Synlett 2015; 26(06): 709-715
DOI: 10.1055/s-0034-1380121
synpacts
© Georg Thieme Verlag Stuttgart · New York

Copper-Catalyzed Cross-Couplings of Organometallic Reagents with and without Assistance from PN Ligands

Ramesh Giri*
Department of Chemistry and Chemical Biology, The University of New Mexico, 300 Terrace St. NE, Albuquerque, NM 87131, USA   Email: rgiri@unm.edu
,
Surendra Thapa
Department of Chemistry and Chemical Biology, The University of New Mexico, 300 Terrace St. NE, Albuquerque, NM 87131, USA   Email: rgiri@unm.edu
› Author Affiliations
Further Information

Publication History

Received: 28 November 2014

Accepted after revision: 27 December 2014

Publication Date:
05 February 2015 (online)


Abstract

In this article, recent developments of copper-catalyzed cross-couplings are discussed. Critical results that demonstrate the effectiveness of copper catalysts, ligated by P,N-ligands, for cross-coupling reactions are presented to showcase the potential emergence of copper as an alternative to palladium. The observation that the reaction of heteroaryl coupling partners also proceeds under ‘ligand-free’ conditions holds great promise for developing copper catalysis as a complementary system to palladium catalysis in areas in which palladium either performs unsatisfactorily or requires custom-designed ligands.

1 Introduction

2 Rationale for the Use of Hybrid Bidentate Ligands

3 Coupling with Organosilicon Reagents

4 Coupling with Organoboron Reagents

5 Coupling with Organoindium Reagents

6 General Catalytic Cycle

7 Conclusion and Perspectives