Unusual synthesis of phosphorus-containing 1,3-oxazine- 2,4-dione of zwitter-ionic structure by the N-reaction of cyano-carbanion with 2,4,6-trinitrofluorobenzene
Abstract:
A phosphonium zwitterion containing a carbamate moiety is a cyano-carbanion, and it reacts with 2,4,6-trinitrofluorobenzene as an N-nucleophile to form substituted oxazine-2,4-dione and ethyl fluoride.