Highly Enantioselective Iridium-Catalyzed Hydrogenation of α,β-Unsaturated Esters
作者:Jia-Qi Li、Xu Quan、Pher G. Andersson
DOI:10.1002/chem.201200907
日期:2012.8.20
α,β‐Unsaturated esters have been employed as substrates in iridium‐catalyzed asymmetric hydrogenation. Full conversions and good to excellent enantioselectivities (up to 99 % ee) were obtained for a broad range of substrates with both aromatic‐ and aliphatic substituents on the prochiral carbon. The hydrogenated products are highly useful as building blocks in the synthesis of a variety of natural
在铱催化的不对称氢化反应中,α,β-不饱和酯已被用作底物。对于在手性碳上同时具有芳族和脂族取代基的多种底物,可实现完全转化和良好至优异的对映选择性(高达99% ee)。氢化产物在多种天然产物和药物的合成中作为构建基非常有用。