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US3671577A
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Process for producing 1, 4-diacyloxy-2-butene
Assignee: Tosoh Corp
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Filing: 1970-03-13
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Granted: 1972-06-20
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Expires: 1990-03-13
Abstract
Abstract 1,4-DIACYLOXY-2-BUTENE IS PRODUCED BY PASSING A GASEOUS MIXTURE OF BUTADIENE, AN ALIPHATIC MONOCARBOXYLIC ACID AND AN OXYGENCONTAINING GAS OVER A CATALYST COMPRISING AT LEAST ONE OF PALLADIUM, IRIDIUM, PLATINUM, RHODIUM AND RUTHENIUM AND CARBOXYLATE AND INORGANIC ACID SALT THEREOF.
Inventors
- 👤 Isao Ono
- 👤 Kentaro Fukabori
- 👤 Seiichi Shimomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:54
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/04; C07C67/05; C07C67/055
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
31 words
A process of producing a 1,4-diacyloxy-2-butene according to claim 1 wherein said catalyst Is at least one metal (A) selected from the group consisting of palladium, platinum, rhodium, ruthenium, and iridium.
Claim 2
Dependent Claim
27 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 1, wherein said catalyst is a carboxylate or an inorganic salt of palladium, platinum, rhodium, ruthenium and iridium.
Claim 3
Dependent Claim
16 words
A process for producing a 1,4-diacyloxy-2-butene according to claims 1, wherein said oxygen-containing gas is air.
Claim 4
Dependent Claim
24 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 1, wherein said reaction is carried out at a temperature of 150* to 350* C.
Claim 5
Dependent Claim
36 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 1, wherein said butadiene in the feedstock contains a small amount of a lower aliphatic saturated hydrocarbon selected from the group consisting of ethane, propane and butane.
Claim 6
Dependent Claim
33 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 1, wherein the total proportion of said butadiene, aliphatic monocarboxylic acid and oxygen-containing gas in said feedstock is 1 to 98 percent by volume.
Claim 7
Dependent Claim
39 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 1, wherein the proportion of said butadiene, aliphatic monocarboxylic acid and oxygen-containing gas is 5 to 85 percent, 5 to 50 percent and 5 to 60 percent, by volume, respectively.
Claim 8
Dependent Claim
10 words
A process for producing a 1,4-diacyloxy-2-butene having the general formula
Claim 9
Dependent Claim
34 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 9, wherein said metal(B) is at least one metal selected from the group consisting of copper, zinc, an alkali metal and an alkaline earth metal.
Claim 10
Dependent Claim
39 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 9, wherein the metal (B) of said carboxylate promoter or inorganic salt promoter is selected from the group consisting of copper, zinc, an alkali metal and an alkaline earth metal.
Claim 11
Dependent Claim
52 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 9, wherein said carboxylate promoter is a metal carboxylate of a saturated or unsaturated aliphatic monocarboxylic acid having less than 8 carbon atoms and a metal (B) selected from the group consisting of copper, zinc, an alkali metal and an alkaline earth metal.
Claim 12
Dependent Claim
47 words
A process for producing a 1,4-diacyloxy-2-butene according to claim 9, wherein said inorganic salt promoter is an inorganic salt of hydrochloric acid, sulfuric acid or nitric acid and a metal (B) selected from the group consisting of copper, zinc, an alkali metal and an alkaline earth metal.
References Cited (Backward Citations)
DE1191366B
Cited
GB1138366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |