Cited by Additive-Controlled Divergent Synthesis of Fluorenone-4-carboxylic Acids and Diphenic Anhydrides via Rhodium-Catalyzed Oxidative Dimeric Cyclization of Aromatic Acids

Additive-Controlled Divergent Synthesis of Fluorenone-4-carboxylic Acids and Diphenic Anhydrides via Rhodium-Catalyzed Oxidative Dimeric Cyclization of Aromatic Acids DOI

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: 26(36), P. 7607 - 7613

Published: Sept. 4, 2024

A rhodium-catalyzed one-pot access to valuable polycyclic frameworks of fluorenone-4-carboxylic acids and diphenic anhydrides via the oxidative dimeric cyclization aromatic has been developed. This transformation proceeded carboxyl-assisted 2-fold C-H activation followed by intramolecular Friedel-Crafts or dehydration reactions. The silver salt additive plays a vital role in chemoselectivity products. Diphenic anhydride

Language: Английский

Chiral Bis(binaphthyl) Cyclopentadienyl Ligands for Rhodium-Catalyzed Desymmetrization of Diarylmethanes via Selective Arene Coordination DOI

Wen‐Qiang Wu,

Pei‐Pei Xie, Leyao Wang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 18, 2024

Owing to substantial advances in the past several decades, transition-metal-catalyzed asymmetric reactions have garnered considerable attention as pivotal methods for constructing chiral molecules from abundant, readily available achiral counterparts. These are largely attributed development of ligands that control stereochemistry through steric repulsion and other noncovalent interactions between functional groups or prochiral centers on substrates. However, stereocontrol weakens dramatically with increasing distance reaction site group center. Herein, we report a symphonic strategy remote Rh(III)-catalyzed benzylic C-H bond addition diarylmethanes which two aryl motifs differ at

Language: Английский

Citations

Enantiospecific Synthesis of Planar Chiral Rhodium and Iridium Cyclopentadienyl Complexes: Enabling Streamlined and Computer-Guided Access to Highly Selective Catalysts for Asymmetric C–H Functionalizations DOI