Enantioselective Allylation of α,β-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.
Enantioselective Allylation of α,β-Unsaturated Aldehydes with Allyltrichlorosilane Catalyzed by METHOX
作者:Andrei V. Malkov、Maciej Barłóg、Yvonne Jewkes、Jiří Mikušek、Pavel Kočovský
DOI:10.1021/jo200712p
日期:2011.6.3
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.