Journal
ACS CATALYSIS
Volume 2, Issue 6, Pages 1232-1234Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cs300146x
Keywords
nonlinear effects; ligand design; asymmetric catalysis; alkynes; Cu
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Funding
- ETH Zurich
- Swiss National Science Foundation
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A strong positive NLE has been observed with mixtures of ligand diastereomers in the addition of terminal allcynes to Medrums' acid-derived acceptors and imminium ions using PINAP ligands. This NLE is such that the diastereomeric ligand mixture obtained from synthesis (10-26% de) can be employed directly in the conjugate addition reaction or imminium additions, furnishing products in high ee.
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