US4556719A
Expired / Lapsed
US
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Production of transition metal complexes
Assignee: Studiengesellschaft Kohle gGmbH
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Filing: 1984-04-25
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Granted: 1985-12-03
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Expires: 2004-04-25
Abstract
Abstract The invention relates to a process for the production of complex compounds of the transition metals which is characterized in that transition metals are reacted with magnesium, to which a catalytic quantity of anthracene and/or magnesium anthracene has been added as activator, in the presence of complexing ligands.
Inventors
- 👤 Helmut Bonnemann
- 👤 Borislav Bogdanovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:54
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07F; C07F11/00; C07F15/00; C07F15/0006; C07F15/006; C07F15/0066; C07F15/0086; C07F15/04; C07F15/045; C07F17/00; C07F7/00; C07F7/28
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
43 words
A process for the production of complex compounds of the transition metals, characterized in that transition metal salts are reacted with magnesium, to which a catalytic quantity of anthracene and/or magnesium anthracene has been added as activator, in the presence of complexing ligands.
Claim 2
Dependent Claim
43 words
A process for the production of complex compounds of the transition metals, characterized in that transition metal salts are reacted with magnesium, to which a catalytic quantity of anthracene and/or magnesium anthracene has been added as activator, in the presence of complexing ligands.
Claim 3
Dependent Claim
27 words
A process as claimed in claim 1, characterized in that the magnesium is treated in an ultrasonic bath with a catalytic quantity of anthracene and/or magnesium anthracene.
Claim 4
Dependent Claim
27 words
A process as claimed in claim 1, characterized in that the transition metals used are those of Groups IVB to VIIB of the Periodic System of Elements.
Claim 5
Dependent Claim
25 words
A process as claimed in claim 1, characterized in that electron donors which form penetration complexes with transition metals are used as the complexing ligands.
Claim 6
Dependent Claim
26 words
A process as claimed in claim 1, characterized in that olefins, cyclic olefins, conjugated olefin systems, polyolefins, alkynes and cycloalkynes, are used as the complexing ligands.
Claim 7
Dependent Claim
37 words
A process as claimed in claim 1, characterized in that the complexing ligands used are those containing free electron pairs, selected from the group consisting of phosphanes, phosphites, arsanes, triorganyl antimony compounds, pyridines, dipyridines and carbon monoxide.
Claim 8
Dependent Claim
30 words
A process as claimed in claim 1 for the production of cyclopentadienyl compounds of the transition metals, characterized in that cyclopentadiene and/or cyclopentadiene derivatives is/are used as the complexing agent.
Claim 9
Dependent Claim
34 words
A process as claimed in claim 1 for the production of cyclopentadienyl iron compounds (ferrocenes), characterized in that iron salts are reacted with the activated magnesium in the presence of cyclopentadiene and/or cyclopentadiene derivatives.
Claim 10
Dependent Claim
45 words
A process as claimed in claim 1 for the production of cyclopentadienyl cobalt complexes (cobaltocenes), characterized in that cobalt salts are reacted with the activated magnesium in the presence of cyclopentadiene and/or cyclopentadiene derivatives, the molar ratio of complexing agent to cobalt amounting to ≦3.
Claim 11
Dependent Claim
44 words
A process as claimed in claim 1 for the production of cyclopentadienyl cobalt olefin half-sandwich compounds, characterized in that cyclopentadiene or derivatives thereof and another olefin are used as complexing agent, in the presence of which cobalt salts are reacted with the activated magnesium.
Claim 12
Dependent Claim
45 words
A process as claimed in claim 1 for the production of cyclopentadienyl cobalt cyclopentadiene compounds, characterized in that cobalt salts are reacted with the activated magnesium in the presence of cyclopentadiene and/or cyclopentadiene derivatives, the molar ratio of complexing agent to cobalt amounting to ≧4.
Claim 13
Dependent Claim
33 words
A process as claimed in claim 1 for the production of cyclopentadienyl cobalt cycloocta-(1,5)-diene compounds, characterized in that cyclopentadiene or derivatives thereof and cycloocta-(1,5)-diene are jointly used as complexing agent on the cobalt.
Claim 14
Dependent Claim
38 words
A process as claimed in claim 1 for the production of η 3 -allyl complexes of nickel and cobalt, characterized in that salts of these transition metals are reacted with the activated magnesium in the presence of 1,3-dienes.
Claim 15
Dependent Claim
32 words
A process as claimed in claim 1 for the production of 5-methyl-η 3 -heptadienyl cobalt butadiene, characterized in that cobalt salts are reacted with the activated magnesium in the presence of butadiene.
Claim 16
Dependent Claim
38 words
A process as claimed in claim 1 for the production of complex olefin compounds of the transition metals, characterized in that transition metal salts are reacted with the activated magnesium in the presence of olefins as complexing agents.
Claim 17
Dependent Claim
44 words
A process as claimed in claim 1 for the production of complex cycloocta-(1,5)-diene compounds of nonvalent nickel, platinum and palladium, characterized in that salts of the transition metals in question are reacted with the activated magnesium in the presence of cycloocta-(1,5)-diene as complexing agent.
Claim 18
Dependent Claim
37 words
A process as claimed in claim 1 for the production of tris-(butadiene) molybdenum and tris-(butadiene) tungsten, characterized in that salts of the transition metals in question are reacted with the activated magnesium in the presence of butadiene.
Claim 19
Dependent Claim
74 words
A process as claimed in claim 1 for the production of phosphane or phosphite complexes of the transition metals MT of the Periodic System of Elements corresponding to the general formula MTL n , where L represents alkyl-, aryl- and mixed aryl-alkyl-substituted compounds of trivalent phosphorus or triorganophosphites, characterized in that salts of the transition metals in question are reacted with the activated magnesium in the presence of n moles of phosphane or phosphite.
Claim 20
Dependent Claim
30 words
A process as claimed in claim 1 for the production of tetrakis-triphenylphosphane palladium, characterized in that palladium salts are reacted with the activated magnesium in the presence of triphenyl phosphane.
Claim 21
Dependent Claim
32 words
A process as claimed in claim 1 for the production of ethylene-bis-(tri-o-tolylphosphite) nickel (O) characterized in that nickel salts are reacted with the activated magnesium in the presence of ethylene and tri-o-tolylphosphite.
Claim 22
Dependent Claim
30 words
A process as claimed in claim 1 for the production of tris-(tri-o-tolylphosphite) nickel (O), characterized in that nickel salts are reacted with the activated magnesium in the presence of tri-o-tolylphosphite.
Claim 23
Dependent Claim
49 words
A process as claimed in claim 1 for the production of cyclopentadienyl transition metal olefin complexes, characterized in that cyclopentadienyl transition metal complexes, which contain one or more salt-like residues additionally bound to the transition metal are reacted with the activated magnesium in the presence of the particular olefins.
Claim 24
Dependent Claim
30 words
A process as claimed in claim 1 for the production of (μ-dichloro) (bis-cyclopentadienyl-titanium)fulvene, characterized in that titanium tetrachloride.2 THF is reacted with the activated magnesium in the presence of cyclopentadiene.
Claim 25
Dependent Claim
32 words
A process as claimed in claim 1 for the production of bis-(cyclopentadienyl)titanium dichloride compounds, characterized in that titanium tetrachloride.2 THF is reacted with the activated magnesium in the presence of a cyclopentadiene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |