Volume 134, Issue 7 e202114146
Zuschrift

Mechanochemical Solvent-Free Suzuki–Miyaura Cross-Coupling of Amides via Highly Chemoselective N−C Cleavage

Dr. Jin Zhang

Corresponding Author

Dr. Jin Zhang

College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China

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Pei Zhang

Pei Zhang

College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China

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Lei Shao

Lei Shao

College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China

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Ruihong Wang

Ruihong Wang

Institute of Frontier Science and Technology Transfer, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China

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Yangmin Ma

Yangmin Ma

College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021 China

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Prof. Michal Szostak

Corresponding Author

Prof. Michal Szostak

Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey, 07102 United States

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First published: 07 December 2021

Abstract

Although cross-coupling reactions of amides by selective N−C cleavage are one of the most powerful and burgeoning areas in organic synthesis due to the ubiquity of amide bonds, the development of mechanochemical, solid-state methods remains a major challenge. Herein, we report the first mechanochemical strategy for highly chemoselective, solvent-free palladium-catalyzed cross-coupling of amides by N−C bond activation. The method is conducted in the absence of external heating, for short reaction time and shows excellent chemoselectivity for σ N−C bond activation. The reaction shows excellent functional group tolerance and can be applied to late-stage functionalization of complex APIs and sequential orthogonal cross-couplings exploiting double solventless solid-state methods. The results extend mechanochemical reaction environments to advance the chemical repertoire of N−C bond interconversions to solid-state environmentally friendly mechanochemical methods.

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