Mary J. Meegan, Caroline M. Waldron, Raymond D. Keaveny and Anthony D. Neary
3-Vinyl- and 3-isopropenyl-azetidin-2-ones are transformed into the corresponding 4-acetoxy-3-[1-(2-arylamino-1-hydroxy)ethyl]azetidin-2-ones and 4-acetoxy-3-[1-(2-arylamino-1-hydroxy)propyl]azetidin-2-ones, intermediates for the synthesis of novel carbapenems.