US2894976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycloheptene carboxylates and their production
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-04-01
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Granted: 1959-07-14
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Expires: 1975-04-01
Abstract
No abstract record available.
Inventors
- 👤 Fred W Banes
- 👤 Herbert K Wiese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:48
CPC Classifications
C; C09; C09F; C09F7/00; C07; C07C; C07C33/00; C07C33/02; C07C33/025; C07C45/00; C07C45/61; C07C45/62; C07C47/00; C07C47/28; C07C67/00; C07C67/30; C07C67/303; C07C67/31; C07C67/333; C07C67/343; C07C67/347; C07C69/00; C07C69/74; C07C69/753; C07C2601/00; C07C2601/12; C07C2601/14; C07C2603/00; C07C2603/56; C07C2603/58; C07C2603/60; C07C2603/66; C07C2603/68
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
36 words
A DICYCLOHEPTENE DERIVATIVE WHICH COMPRISES AN ADDUCT OF A CYCLOPENTADIENE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTADIENE MONOCARBOXYLIC ACID METHYLCYCLOPENTADIENE MONOCARBOXYLIC ACID, AND THE METHYL ESTERS THEREOF, AND AN UNSATURATED DIENOPHILIC COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
36 words
A DICYCLOHEPTENE DERIVATIVE WHICH COMPRISES AN ADDUCT OF A CYCLOPENTADIENE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF CYCLOPENTADIENE MONOCARBOXYLIC ACID METHYLCYCLOPENTADIENE MONOCARBOXYLIC ACID, AND THE METHYL ESTERS THEREOF, AND AN UNSATURATED DIENOPHILIC COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
1 words
CARBMETHOXY-DICYCLO(2,2,1)-HEPTAN-2-OL.
Claim 4
Dependent Claim
1 words
CARBMETHOXY-DICYCLO(2,2,1)-HEPTAN-2-OL.
Claim 5
Dependent Claim
94 words
A PROCESS FOR PREPARING CARBMETHOXY-DICYCLO (2,2, 1) HEPTAN-2-OL WHICH COMPRISES MIXING ONE MOLE OF THE DIMETHYL ESTER OF DICYCLOPENTADIENE DICARBOXYLIC ACID WITH ABOUT TWO MOLES OF ACROLEIN, REFLUXING THE MIXTURE IN AN INERT LIQUID SOLVENT AT A TEMPERATURE IN THE RANGE OF 135* TO 190*C. AND A PRESSURE BETWEEN ABOUT ATMOSPHERIC AND 50 P.S.I.G., CONTACTING THE RESULTING CARBMETHOXY-DICYCLO (2,2,1) HEPT-5-ENE-2-AL WITH SUFFICIENT HYDROGEN OVER A HYDROGENATION CATALYST AT A SUFFICIENT TEMPERATURE AND PRESSURE TO SATURATE THE DOUBLE BOND AND CONVERT THE ALDEHYDE GROUP TO AN ALCOHOL GROUP, AND RECOVERING THE PRODUCT CARBMETHOXY-DICYCLO (2,2,1) HEPTAN-2-OL.
Claim 6
Dependent Claim
94 words
A PROCESS FOR PREPARING CARBMETHOXY-DICYCLO (2,2, 1) HEPTAN-2-OL WHICH COMPRISES MIXING ONE MOLE OF THE DIMETHYL ESTER OF DICYCLOPENTADIENE DICARBOXYLIC ACID WITH ABOUT TWO MOLES OF ACROLEIN, REFLUXING THE MIXTURE IN AN INERT LIQUID SOLVENT AT A TEMPERATURE IN THE RANGE OF 135* TO 190*C. AND A PRESSURE BETWEEN ABOUT ATMOSPHERIC AND 50 P.S.I.G., CONTACTING THE RESULTING CARBMETHOXY-DICYCLO (2,2,1) HEPT-5-ENE-2-AL WITH SUFFICIENT HYDROGEN OVER A HYDROGENATION CATALYST AT A SUFFICIENT TEMPERATURE AND PRESSURE TO SATURATE THE DOUBLE BOND AND CONVERT THE ALDEHYDE GROUP TO AN ALCOHOL GROUP, AND RECOVERING THE PRODUCT CARBMETHOXY-DICYCLO (2,2,1) HEPTAN-2-OL.
Claim 7
Dependent Claim
22 words
A PROCESS OF PREPARING A CARBOXYLATED DICYCLOHEPTENE DERIVATIVE WHICH COMPRISES MIXING A DICARBOXYLATED DICYCLOPENTADIENE WITH AN UNSATURATED DIENOPHILIC COMPOUND HAVING THE FORMULA
Claim 8
Dependent Claim
22 words
A PROCESS OF PREPARING A CARBOXYLATED DICYCLOHEPTENE DERIVATIVE WHICH COMPRISES MIXING A DICARBOXYLATED DICYCLOPENTADIENE WITH AN UNSATURATED DIENOPHILIC COMPOUND HAVING THE FORMULA
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) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |