US3697580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of buten-2-ol-4 compounds
Assignee: BASF SE
•
Filing: 1970-01-09
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Granted: 1972-10-10
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Expires: 1990-01-09
Abstract
Abstract Production of buten-2-ol-4 compounds by isomerization of buten1-ol-4 compounds in the presence of palladium or a compound thereof and hydrogen. The products are solvents or starting materials for the production of solvents, dyes, surface coatings and pest control agents.
Inventors
- 👤 Hermann Overwien
- 👤 Herbert Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:25
CPC Classifications
C; C07; C07C; C07C35/00; C07C35/02; C07C35/06; C07C29/00; C07C29/56; C07C45/00; C07C45/61; C07C45/67; C07C67/00; C07C67/28; C07C67/293; C07C2601/00; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
53 words
A process as in claim 1 wherein the isomerization is carried out in the presence of palladium in an amount of 0.01 to 5 percent by weight of palladium as a finely divided metal or calculated as palladium in the form of a finely divided palladium salt, with reference to starting material (II).
Claim 2
Dependent Claim
50 words
A process as in claim 1 wherein the isomerization is carried out in the presence of palladium in an amount of 0.1 to 2 percent of palladium as finely divided metal or calculated as palladium in the form of a finely divided palladium salt with reference to starting material (II).
Claim 3
Dependent Claim
32 words
A process as in claim 1 wherein the isomerization is carried out in the presence of hydrogen in an amount of 1 to 25 mole percent with reference to starting material (II).
Claim 4
Dependent Claim
32 words
A process as in claim 1 wherein the isomerization is carried out in the presence of hydrogen in an amount of 5 to 50 mole percent with reference to starting material (II).
Claim 5
Dependent Claim
20 words
A process as in claim 1 wherein the isomerization is carried out at a temperature of from 30* to 150*C.
Claim 6
Dependent Claim
26 words
A process as in claim 1 wherein the isomerization is carried out in the presence of an organic solvent which is inert under the reaction conditions.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |