US2925438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of converting unsaturated organic compounds to organoboron compounds
Assignee: Individual
•
Filing: 1957-02-01
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Granted: 1960-02-16
•
Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:31
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A METHOD OF PREPARING AN ORGANOBORON COMPOUND BY REACTING AN UNSATURATED ORGANIC COMPOUND WITH A REAGENT CONSISTING OF AN ALKALI METAL BOROHYDRIDE AND A BORON HALIDE, THE STEP WHICH COMPRISES SLOWLY BRINGING ONE COMPONENT OF SAID REAGENT IN REACTIVE CONTACT IN AN INERT LIQUID CARRIER WITH THE OTHER COMPONENT OF THE REAGENT IN THE PRESENCE OF AN AMOUNT OF THE UNSATURATED ORGANIC COMPOJND CORRESPONDING STOICHIOMETRICALLY AT LEAST TO THE AMOUNT OF SAID ONE COMPONENT UNTIL SUBSTANTIALLY STOICHIOMETRIC AMOUNTS OF SAID ORGANIC COMPOUND AND SAIOD ALKALI METAL BOROHYDRIDE AND SAID BORON HALIDE HAVE REACTED TO FROM SAID ORGANOBORON COMPOUND, SAID UNSATURATED ORGANIC COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF OLEFINS, CYCLOOLEFINS, DIENES, ALKYNES, ARYLALKENES, ALKYL ALKENOATES, HALOALKENES, CARBALKOXYARYL ALKENES, ALKENYL ETHERS, NITROALKENES, NITROARYLALKENES AND ALKENYL BORATES.
Claim 2
Dependent Claim
127 words
IN A METHOD OF PREPARING AN ORGANOBORON COMPOUND BY REACTING AN UNSATURATED ORGANIC COMPOUND WITH A REAGENT CONSISTING OF AN ALKALI METAL BOROHYDRIDE AND A BORON HALIDE, THE STEP WHICH COMPRISES SLOWLY BRINGING ONE COMPONENT OF SAID REAGENT IN REACTIVE CONTACT IN AN INERT LIQUID CARRIER WITH THE OTHER COMPONENT OF THE REAGENT IN THE PRESENCE OF AN AMOUNT OF THE UNSATURATED ORGANIC COMPOJND CORRESPONDING STOICHIOMETRICALLY AT LEAST TO THE AMOUNT OF SAID ONE COMPONENT UNTIL SUBSTANTIALLY STOICHIOMETRIC AMOUNTS OF SAID ORGANIC COMPOUND AND SAIOD ALKALI METAL BOROHYDRIDE AND SAID BORON HALIDE HAVE REACTED TO FROM SAID ORGANOBORON COMPOUND, SAID UNSATURATED ORGANIC COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF OLEFINS, CYCLOOLEFINS, DIENES, ALKYNES, ARYLALKENES, ALKYL ALKENOATES, HALOALKENES, CARBALKOXYARYL ALKENES, ALKENYL ETHERS, NITROALKENES, NITROARYLALKENES AND ALKENYL BORATES.
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 |