Abstract
A direct catalytic asymmetric addition of allyl cyanide to ketones with a bimetallic catalytic system comprising (R,R)-Ph-BPE/[Cu(CH3CN) 4]ClO4/LiOAr is described. Exclusive γ-addition of allyl cyanide was observed, affording optically enriched tertiary alcohols bearing Z-configured α,ß-unsaturated nitriles. The reaction proceeded under proton-transfer conditions, utilizing soft Lewis acid/hard Brønsted base bifunctional catalysis. The applicability of the reaction to aromatic, heteroaromatic, and aliphatic ketones demonstrates its wide substrate generality.
Original language | English |
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Pages (from-to) | 3195-3197 |
Number of pages | 3 |
Journal | Journal of the American Chemical Society |
Volume | 131 |
Issue number | 9 |
DOIs | |
Publication status | Published - Mar 11 2009 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry