P-Substituted N,N'-bis-(3-oxazolidinyl-2-one)phosphoramides and process for the preparation thereof

摘要

The present invention is related to a process in which an oxazolidinone is reacted with phosphorus pentachloride and the resulting mixture is reacted with a nucleophilic agent in an inert solvent to give P-substituted N,N'-bis-(3-oxazolidinyl-2-one)phosphoramides having the general formula <IMAGE> where R1, R2, R3, R4 are each a group selected from among hydrogen, C1-C4 alkyls or an aromatic nucleus and X is a group which may be introduced by nucleophilic substitution. The invention is also related to the compounds thus obtained.