113386-87-1Relevant articles and documents
A SYNTHETIC APPROACH TO 4-OXO AND 4-THIOXO AZETIDINONES FROM HETEROCUMULENES AND ESTER ENOLATES. A NOVEL SYNTHESIS OF 4-THIO-ACETOXY AZETIDIN-2-ONES.
Cainelli, Gianfranco,Giacomini, Daria,Panunzio, Mauro,Martelli, Giorgio,Spunta, Giuseppe
, p. 3593 - 3596 (2007/10/02)
The addition of the ester enolates (3) to the heterocumulenes (4), yields acyclic derivatives (5), which can be cyclized to the thio or to the oxo malonimides (1).A further elaboration of thiomalonimides (5a) and (5c) led to 4-thio-acetoxy azetidinones (1