Highly Diastereoselective Synthesis of Functionalized β-Lactams
摘要:
An efficient method based, on the acid chloride-imine reaction, is reported for the preparation of 1,3-disubstituted beta-lactams in good yield and with high selectivity.
Mild and convenient one-pot synthesis of β-lactams by condensation of titanium enolates of 2-pyridylthioesters with imines.
作者:Mauro Cinquini、Franco Cozzi、Pier Giorgio Cozzi、Emanuela Consolandi
DOI:10.1016/s0040-4020(01)96198-8
日期:1991.10
Treatment of 2-pyridylthioesters with triethylamine in the presence of titanium tetrachloride affords titanium enolates that add to imines to give beta-lactams in fair to excellent yields with moderate to good stereoselectivity.