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US4153795A
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Cobalt pyridyl catalysts for hydroformylation
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1977-07-22
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Granted: 1979-05-08
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Expires: 1997-07-22
Abstract
Abstract Complex catalysts for hydroformylation which comprises (A) a cobalt carbonyl component and (B) at least one component selected from the group consisting of 3-pyridylpropionic acid esters of aliphatic polyhydric alcohols, 3-pyridylpropionic acid esters of aliphatic pyridylalcohols and dipyridyl ethers. The catalysts promote hydroformylation of olefins at low temperature and pressure and are especially easily separated and recovered.
Inventors
- 👤 Akio Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:48
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1805; B01J31/181; B01J31/1815; B01J31/20; C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/54; C07D213/55; C07D213/60; C07D213/62; C07D213/63; C07F; C07F15/00; C07F15/06; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2531/00; B01J2531/02; B01J2531/0202; B01J2531/0211; B01J2531/80; B01J2531/84; B01J2531/845
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
111 words
A complex catalyst for hydroformylation which is a complex formed by mixing (A) with (B) an ester compound or ether compound having at least two pyridyl groups in the molecule thereof and selected from the group consisting of compounds of the formulas: ##STR6## wherein R 1 stands for a residue of an aliphatic polyhydric alcohol with 2-20 carbon atoms, n for a valence of said residue of said aliphatic polyhydric alcohol and for an integer of at least 2 and m for an integer of at least one and wherein the hydrogen atom or atoms in the pyridyl ring or rings may be displaced by a lower alkyl group or groups.
Claim 2
Dependent Claim
111 words
A complex catalyst for hydroformylation which is a complex formed by mixing (A) with (B) an ester compound or ether compound having at least two pyridyl groups in the molecule thereof and selected from the group consisting of compounds of the formulas: ##STR6## wherein R 1 stands for a residue of an aliphatic polyhydric alcohol with 2-20 carbon atoms, n for a valence of said residue of said aliphatic polyhydric alcohol and for an integer of at least 2 and m for an integer of at least one and wherein the hydrogen atom or atoms in the pyridyl ring or rings may be displaced by a lower alkyl group or groups.
Claim 3
Dependent Claim
24 words
A complex catalyst according to claim 1 wherein said residue R 1 in said component (B) is an alkylene group with 2-20 carbon atoms.
Claim 4
Dependent Claim
17 words
A complex catalyst according to claim 1 wherein said valence n in said component (B) is 2-6.
Claim 5
Dependent Claim
31 words
A complex catalyst according to claim 1 wherein the hydrogen atom or atoms in said pyridyl ring or rings are displaced by an alkyl group or groups with 1-6 carbon atoms.
Claim 6
Dependent Claim
38 words
A complex catalyst according to claim 1 wherein (B) is at least one compound selected from the group consisting of esters of ethylene glycol, glycerol, 1,4-butandiol and pentaerythritol with 3-(2-pyridyl)-propionic acid; 2-(2-pyridyl)-ethyl 3-(2-pyridyl)-propionate, 3-(2-pyridyl)-propyl 3-(2-pyridyl)-propionate; and di(2-pyridyl) ether.
Claim 7
Dependent Claim
25 words
A complex catalyst according to claim 1 wherein one molar proportion of said component (A) is coordinated with 2-20 molar proportion of said component (B).
Claim 8
Dependent Claim
47 words
A complex of the formula: H.sub.2 Co.sub.3 (CO).sub.9 (B).sub.a wherein B stands for a compound selected from the group consisting of esters of ethylene glycol, glycerol, 1,4-butandiol and pentaerythritol with 3-(2-pyridyl)-propionic acid; 2-(2-pyridyl)-ethyl 3-(2-pyridyl)-propionate, 3-(2pyridyl)-ethyl 3-(2-pyridyl)-propionates; and di-(2-pyridyl) ether, and a for an positive number from 1.25-5.0.
Claim 9
Dependent Claim
47 words
A complex of the formula: H.sub.2 Co.sub.3 (CO).sub.9 (B).sub.a wherein B stands for a compound selected from the group consisting of esters of ethylene glycol, glycerol, 1,4-butandiol and pentaerythritol with 3-(2-pyridyl)-propionic acid; 2-(2-pyridyl)-ethyl 3-(2-pyridyl)-propionate, 3-(2pyridyl)-ethyl 3-(2-pyridyl)-propionates; and di-(2-pyridyl) ether, and a for an positive number from 1.25-5.0.
References Cited (Backward Citations)
US3996164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |