Enantioselective Allylation of alpha,beta-Unsaturated Aldehydes with Allyltrichlorosilane Catalyzed by METHOX

[摘要]：alpha,beta-Unsaturated aldehydes 6a-j undergo an enantioselective allylation with allylic trichlorosilanes 2a,b in the presence of METHOX (4) as a Lewis basic catalyst (510 mol %) to produce the homoallylic alcohols 7a-l at good to high enantioselectivity (83-96% ee). This study shows that the reactivity scope of METHOX can be extended from aromatic to nonaromatic aldehydes.

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