Patent US4173575A successfully refreshed from Google Patents.
US4173575A
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Polymer bound (pentahaptocyclopentadienyl) bis carbonyl rhodium hydroformylation catalyst
Assignee: ConocoPhillips Co
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Filing: 1978-02-13
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Granted: 1979-11-06
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Expires: 1998-02-13
Abstract
Abstract A catalyst having the structural formula ##STR1## wherein R is 0 or an alkyl having from 1 to 10 carbon atoms and wherein P is a polystyrene polymer backbone, where the 6-member ring is part of the polymer. The catalyst is useful for converting olefins to aldehydes in high yield under reaction temperatures of from about 90° to 140° C. and pressures of about 300 to about 5000 psig in the presence of hydrogen and carbon monoxide yielding gases, and preferably polymer swelling solvents such as benzene, THF and toluene. The catalyst is also useful in hydrogenation reactions.
Inventors
- 👤 John T. Carlock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:31
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; B; B01; B01J; B01J31/00; B01J31/16; B01J31/165; B01J31/1658; B01J31/20; B01J31/22; B01J31/2282; B01J31/2295; C07C29/00; C07C29/132; C07C29/136; C07C29/14; C07C29/141; C07C5/00; C07C5/02; C07C5/03; C07C5/10; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2231/60; B01J2231/64; B01J2231/641; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/822; C07C2531/00; C07C2531/16; C07C2531/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
31 words
A catalyst having a structure selected from the group consisting of ##STR12## wherein R is an alkyl group containing from 1 to 10 carbon atoms, and P represents a polystyrene polymer.
Claim 2
Dependent Claim
31 words
A catalyst having a structure selected from the group consisting of ##STR12## wherein R is an alkyl group containing from 1 to 10 carbon atoms, and P represents a polystyrene polymer.
Claim 3
Dependent Claim
20 words
A catalyst as described in claim 1 wherein R is an alkyl group containing from 1 to 10 carbon atoms.
Claim 4
Dependent Claim
20 words
A catalyst as described in claim 2 wherein R is an alkyl group containing from 1 to 3 carbon atoms.
Claim 5
Independent Claim
131 words
A method of preparing a catalyst of the formula ##STR13## wherein R is an alkyl group containing from 1 to 10 carbon atoms and P is a polystyrene polymer backbone, under an inert atmosphere, comprising, (a) dissolving a compound having the structure ##STR14## in a suitable solvent, wherein P and R have the meaning described above, and reacting with (b) an alkyl or aryl organolithium material containing from 1-10 carbon atoms, continuing agitation for a period of time sufficient to effect reaction; (c) filtering the polymer from solution, readding to a suitable solvent, and adding [Rh(CO) 2 X] 2 wherein X is a halogen; and (d) continuing stirring for a sufficient time to effect reaction, then removing the catalyst from solution extracting with a suitable solvent, and drying prior to use.
Claim 6
Independent Claim
131 words
A method of preparing a catalyst of the formula ##STR13## wherein R is an alkyl group containing from 1 to 10 carbon atoms and P is a polystyrene polymer backbone, under an inert atmosphere, comprising, (a) dissolving a compound having the structure ##STR14## in a suitable solvent, wherein P and R have the meaning described above, and reacting with (b) an alkyl or aryl organolithium material containing from 1-10 carbon atoms, continuing agitation for a period of time sufficient to effect reaction; (c) filtering the polymer from solution, readding to a suitable solvent, and adding [Rh(CO) 2 X] 2 wherein X is a halogen; and (d) continuing stirring for a sufficient time to effect reaction, then removing the catalyst from solution extracting with a suitable solvent, and drying prior to use.
Claim 7
Dependent Claim
36 words
A method as described in claim 4 wherein the alkyl or aryl organolithium material is selected from the group consisting of n-butyl lithium, methyl lithium, ethyl lithium, propyl lithium, phenyl lithium, s-butyl lithium, or t-butyl lithium.
Claim 8
Dependent Claim
28 words
A method as described in claim 5 wherein the solvents suitable for the method are selected from the group consisting of tetrahydrofuran, benzene, xylenes, toluene, acetophenone, and dimethylformamide.
Claim 9
Independent Claim
131 words
A method of preparing a catalyst of the formula ##STR15## wherein P is a polystyrene polymer backbone, comprising, under an inert atmosphere; (a) dissolving a polymer having the general formula; ##STR16## in a suitable solvent and adding an alkyl or aryl organolithium compound, stirring for sufficient time to effect reaction, filtering the polymer from solution and washing with a suitable solvent before refiltering to yield a polymer having the general formula; ##STR17## (b) then adding recovered polymer to a suitable solvent and adding sufficient [Rh(CO) 2 X] 2 , wherein X is a halogen to provide the desired percentage of rhodium and agitating the mixture for sufficient time to effort reaction; (c) recovering the polymer, washing with a suitable solvent, and drying to yield a polymeric catalyst having the structure; ##STR18##
Claim 10
Independent Claim
131 words
A method of preparing a catalyst of the formula ##STR15## wherein P is a polystyrene polymer backbone, comprising, under an inert atmosphere; (a) dissolving a polymer having the general formula; ##STR16## in a suitable solvent and adding an alkyl or aryl organolithium compound, stirring for sufficient time to effect reaction, filtering the polymer from solution and washing with a suitable solvent before refiltering to yield a polymer having the general formula; ##STR17## (b) then adding recovered polymer to a suitable solvent and adding sufficient [Rh(CO) 2 X] 2 , wherein X is a halogen to provide the desired percentage of rhodium and agitating the mixture for sufficient time to effort reaction; (c) recovering the polymer, washing with a suitable solvent, and drying to yield a polymeric catalyst having the structure; ##STR18##
Claim 11
Dependent Claim
36 words
A method as described in claim 7 wherein the alkyl or aryl organolithium material is selected from the group consisting of n-butyl lithium, methyl lithium, ethyl lithium, propyl lithium, phenyl lithium, s-butyl lithium, or t-butyl lithium.
Claim 12
Dependent Claim
29 words
A method as described in claim 7 wherein the solvents suitable for the method are selected from the group consisting of the tetrahydrofuran, benzene, xylenes, toluene, acetophenone, and dimethylformamide.
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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) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |