Synthesis of amino-.beta.-lactams by the photolytic reaction of imines with pentacarbonyl[(dibenzylamino)carbene]chromium(0)
作者:Christian Borel、Louis S. Hegedus、Jurg Krebs、Yoshitaka Satoh
DOI:10.1021/ja00238a018
日期:1987.2
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
Opticallyactivechromium carbene complexes utilizing (S)-valine- and (R)-phenylglycine-derived chiral auxillaries were synthesized and subjected to photolytic reaction with a number of imines. Opticallyactive 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 opticallyactive free amino