Patent US4512927A successfully refreshed from Google Patents.
US4512927A
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Naphthyl esters from tetralin
Assignee: Ashland LLC
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Filing: 1983-06-15
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Granted: 1985-04-23
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Expires: 2003-06-15
Abstract
Abstract A process for the preparation of naphthyl or indene carboxylates by reaction of tetralin or indane with oxygen and a carboxylic acid in the presence of a catalyst comprising palladium is described.
Inventors
- 👤 Anil B. Goel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:33
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/20; C07C15/24; C07C67/00; C07C67/04; C07C67/05; C07C67/055; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
76 words
The process for preparing a member selected from the group consisting of naphthyl carboxylate and an indene carboxylate consisting essentially of reacting tetralin or indane respectively with oxygen and a carboxylic acid having from 2 to 19 carbon atoms at a temperature of from 120° C. to 200° C. in the presence of a catalyst which contains the elements Pd/Sb/M wherein M is at least one member selected from the group consisting of K and Cr.
Claim 2
Dependent Claim
76 words
The process for preparing a member selected from the group consisting of naphthyl carboxylate and an indene carboxylate consisting essentially of reacting tetralin or indane respectively with oxygen and a carboxylic acid having from 2 to 19 carbon atoms at a temperature of from 120° C. to 200° C. in the presence of a catalyst which contains the elements Pd/Sb/M wherein M is at least one member selected from the group consisting of K and Cr.
Claim 3
Dependent Claim
18 words
The process of claim 1 wherein the catalyst is a carboxylate of each element Pd, Sb and M.
Claim 4
Dependent Claim
25 words
The process of claim 2 wherein the catalyst is composed of palladium acetate, antimony acetate and potassium acetate and the carboxylic acid is octanoic acid.
Claim 5
Dependent Claim
25 words
The process of claim 2 wherein the catalyst is composed of palladium acetate, antimony acetate and chromium acetate and the carboxylic acid is octanoic acid.
Claim 6
Dependent Claim
25 words
The process of claim 4 wherein the catalyst is composed of palladium acetate, antimony acetate and chromium acetate and the carboxylic acid is hexanoic acid.
Claim 7
Dependent Claim
26 words
The process of claim 2 wherein the catalyst is composed of palladium acetate, antimony acetate, and potassium acetate and the carboxylic acid is dodecane dioic acid.
Claim 8
Dependent Claim
9 words
The process of claim 3 wherein tetralin is used.
Claim 9
Dependent Claim
9 words
The process of claim 3 wherein indane is used.
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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) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |