Synthesis of optically active .beta.-lactams by the photolytic reaction of imines with optically active chromium carbene complexes
作者:Louis S. Hegedus、Rene Imwinkelried、Marie Alarid-Sargent、Dalimil Dvorak、Yoshitaka Satoh
DOI:10.1021/ja00159a034
日期:1990.1
Optically active chromium carbene complexes utilizing (S)-valine- and (R)-phenylglycine-derived chiral auxillaries were synthesized and subjected to photolytic reaction with a number of imines. Optically active β-lactams were produced in good to excellent chemical yield and with high diastereoisomeric excess. Procedures for removal of the chiral auxilliary to produce the optically active free amino
利用 (S)-缬氨酸和 (R)-苯基甘氨酸衍生的手性助剂合成了光学活性铬卡宾配合物,并与多种亚胺进行光解反应。光学活性 β-内酰胺以良好到极好的化学产率和高非对映异构体过量生产。开发了去除手性助剂以生产光学活性游离氨基 β-内酰胺的程序