Claims
- 1. A composition comprising Cr.sub.5 (C.sub.4 H.sub.4 N).sub.10 (C.sub.4 H.sub.8 O).sub.4.
- 2. A composition comprising [Cr(C.sub.4 H.sub.4 N).sub.4 ].
- 3. A composition comprising [Cr(C.sub.4 H.sub.4 N).sub.4 ][Na].sub.2.2(OC.sub.4 H.sub.8).
- 4. A composition comprising [Cr(C.sub.4 H.sub.4 N).sub.5 (OC.sub.4 H.sub.8)].
- 5. A composition comprising [Cr(C.sub.4 H.sub.4 N).sub.5 (OC.sub.4 H.sub.8)][Na].sub.2.4(OC.sub.4 H.sub.8).
- 6. A process to prepare a chromium-containing compound comprising forming a mixture of and refluxing:
- (a) a chromium salt;
- (b) a metal amide; and
- (c) an electron pair donor solvent
- 7. A process according to claim 6 wherein said chromium salt is selected from the group consisting of chromium acids, chromium halides, and mixtures thereof.
- 8. A process according to claim 7 wherein said chromium salt is a chromium halide selected from the group consisting of chromous chloride, chromic chloride, and mixtures thereof.
- 9. A process according to claim 6 wherein said metal amide is selected from the group consisting of alkali metal amide salt, alkaline earth metal amide salts, silyl amide salts, and mixtures thereof.
- 10. A process according to claim 9 wherein said metal amide has from about 1 to about 20 carbon atoms per molecule.
- 11. A process according to claim 6 wherein said metal amide is an unsaturated compound.
- 12. A process according to claim 11 wherein said metal amide is an aromatic compound.
- 13. A process according to claim 6 wherein said metal amide has amine ligand and wherein said amine ligand is selected from the group consisting of pyrrolide ligands, derivatives of pyrrole ligands, and mixtures thereof.
- 14. A process according to claim 6 wherein said electron pair donor solvent has from about 2 to about 20 carbon atoms per molecule.
- 15. A process according to claim 6 wherein said electron pair donor solvent is an aliphatic compound.
- 16. A process according to claim 6 wherein said metal amide is soluble in said electron pair donor solvent.
- 17. A process according to claim 6 wherein said electron pair donor solvent is an ether and is selected from the group consisting of tetrahydrofuran, derivatives of tetrahydrofuran, dimethoxyethane, derivatives of dimethoxyethane, and mixtures thereof.
- 18. A process according to claim 6 wherein said mixture is maintained in a liquid state.
- 19. A process according to claim 18 wherein said mixture is maintained in a liquid state for a time in the range of about 1 minute to about 1 week.
- 20. A process according to claim 6 wherein said liquid is filtered to remove any reaction by-products.
- 21. A process according to claim 20 wherein the thus-filtered liquid is treated to form a solid.
- 22. A process according to claim 21 wherein the thus-filtered liquid is slowly evaporated.
- 23. A process according to claim 21 wherein the thus-filtered liquid is treated with a non-polar solvent.
- 24. A process according to claim 22 wherein a solid is recovered.
- 25. A process according to claim 23 wherein a solid is recovered.
- 26. A process to prepare one or more chromium-containing compound comprising forming a mixture of and refluxing:
- (a) about one mole of chromous chloride;
- (b) about two moles of sodium pyrrole; and
- (c) tetrahydrofuran
- 27. A process to prepare one or more chromium-containing compounds comprising forming a mixture of and refluxing:
- (a) about one mole of chromous chloride;
- (b) an excess of sodium pyrrole; and
- (c) an excess of tetrahydrofuran.
- 28. A process to prepare one or more chromium-containing compounds comprising forming a reaction mixture of and refluxing:
- (a) about one mole of chromic chloride;
- (b) about three moles of sodium pyrrole; and
- (c) an excess of dimethoxyethane.
- 29. A process to prepare one or more chromium-containing compounds comprising forming a mixture of:
- (a) about one mole of chromous chloride;
- (b) an excess of dimethyl pyrrole; and
- (c) an excess of tetrahydrofuran.
- 30. A process according to claim 26 wherein one or more compounds are recovered.
- 31. A process according to claim 27 wherein one or more compounds are recovered.
- 32. A process according to claim 28 wherein one or more compounds are recovered.
- 33. A process according to claim 29 wherein one or more compounds are recovered.
- 34. A composition comprising Cr(NC.sub.4 H.sub.4).sub.3 Cl(O.sub.2 C.sub.2 H.sub.4 (CH.sub.3).sub.2).
- 35. A composition comprising Cr(NC.sub.4 H.sub.4).sub.3 Cl(O.sub.2 C.sub.2 H.sub.4 (CH.sub.3).sub.2).sub.3 Na.
- 36. A process according to claim 13 wherein said chromium-containing compound is a chromium pyrrolide.
Parent Case Info
This application is a divisional application of Ser. No. 07/454,554, filed Dec. 21, 1989 and now abandoned, which is a continuation-in-part of application Ser. No. 07/392,688, filed Aug. 10, 1989, now abandoned.
US Referenced Citations (8)
Non-Patent Literature Citations (4)
Entry |
Zeitschrift fur Naturforschung, Pyrrolylchromium Compounds, 21 b, p. 1239 (D. Tille, 1966). |
Z. Anorg. Alleg. Chem., Organometal Compounds of Nitrogen Systems, 384, pp. 136-146 (D. Tille, 1971). |
J. Chem. Soc., Chem. Commun., Selective Trimerization of Ethylene to Hex-1-ene, pp. 674-675 (J. Briggs, 1989). |
ACS Preprints, Symposia on Novel Preparation & Conversion of Light Olefins (Reagen, Aug. 1989). |
Divisions (1)
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Number |
Date |
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Parent |
454554 |
Dec 1989 |
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Continuation in Parts (1)
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Number |
Date |
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392688 |
Aug 1989 |
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