US2925437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for converting unsaturated organic compounds to organoboron compounds
Assignee: Individual
•
Filing: 1956-10-30
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Granted: 1960-02-16
•
Expires: 1976-10-30
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD OF PREPARING AN ORGANOBORON COMPOUND WHICH COMPRISES REACTING AN UNSATURATED ORGANIC COMPOUND WITH AN ALKALI METAL BOROHYDRIDE AND A FRIDELCRAFTS CATALYST SELECTED FROM THE GROUP CONSISTING OF CHLORIDES, BROMIDES AND IODIDES OF A POLYVALENT METAL HAVING A VALENCE FROM THREE TO FIVE IN AN INERT ETHEREAL LIQUID, SAID UNSATURATED ORGANIC COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF OLEFINS, CYCLOOLEFINS, DIENES, ALKYNES ARYLALKENES, ALKYL ALKENOATES, HALOALKENES, NITROARYLALKENES, ALKENYL ETHERS AND ALKENYLAMINES.
Claim 2
Independent Claim
73 words
THE METHOD OF PREPARING AN ORGANOBORON COMPOUND WHICH COMPRISES REACTING AN UNSATURATED ORGANIC COMPOUND WITH AN ALKALI METAL BOROHYDRIDE AND A FRIDELCRAFTS CATALYST SELECTED FROM THE GROUP CONSISTING OF CHLORIDES, BROMIDES AND IODIDES OF A POLYVALENT METAL HAVING A VALENCE FROM THREE TO FIVE IN AN INERT ETHEREAL LIQUID, SAID UNSATURATED ORGANIC COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF OLEFINS, CYCLOOLEFINS, DIENES, ALKYNES ARYLALKENES, ALKYL ALKENOATES, HALOALKENES, NITROARYLALKENES, ALKENYL ETHERS AND ALKENYLAMINES.
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) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |