Journal
NATURE CHEMISTRY
Volume 3, Issue 5, Pages 377-381Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/NCHEM.1009
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Funding
- Netherlands Organization for Scientific Research (NWO-CW)
- National Research School Catalysis (NRSC-C)
- Xunta de Galicia
- Fondo Social Europeo
- Spanish Ministry of Science and Innovation (MICINN)
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Carbon-carbon bond formation is the basis for the biogenesis of nature's essential molecules. Consequently, it lies at the heart of the chemical sciences. Chiral catalysts have been developed for asymmetric C-C bond formation to yield single enantiomers from several organometallic reagents. Remarkably, for extremely reactive organolithium compounds, which are among the most broadly used reagents in chemical synthesis, a general catalytic methodology for enantioselective C-C formation has proven elusive, until now. Here, we report a copper-based chiral catalytic system that allows carbon-carbon bond formation via allylic alkylation with alkyllithium reagents, with extremely high enantioselectivities and able to tolerate several functional groups. We have found that both the solvent used and the structure of the active chiral catalyst are the most critical factors in achieving successful asymmetric catalysis with alkyllithium reagents. The active form of the chiral catalyst has been identified through spectroscopic studies as a diphosphine copper monoalkyl species.
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