Electron-Deficient Olefin Ligands Enable Generation of Quaternary Carbons by Ni-Catalyzed Cross-Coupling
Autor: | Chung‐Yang Huang, Abigail G. Doyle |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | Journal of the American Chemical Society. 137:5638-5641 |
ISSN: | 1520-5126 0002-7863 |
DOI: | 10.1021/jacs.5b02503 |
Popis: | A Ni-catalyzed Negishi cross-coupling with 1,1-disubstituted styrenyl aziridines has been developed. This method delivers valuable β-substituted phenethylamines via a challenging reductive elimination that affords a quaternary carbon. A novel electron-deficient olefin ligand, Fro-DO, proved crucial for achieving high rates and chemoselectivity for C-C bond formation over β-H elimination. This ligand is easy to access, is stable, and presents a modular framework for reaction discovery and optimization. We expect that these attributes, combined with the fact that the ligands impart distinct electronic properties to a metal, will support the invention of new transformations not previously possible using established ligands. |
Databáze: | OpenAIRE |
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