US3674884A
Expired / Lapsed
US
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Process for the preparation of aromatic hydrocarbons containing monoethylenic unsaturated radicals
Assignee: Ube Corp
•
Filing: 1968-07-29
•
Granted: 1972-07-04
•
Expires: 1988-07-29
Abstract
Abstract Process for the preparation of aromatic hydrocarbon compounds containing monoethylenically unsaturated radicals, which comprises reacting a monoethylenically unsaturated compound with an aromatic hydrocarbon compound in the presence of a palladium salt.
Inventors
- 👤 Ichiro Moritani
- 👤 Yuzo Fujiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:45
CPC Classifications
C; C07; C07C; C07C255/00; C07C2/00; C07C2/76; C07C67/00; C07C67/28; C07C67/293; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/06; C07C2527/128; C07C2527/13; C07C2527/24; C07C2527/25; C07C2531/00; C07C2531/02; C07C2531/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
31 words
The process of claim 1, in which the palladium salt is present in the reaction system in a quantity of at least fourth mol per mol of the monoethylenically unsaturated compound.
Claim 2
Dependent Claim
23 words
The process of claim 1, in which the reaction is performed in an aliphatic monocarboxylic acid of one to five carbons as solvent.
Claim 3
Dependent Claim
20 words
The process of claim 1, in which the reaction is performed at temperatures ranging from room temperature to 200* C.
Claim 4
Dependent Claim
13 words
The process of claim 1, in which the palladium salt is palladium acetate.
Claim 5
Dependent Claim
34 words
The process of claim 1, in which the monoethylenically unsaturated compound is selected from the group consisting of ethylene, propylene, vinyl fluoride, acrylonitrile, butyl vinyl ether, vinyl acetate, styrene, 4-methylstyrene, and 1,1-diphenylethylene and cyclohexane.
Claim 6
Dependent Claim
25 words
The process of claim 1, in which the aromatic compound is selected from the group consisting of benzene, toluene, xylene, monochlorobenzene, mononitrobenzene, monoethylbenzene, and anisole.
Claim 7
Dependent Claim
18 words
The process according to claim 1 wherein X, Y and Z are each hydrogen and n is 1.
Claim 8
Dependent Claim
20 words
The process according to claim 1, wherein X and Z are each hydrogen, Y is phenyl and n is 1.
Claim 9
Dependent Claim
20 words
The process according to claim 1, wherein X is hydrogen, Y is phenyl, Z is methyl and n is 1.
References Cited (Backward Citations)
US3479392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |