Michael Reactions of Titanium Enolates of Glycolic Acid Derivatives with the Weinreb and Morpholine Amides of Acrylic Acid
作者:Anna Olivella、Carles Rodríguez-Escrich、Fèlix Urpí、Jaume Vilarrasa
DOI:10.1021/jo702240n
日期:2008.2.1
The conjugate additions of titanium enolates of glycolate-derived chiral oxazolidin-2-ones to various Michael acceptors have been evaluated as an entry to enantiopure 1,2,5-trioxygenated and related synthons. α,β-unsaturated Weinreb and morpholine amides do react under suitable conditions and their adducts can be converted to diverse C1−C5 chiral fragments.
已经评估了乙醇酸酯衍生的手性恶唑烷丁-2-酮的烯醇钛钛酸酯向各种迈克尔受体的共轭加成,作为对映体纯的1,2,5-三加氧和相关合成子的入口。α,β-不饱和Weinreb和吗啉酰胺在合适的条件下会发生反应,并且它们的加合物可以转化为不同的C1-C5手性片段。