Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 17, Issue 10, Pages 2965-2971Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201002386
Keywords
catalysis; cross-coupling; ligand; palladium; tosylate
Categories
Funding
- DFG
- Alexander-von-Humboldt foundation
- State of Lower Saxony
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Palladium complexes of representative heteroatom-substituted secondary phosphine oxide (HASPO) pre-ligands were synthesized and fully characterized, including X-ray crystal structure analysis. Importantly, these well-defined complexes served as highly efficient catalysts for Kumada-Corriu cross-coupling reactions of aryl, alkenyl, and even heteroaryl tosylates. Particularly, an air-stable catalyst derived from inexpensive PinP(O)H displayed a remarkably high catalytic efficacy, which resulted in cross-couplings at low catalyst loadings under exceedingly mild reaction conditions with ample scope.
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