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US 5,550,295 AGranted
Preparation of arylalkyl phosphines, phosphine oxides or phosphine sulfides
AssigneeCytec Technology Corp.
InventorJohn H. Hillhouse
Life of this patent
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Abstract
Arylalkyl phosphines, phosphine oxides or phosphine sulfides are prepared by reacting an alkyl phosphine, phosphine oxide or phosphine sulfide with an arylhalide in the presence of a zero valence palladium catalyst.
Claims11
A process for the preparation of a compound having the formula ##STR3## wherein X is O or S, n is 0 or 1;
- Ar is a substituted or unsubstituted aryl radical, R is a substituted or unsubstituted alkyl radical, x is 0 or 1 and y and z are 1 or 2, with the proviso that when x is 0, only one of y and z is 2 and when x is 1, both of y and z are 1, which comprises reacting a compound having the formula:
- ##STR4## wherein X, n, R and z are as defined above, with an arylhalide in the presence of a zero valence palladium catalyst.
Dependencies are inferred from the claim text.