Process for preparing organophosphines

Claim 1

A PROCESS FOR PRODUCING ORGANIC PHOSPHORUS COMPOUDS WHICH COMPRISES MIXING A COMPOUND HAVING THE GENERAL FORMULA RMGCL-NQ WITH A PHOSPHORUS HALIDE SELECTED FROM THE CLASS CONSISTING OF PHOSPHORUS TRIHALIDES, PHOSPHORUS PENTAHALIDES AN HYDROCARBONPHOSPHOUS HALIDES HAVING UP TO 10 CARBON ATOMS IN EACH HYDROCARBON GROUP THEREOF, WHEREIN N IS AN INTEGER FROM 1 TO 3, R IS AN ALIPHATIC GROUP BONDED TO THE MAGNESIUM ATOM THROUGH A SATURATED CARBON ATOM AND HAVING UP TO 10 CARBON ATOMS, AND Q IS A CYCLIC ETHER CONTAINING FROM 5 TO 6 ATOMS IN THE RING AND WHEREIN (A) THERE IS ONLY ONE OXYGEN ATOM IN THE RING, (B) THE OUTER RING ATOMS ARE CARBON, (C) ONE RING CARBON SEPARATED FROM THE OXYGEN ATOM IN THE RING BY TWO CARBON ATOMS MAY BE REPLACED BY AN ALKYL SUBSTITUTED NITROGEN ATOM, (D) THE RING CONTAINS NOT MORE THAN ONE DOUBLE BOND, (E) AT LEAST NOT CARBON ATOM ADJACENT THE OXYGEN ATOMIN SAID RING BEING FREE OF ANY SUBSTITUENTS OTHER THAN HYDROGEN, (F) SAID ETHER CONTAINS NO SUBSTITUENT WHICH REACTS WITH AN ORGANOMAGNESIUM CHLORIDE.