Asymmetric hydrogenation of trisubstituted N-acetyl enamides derived from 2-tetralones using ruthenium-SYNPHOS catalysts: a practical synthetic approach to the preparation of β3-adrenergic agonist SR58611A
作者:Cyrielle Pautigny、Charlotte Debouit、Philippe Vayron、Tahar Ayad、Virgine Ratovelomanana-Vidal
DOI:10.1016/j.tetasy.2010.03.024
日期:2010.6
asymmetric hydrogenation of various trisubstituted enamides derived from 2-tetralones under mild reaction conditions using Ru-SYNPHOS catalysts is reported. This practical and clean method gives access to several chiral 2-aminotetralins derivatives in high isolated yields and enantiomeric excesses up to 95% depending on the substitution pattern of the aromatic ring and the nature of the amide moiety.
报道了使用Ru-SYNPHOS催化剂在温和的反应条件下衍生自2-四氢萘酮的各种三取代的烯酰胺的不对称氢化。这种实用,清洁的方法可以高分离度获得几种手性2-氨基四氢萘衍生物,对映体过量高达95%,具体取决于芳环的取代方式和酰胺部分的性质。此外,目前的方法的有效性是通过一个实际的合成方法,以对映异构纯SR58611A化合物,有效的和选择性β证明3 -肾上腺素能受体激动剂。