Asymmetric Organocatalytic Conjugate Addition of Diarylphosphane Oxides to Chalcones
作者:Alessio Russo、Alessandra Lattanzi
DOI:10.1002/ejoc.201001308
日期:2010.12
The first example of a convenient and enantioselective asymmetric conjugate addition of diarylphosphane oxides to chalcones is reported. By using commercially available dihydroquinine as the organocatalyst and diphenylphosphane oxide as the nucleophile, the adducts were isolated in high yield and up to 89 % ee. The final adducts can be easily recrystallized to enantiopure material.
报告了二芳基膦氧化物与查耳酮的方便和对映选择性不对称共轭加成的第一个例子。通过使用市售的二氢奎宁作为有机催化剂和二苯基氧化膦作为亲核试剂,以高产率和高达 89% ee 分离出加合物。最终的加合物可以很容易地重结晶为对映体纯材料。