4-thioxo-2-azetidinones by cycloaddition of thioketenes with isocyanates
作者:Ernst Schaumann、Armin Röhr、Gunadi Adiwidjaja
DOI:10.1016/s0040-4039(00)92874-0
日期:1980.1
The (2+2) cycloaddition of thioketenes with isocyanates yields 4-thioxo-2-azetidinones , which can be hydrolyzed to the N-unsubstituted compound and thus used as versatile intermediates.