| abstract |
Phosphorus compounds of the Formula I wherein each of R4 and R5 is a chlorine, bromine or iodine atom or an alkyl, aryl, alkoxy or aryloxy group, R1 is a hydrogen atom or an alkyl group, A is an oxygen or sulphur atom and y is 1 to 18, are obtained by reacting the appropriate 3 - alkyl - 4 - hydroxy - phenylalkyl halides of the formula alkyl(HO)C 6 H 3 R1-C y H 2y X1 with phosphorus halides, X2-PR2R3, wherein X1 and X2 are chlorine, bromine or iodine atoms and each of R2 and R3 is a chlorine, bromine or iodine atom or an alkyl, alkoxy, aryl or aryloxy group, in the presence of Lewis acids and non- aqueous inert aprotic solvents and adding sufficient water or hydrogen sulphide to decompose the complexes so formed. Reference has been directed by the Comptroller to Specification 948,880. |