Copper-Catalyzed Allylation of Carbonyl Derivatives Using Allyl(2-pyridyl)silanes
摘要:
We have developed an efficient copper-catalyzed allylation of carbonyl derivatives using allyl(2-pyridyl)si lanes, in which the strong directing effect of the 2-pyridyl group was observed. A useful synthesis and allylation of substituted allyl(2-pyridyl)si lanes is also described.
Yb(OTf)(3) with TMSCl or TMSOTf catalyzed an imino enereaction. The reaction of N-tosylbenzaldimine (1) with alpha-methylstyrene (2) proceeded smoothly to give homoallylic amine 3 in the presence of a catalytic amount of Yb(OTf)(3) and TMSCl. This catalytic system was successfully applied to the imino enereactions of various aldimines with alkenes. This new imino enereaction provides a unique method for