US3078309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of organoboron compounds
Assignee: Individual
•
Filing: 1959-11-06
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Granted: 1963-02-19
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Expires: 1979-11-06
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:04
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/027; C07C; C07C29/00; C07C29/48; C07C29/50; C07C29/54; C07C35/00; C07C35/02; C07C35/06; C07C2601/00; C07C2601/06; C07C2601/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS FOR THE PREPARATION OF BIS-HYDROBORATED COMPOUNDS CHARACTERIZED BY REACTING DIBORANE WITH A DIENE IN RELATIVE AMOUNTS SUCH THAT THERE IS FROM ABOUT 0.25 MOLE TO ABOUT 0.75 MOLE OF DIBORANE PER MOLE OF DIENE; SAID REACTION BEING CONDUCTED IN THE PRESENCE OF A SMAL AMOUNT OF A WEAK LEWIS BASE CATALYST CAPABLE OF FORMING UNSTABLE COMPLEXES OF DIBORANE; SAID REACTION ALSO BEING CONDUCTED AT A TEMPERATURE BETWEEN ABOUT -40 TO 100* C.; SAID DIENE BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON DIENES, NITRO-SUBSTITUTED DIENES, HALO-SUBSTITUTED DIENES, DIENE ETHERS, DIENE ACID CHLORIDES, DIENE CARBOXYLIC ESTERS, AND DIENE BORATE ESTERS.
Claim 2
Dependent Claim
101 words
A PROCESS FOR THE PREPARATION OF BIS-HYDROBORATED COMPOUNDS CHARACTERIZED BY REACTING DIBORANE WITH A DIENE IN RELATIVE AMOUNTS SUCH THAT THERE IS FROM ABOUT 0.25 MOLE TO ABOUT 0.75 MOLE OF DIBORANE PER MOLE OF DIENE; SAID REACTION BEING CONDUCTED IN THE PRESENCE OF A SMAL AMOUNT OF A WEAK LEWIS BASE CATALYST CAPABLE OF FORMING UNSTABLE COMPLEXES OF DIBORANE; SAID REACTION ALSO BEING CONDUCTED AT A TEMPERATURE BETWEEN ABOUT -40 TO 100* C.; SAID DIENE BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON DIENES, NITRO-SUBSTITUTED DIENES, HALO-SUBSTITUTED DIENES, DIENE ETHERS, DIENE ACID CHLORIDES, DIENE CARBOXYLIC ESTERS, AND DIENE BORATE ESTERS.
References Cited (Backward Citations)
US2964567A
Cited
US2977389A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |