US4024165A
Expired / Lapsed
US
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Process for the epoxidation of olefins
Assignee: Shell USA Inc
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Filing: 1976-06-29
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Granted: 1977-05-17
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Expires: 1996-06-29
Abstract
Abstract A process for the epoxidation of olefins in which olefin and hydrogen peroxide are brought into contact in a fluorinated alcoholic solvent in which are dissolved a transition metal compound and a nitrogen-containing organic compound are described.
Inventors
- 👤 Thomas M. Shryne
- 👤 Leo Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:33
CPC Classifications
C; C07; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
94 words
In the process for the production of epoxides by contacting an olefin with hydrogen peroxide in an organic solvent in the presence of a transition metal compound and a nitrogen-containing compound the improvement which comprises using as the organic solvent a fluorinated alcohol having the formula: ##STR7## where R 1 is a saturated alkyl or fluoroalkyl group having 6 or less carbons, a phenyl group, or a flourine atom and R 2 is a saturated alkyl or fluoroalkyl of 2 and 3 carbon atoms which forms part of a 5 or 6 membered ring.
Claim 2
Dependent Claim
94 words
In the process for the production of epoxides by contacting an olefin with hydrogen peroxide in an organic solvent in the presence of a transition metal compound and a nitrogen-containing compound the improvement which comprises using as the organic solvent a fluorinated alcohol having the formula: ##STR7## where R 1 is a saturated alkyl or fluoroalkyl group having 6 or less carbons, a phenyl group, or a flourine atom and R 2 is a saturated alkyl or fluoroalkyl of 2 and 3 carbon atoms which forms part of a 5 or 6 membered ring.
Claim 3
Dependent Claim
22 words
The process of claim 1 where the olefin is selected from the group consisting of ethylene, propylene, allyl alcohol and allyl chloride.
Claim 4
Dependent Claim
10 words
The process of claim 2 where the olefin is propylene.
Claim 5
Dependent Claim
11 words
The process of claim 2 where the olefin is allyl chloride.
Claim 6
Dependent Claim
13 words
The process of claim 2 where the transition metal compound is tungstic acid.
Claim 7
Dependent Claim
11 words
The process of claim 5 where the fluorinated alcohol is hexafluoroisopropanol.
Claim 8
Dependent Claim
20 words
The process of claim 1 where the fluorinated alcohol is selected from the group consisting of hexafluoroisopropanol and perfluoromethyl perfluoroethylcarbinol.
Claim 9
Dependent Claim
13 words
The process of claim 7 where the nitrogen-containing compound is a tertiary amine.
Claim 10
Dependent Claim
14 words
The process of claim 7 where the nitrogen-containing compound is a tertiary amine oxide.
Claim 11
Dependent Claim
12 words
The process of claim 9 where the amine oxide is triethylamine oxide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |