作者:Edward Grochowski、Krzysztof Pupek
DOI:10.1016/s0040-4020(01)82327-9
日期:1991.8
Stereoselective syntheses of trans-3,4,4-substituted-azetidin-2-ones from alkylthioimidates are described. Reduction of these compounds gave stereoselectively cis-4-alkyl-azetidin-2-ones which could be useful intermediates for preparation of biologically active B-lactams.