A new enantioselective synthesis of β-lactams via condensation of optically pure ortho-substituted benzylideneaminetricarbonylchromium complexes with ester-enolates is reported; the enantiomeric excess is higher than 98%.
报告了通过光学纯的正交取代
苄胺羰基
铬络合物与酯烯醇酸盐的缩合合成δ-内酰胺的对映体选择性新方法;对映体过量率高于 98%。