US3976596A
Expired / Lapsed
US
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Hydridometallic carborane catalytic compounds
Assignee: United States Department of the Navy
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Filing: 1975-03-26
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Granted: 1976-08-24
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Expires: 1995-03-26
Abstract
Abstract A family of stable hydrido-rhodium and iridium carboranes are described which are effective catalysts for the homogeneous hydrogenation, isomerization and hydroformylation of olefins and the hydrosilylation of ketones.
Inventors
- 👤 Marion F. Hawthorne
- 👤 Timm E. Paxson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:48
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/24; B01J31/2404; C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; C07C5/00; C07C5/02; C07C5/03; C07C5/22; C07C5/2206; C07C5/2266; C07C5/2293; C07F; C07F15/00; C07F15/0006; C07F15/0013; C07F15/0033; C07F15/004; C07F15/0073; C07F15/008; C07F7/00; C07F7/02; C07F7/08; C07F7/0801; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2231/50; B01J2231/52; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645; B01J2531/00; B01J2531/02; B01J2531/0225; B01J2531/0227; B01J2531/80; B01J2531/82; B01J2531/822; B01J2531/827; C07C2531/00; C07C2531/16; C07C2531/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
65 words
A hydridometallic compound for use as a catalyst, said compound being selected from a group consisting of isomers of R(PPh 3 ) 2 HMC 2 B 9 H 10 wherein M is a metal selected from a group consisting of rhodium and iridium and wherein R is selected from a group consisting of CH 3 --, Ph, CH 3 and CH 2 OCH 2 --.
Claim 2
Dependent Claim
65 words
A hydridometallic compound for use as a catalyst, said compound being selected from a group consisting of isomers of R(PPh 3 ) 2 HMC 2 B 9 H 10 wherein M is a metal selected from a group consisting of rhodium and iridium and wherein R is selected from a group consisting of CH 3 --, Ph, CH 3 and CH 2 OCH 2 --.
Claim 3
Dependent Claim
44 words
An hydridometallic carborane compound for use as a catalyst, said compound being selected from a group consisting of isomers of (PPh 3 ) 2 HMC 2 B 9 H 11 wherein M is a metal selected from a group consisting of rhodium and iridium.
Claim 4
Dependent Claim
44 words
An hydridometallic carborane compound for use as a catalyst, said compound being selected from a group consisting of isomers of (PPh 3 ) 2 HMC 2 B 9 H 11 wherein M is a metal selected from a group consisting of rhodium and iridium.
Claim 5
Dependent Claim
32 words
The compound of claim 2 wherein said isomers consist of 2,2-(PPh 3 ) 2 -2-H-2,1,7-MC 2 B 9 H 11 and 3,3(PPh 3 ) 2 -3-H-3,1,2-MC 2 B 9 H 11 .
Claim 6
Dependent Claim
60 words
An homogeneous catalytic solution for the hydrogenation, isomerization and hydroformylation of olefins and the hydrosilylation of ketones comprising: an hydridometallic carborane compound selected from a group consisting of isomers of (PPh 3 ) 2 HMC 2 B 9 H 11 wherein M is a metal selected from a group consisting of rhodium and iridium, and a solvent for said compound.
Claim 7
Dependent Claim
60 words
An homogeneous catalytic solution for the hydrogenation, isomerization and hydroformylation of olefins and the hydrosilylation of ketones comprising: an hydridometallic carborane compound selected from a group consisting of isomers of (PPh 3 ) 2 HMC 2 B 9 H 11 wherein M is a metal selected from a group consisting of rhodium and iridium, and a solvent for said compound.
Claim 8
Dependent Claim
32 words
The solution of claim 4 wherein said isomers consist of 2,2-(PPh 3 ) 2 -2-H-2,1,7-MC 2 B 9 H 11 and 3,3(PPh 3 ) 2 -3-H-3,1,2-MC 2 B 9 H 11 .
Claim 9
Dependent Claim
10 words
The solution of claim 5 wherein said solvent is tetrahydrofurane.
Claim 10
Dependent Claim
10 words
The solution of claim 5 wherein said solvent is benzene.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |