US3960930A
Expired / Lapsed
US
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Production of esters
Assignee: Imperial Chemical Industries Ltd
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Filing: 1967-03-14
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Granted: 1976-06-01
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Expires: 1987-03-14
Abstract
Abstract The present invention relates to a process for the production of unsaturated esters which comprises the step of introducing an olefinic hydrocarbon to a solution containing a palladous salt, a carboxylic acid, carboxylate ions additional to any provided by self-ionisation of the carboxylic acid, a redox system and at most an amount of water allowing said ester formation.
Inventors
- 👤 Duncan Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:41
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/04; C07C67/05; C07C67/055
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
50 words
A process for producing an ester of a carboxylic acid which comprises reacting in the liquid phase, an olefinically unsaturated hydrocarbon with a carboxylic acid in the presence of an alkali metal salt of a carboxylic acid, a palladous salt, a redox system and molecular oxygen under substantially anhydrous conditions.
Claim 2
Dependent Claim
50 words
A process for producing an ester of a carboxylic acid which comprises reacting in the liquid phase, an olefinically unsaturated hydrocarbon with a carboxylic acid in the presence of an alkali metal salt of a carboxylic acid, a palladous salt, a redox system and molecular oxygen under substantially anhydrous conditions.
Claim 3
Dependent Claim
53 words
A process for producing the unsaturated ester of a carboxylic acid which comprises reacting an olefinically unsaturated hydrocarbon with a carboxylic acid in the liquid phase in the presence of an alkali metal salt of a carboxylic acid, a palladous salt, a redox system and a minor amount of water allowing ester formation.
Claim 4
Dependent Claim
53 words
A process for producing the unsaturated ester of a carboxylic acid which comprises reacting an olefinically unsaturated hydrocarbon with a carboxylic acid in the liquid phase in the presence of an alkali metal salt of a carboxylic acid, a palladous salt, a redox system and a minor amount of water allowing ester formation.
Claim 5
Dependent Claim
55 words
A process for producing the unsaturated ester of a carboxylic acid which comprises reacting an olefinically unsaturated hydrocarbon with a carboxylic acid in the liquid phase in the presence of an alkali metal salt of a carboxylic acid, a palladous salt, a metal salt redox system and a minor amount of water allowing ester formation.
Claim 6
Dependent Claim
55 words
A process for producing the unsaturated ester of a carboxylic acid which comprises reacting an olefinically unsaturated hydrocarbon with a carboxylic acid in the liquid phase in the presence of an alkali metal salt of a carboxylic acid, a palladous salt, a metal salt redox system and a minor amount of water allowing ester formation.
Claim 7
Dependent Claim
65 words
A process for producing the unsaturated ester of a carboxylic acid which comprises reacting in the liquid phase, an olefinically unsaturated hydrocarbon with a carboxylic acid in the presence of an alkali metal salt of a carboxylic acid, a palladous salt, a metal salt redox system selected from the group consisting of copper and iron salts and a minor amount of water allowing ester formation.
Claim 8
Dependent Claim
65 words
A process for producing the unsaturated ester of a carboxylic acid which comprises reacting in the liquid phase, an olefinically unsaturated hydrocarbon with a carboxylic acid in the presence of an alkali metal salt of a carboxylic acid, a palladous salt, a metal salt redox system selected from the group consisting of copper and iron salts and a minor amount of water allowing ester formation.
Claim 9
Dependent Claim
15 words
A process as claimed in claim 2 in which the olefinic hydrocarbon is an α-olefine.
Claim 10
Dependent Claim
16 words
A process as claimed in claim 5 in which molecular oxygen is passed into the solution.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |