue 79, 2022

Catalytic asymmetric synthesis of medium-sized bridged biaryls

Abstract

Despite the persistent presence of medium-sized (seven- to nine-membered) scaffolds in natural products and biologically active molecules, their asymmetric syntheses have always been considered a formidable task; therefore, they have remained underdeveloped when compared to the enantioselective synthesis of five- and six-membered ring scaffolds. One important class of such medium-sized ring frameworks includes seven- to nine-membered biaryl bridged carbo- and heterocycles. These medium-ring-sized biaryl frameworks possess more configurational stability than the related smaller ring structures and are common features of valuable natural products, bioactive compounds, chiral catalysts, and molecular motors. Due to these exciting properties and broad applications, over the last few years, the catalytic enantioselective synthesis of medium-sized bridged biaryls has seen an upsurge. This highlight article describes the development of organocatalysed and transition-metal catalysed transformations for procuring seven-, eight-, and nine-membered bridged biaryls bearing a chiral axis/one or more asymmetric carbon centres.

Graphical abstract: Catalytic asymmetric synthesis of medium-sized bridged biaryls

Article information

Article type
Highlight
Submitted
18 Jul 2022
Accepted
08 Sep 2022
First published
09 Sep 2022

Chem. Commun., 2022,58, 11031-11044

Catalytic asymmetric synthesis of medium-sized bridged biaryls

N. Kotwal, Tamanna and P. Chauhan, Chem. Commun., 2022, 58, 11031 DOI: 10.1039/D2CC04000J

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