US4060468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin metathesis process and catalyst therefor
Assignee: Goodyear Tire and Rubber Co
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Filing: 1976-10-04
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Granted: 1977-11-29
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Expires: 1996-10-04
Abstract
Abstract There is disclosed a method for preparing a catalyst useful for olefin metathesis comprising a mixture of a salt of a metal selected from tungsten, molybdenum, rhenium and tantalum, an oxygenated organic compound selected from the group represented by the formula: ##STR1## said mixture being exposed to ultraviolet radiation to give approximately 0.4 kilowatt hours per mole of the metal salt. A process of olefin metathesis utilizing this catalyst is also disclosed.
Inventors
- 👤 Kenneth F. Castner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:54
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/34; B01J37/341; B01J37/344; B01J37/345; C; C07; C07C; C07C6/00; C07C6/02; C07C6/04; C07C6/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
117 words
The method of preparing a catalyst useful for olefin metathesis which comprises mixing (A) a salt selected from the group consisting of WCl 6 , WCl 5 , WCl 4 , WBr 5 , WOCl 4 , WO 2 Cl 2 , and WOBr 4 , and (B) an oxygenated organic compound selected from the group represented by the formula: ##STR12## X is selected from Cl, Br, I, methyl, isopropyl or t-butyl group; R is selected from H, Cl, Br, I, alkyl, aryl, arylalkyl, alkaryl and cycloalkyl; and subsequently exposing said mixture of (A) and (B) to ultraviolet irradiation for at least long enough to give approximately 0.4 KWH per mole of the metal salt of tungsten.
Claim 2
Independent Claim
117 words
The method of preparing a catalyst useful for olefin metathesis which comprises mixing (A) a salt selected from the group consisting of WCl 6 , WCl 5 , WCl 4 , WBr 5 , WOCl 4 , WO 2 Cl 2 , and WOBr 4 , and (B) an oxygenated organic compound selected from the group represented by the formula: ##STR12## X is selected from Cl, Br, I, methyl, isopropyl or t-butyl group; R is selected from H, Cl, Br, I, alkyl, aryl, arylalkyl, alkaryl and cycloalkyl; and subsequently exposing said mixture of (A) and (B) to ultraviolet irradiation for at least long enough to give approximately 0.4 KWH per mole of the metal salt of tungsten.
Claim 3
Dependent Claim
35 words
The method according to claim 1 in which the salt of (A) is tungsten hexachloride and the oxygenated organic compound is selected from the group of 2,6-dichlorophenol, 2,6-dibromophenol, 2,6-isopropylphenol, 2,6-diiodophenol, 2,3,6-trichlorophenol, 2,4,5,6-tetrachlorophenol, 2,6-diisopropylphenol and 2,6-di-t-butyl-p-cresol.
Claim 4
Dependent Claim
16 words
The method according to claim 1 in which (C) molecular oxygen is included in the catalyst.
Claim 5
Dependent Claim
16 words
The method according to claim 2 in which (C) molecular oxygen is included in the catalyst.
Claim 6
Dependent Claim
134 words
An olefin metathesis process which comprises subjecting at least one member selected from the group consisting of olefins and cycloolefins to a catalyst comprising mixing (A) a salt selected from the group consisting of WCl 6 , WCl 5 , WCl 4 , WBr 5 , WOCl 4 , WO 2 Cl 2 , and WOBr 4 , and (B) an oxygenated organic compound selected from the group represented by the formula: ##STR13## X is selected from Cl, Br, I, methyl, isopropyl or t-butyl group; R is selected from H, Cl, Br, I, alkyl, aryl, arylalkyl, alkaryl, and cycloalkyl; and subsequently exposing said mixture of (A) and (B) to ultraviolet irradiation for at least that which is equivalent to approximately 0.4 kilowatt hours per mole of the initial amount of the salt of tungsten.
Claim 7
Dependent Claim
134 words
An olefin metathesis process which comprises subjecting at least one member selected from the group consisting of olefins and cycloolefins to a catalyst comprising mixing (A) a salt selected from the group consisting of WCl 6 , WCl 5 , WCl 4 , WBr 5 , WOCl 4 , WO 2 Cl 2 , and WOBr 4 , and (B) an oxygenated organic compound selected from the group represented by the formula: ##STR13## X is selected from Cl, Br, I, methyl, isopropyl or t-butyl group; R is selected from H, Cl, Br, I, alkyl, aryl, arylalkyl, alkaryl, and cycloalkyl; and subsequently exposing said mixture of (A) and (B) to ultraviolet irradiation for at least that which is equivalent to approximately 0.4 kilowatt hours per mole of the initial amount of the salt of tungsten.
Claim 8
Dependent Claim
35 words
The process according to claim 5 in which the salt of (A) is tungsten hexachloride and the oxygenated organic compound is selected from the group of 2,6-dichlorophenol, 2,6-dibromophenol, 2,6-isopropylphenol, 2,6-diiodophenol, 2,3,6-trichlorophenol, 2,4,5,6-tetrachlorophenol, 2,6-diisopropylphenol and 2,6-di-t-butyl-p-cresol.
Claim 9
Dependent Claim
16 words
The process according to claim 5 in which (C) molecular oxygen is included in the catalyst.
Claim 10
Dependent Claim
16 words
The process according to claim 6 in which (C) molecular oxygen is included in the catalyst.
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) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |