Achieving Nickel Catalyzed C-S Cross-Coupling under Mild Conditions Using Metal-Ligand Cooperativity

Autor: Nanda D. Paul, Rina Sikari, Suman Sinha, Rakesh Mondal, Anannya Saha, Siuli Das, Gargi Chakraborty
Rok vydání: 2019
Předmět:
Zdroj: The Journal of organic chemistry. 84(7)
ISSN: 1520-6904
Popis: A simple and efficient approach of C-S cross-coupling of a wide variety of (hetero)aryl thiols and (hetero)aryl halides under mild conditions, mostly at room temperature, catalyzed by well-defined singlet diradical Ni(II) catalysts bearing redox noninnocent ligands is reported. Taking advantage of ligand centered redox events, the high-energetic Ni(0)/Ni(II) or Ni(I)/Ni(III) redox steps were avoided in the catalytic cycle. The cooperative participation of both nickel and the coordinated ligands during oxidative addition/reductive elimination steps allowed us to perform the catalytic reactions under mild conditions.
Databáze: OpenAIRE