Catalytic Conjugate Addition of Allyl Groups to Styryl-Activated Enones
作者:Joshua D. Sieber、Shubin Liu、James P. Morken
DOI:10.1021/ja067878w
日期:2007.2.1
Conjugateaddition of pinacolato(allyl)boron to benzylidenealkylidene ketones is remarkably facile when catalyzed by Ni(0) and Pd(0) complexes. Simpleenones are inert to the reaction conditions, suggesting a significant activating effect by the auxiliary benzylidene unit. A comparison of different catalysts and substrates is provided, as is a mechanistic rationale, and an example of asymmetric catalysis