Claims
- 1. A process for preparing a pentafluorophenyl compound having the general formula C.sub.6 F.sub.5 MgX, wherein X is halogen, said process comprising reacting pentafluorochlorobenzene with a C.sub.3 to C.sub.20 hydrocarbylmagnesium halide under conditions to form C.sub.6 F.sub.5 MgX.
- 2. The process according to claim 1 wherein the reaction is carried out in an ether solvent.
- 3. The process according to claim 1 wherein the mole ratio of pentafluorochlorobenzene to hydrocarbylmagnesium halide ranges from about 1:1 to 10:1.
- 4. The process according to claim 1 wherein the hydrocarbylmagnesium halide is a propylmagnesium halide.
- 5. The process according to claim 1 wherein pentafluorochlorobenzene is reacted with isopropylmagnesium bromide in a mole ratio ranging from about 1:1 to 2:1 in an ether solvent to provide pentafluorophenylmagnesium bromide.
- 6. A process for preparing a pentafluorophenyl compound having the general formula (C.sub.6 F.sub.5).sub.n Y, where Y is a transition or main group element of Groups 4 to 14 of the Periodic Table other than carbon and n equals the valence of Y, said process comprising the steps of, (a) reacting pentafluorochlorobenzene with a hydrocarbyl magnesium halide under conditions so as to form a pentafluorophenylmagnesium halide, (b) reacting said pentafluorophenylmagnesium halide with a halide of Y, in a mole ratio of from about (0.8 to 1.2)n to 1, in an ether solvent under conditions so as to form a solution of an ether complex of said pentafluorophenyl compound, and (c) optionally recovering said pentafluorophenyl compound from said complex by solvent exchange.
- 7. The process according to claim 6 wherein pentafluorophenylmagnesium halide is reacted with BF.sub.3 and the pentafluorophenylcompound is (C.sub.6 F.sub.5).sub.3 B.
- 8. A process for preparing a pentafluorophenyl compound having the general formula (C.sub.6 F.sub.5).sub.n+1 YMgX, where Y is a transition or main group element of Group 4 to 14 of the Periodic Table other than carbon and n is the valence of Y, said process comprising the steps of (a) reacting pentafluorochlorobenzene with a hydrocarbylmagnesium halide under conditions so as to form a pentafluorophenylmagnesium halide, and (b) reacting said pentafluorophenylmagnesium halide with a halide of Y, in a mole ratio of at least about 1.25 n to 1, under conditions so as to form (C.sub.6 F.sub.5).sub.n+1 YMgX.
- 9. The process according to claim 8 wherein pentafluorophenylmagnesium bromide is reacted with BF.sub.3 and the pentafluorophenyl compound is (C.sub.6 F.sub.5).sub.4 BMgBr.
- 10. The process according to claim 6 wherein said hydrocarbyl magnesium halide is a C.sub.3 to C.sub.20 hydrocarbyl magnesium halide.
- 11. The process according to claim 10 wherein said hydrocarbyl magnesium halide is a propylmagnesium halide.
- 12. The process according to claim 6 wherein the step (a) pentafluorochlorobenzene is reacted with isopropylmagnesium bromide in a mole ratio range from about 1:1 to 2:1 in a dialkyl ether solvent to provide pentafluorophenylmagnesium bromide.
- 13. The process according to claim 8 wherein said hydrocarbyl magnesium halide is a C.sub.3 to C.sub.20 hydrocarbyl magnesium halide.
- 14. The process according to claim 13 wherein said hydrocarbyl magnesium halide is a propylmagnesium halide.
- 15. The process according to claim 8 wherein the step (a) pentafluorochlorobenzene is reacted with isopropylmagnesium bromide in a mole ratio range from about 1:1 to 2:1 in a dialkyl ether solvent to provide pentafluorophenylmagnesium bromide.
Parent Case Info
This application is a continuation of application Ser. No. 08/392,001, filed Feb. 21, 1995, now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0520732 |
Dec 1992 |
EPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
392001 |
Feb 1995 |
|