Nickel-Catalyzed Asymmetric Addition of Alkyne CH Bonds across 1,3-Dienes Using Taddol-Based Chiral Phosphoramidite Ligands
作者:Masamichi Shirakura、Michinori Suginome
DOI:10.1002/anie.201001188
日期:——
Enantioenriched 3‐methyl‐1,4‐enynes are the products of the title reaction. The terminal α‐siloxy‐sec‐alkyl groups were then converted into γ‐oxoalkyl groups by rhodium‐catalyzed conjugate alkynyl addition to α,β‐unsaturated ketones through cleavage of the alkynyl CC bond.