US2919281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of acetylenic alcohols
Assignee: Norda Essential Oil and Chemical Co
•
Filing: 1958-07-23
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Granted: 1959-12-29
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Expires: 1978-07-23
Abstract
No abstract record available.
Inventors
- 👤 Chodroff Saul
- 👤 Dunkel Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:32
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/36; C07C29/38; C07C29/42; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN THE SYNTHESIS OF ACETYLNIC ALCOHOLS BY TEH PROCESSF WHICH COMPRISES REACTING A MIXTURE CONSISTING ESSENTIALLY OF POTASSIUM HYDROXIDE, A SMALL PROPORTION OF A MONOHYDRIC ALCOHOL CONTAINING FROM THE THREE TO ELEVEN CARBON-ATOMS, AN ORGANIC LIQUID AND AN ORGANIC CARBONYL COMPOUND WITH A 1-ALKYNE HAVING A HYDROGEN ATOM IN THE 1-POSITION TO EFFECT REACTION BETWEEN THE ALKEYNE, CARBONYL COMPOUND AND POTASSIUM HYDROXIDE TO PRODUCE THE POTASSIUM DERIVATIVE OF THE CORRESPONDING ACETYLENIC ALCOHOL, HYDROLYING THE POTASSIUM DERIVATIVE WITH WATER TO PRODUCE THE ACETYLENIC ALCOHOL, AND SEPARATING THE LATTER, THE IMPROVEMENT WHICH COMPRISES CONDUCTING THE REACTION IN THE PRESENCE OF AN ALIPHATIC AMIDE HAVING THE FORMULA RCONR1R2 WHEREIN R,R1 AND R2 ARE SELECTED FROMT THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKYL RADICALS HAVING FROM ONE TO ABOUT FIVE CARBON ATOMS.
Claim 2
Dependent Claim
129 words
IN THE SYNTHESIS OF ACETYLNIC ALCOHOLS BY TEH PROCESSF WHICH COMPRISES REACTING A MIXTURE CONSISTING ESSENTIALLY OF POTASSIUM HYDROXIDE, A SMALL PROPORTION OF A MONOHYDRIC ALCOHOL CONTAINING FROM THE THREE TO ELEVEN CARBON-ATOMS, AN ORGANIC LIQUID AND AN ORGANIC CARBONYL COMPOUND WITH A 1-ALKYNE HAVING A HYDROGEN ATOM IN THE 1-POSITION TO EFFECT REACTION BETWEEN THE ALKEYNE, CARBONYL COMPOUND AND POTASSIUM HYDROXIDE TO PRODUCE THE POTASSIUM DERIVATIVE OF THE CORRESPONDING ACETYLENIC ALCOHOL, HYDROLYING THE POTASSIUM DERIVATIVE WITH WATER TO PRODUCE THE ACETYLENIC ALCOHOL, AND SEPARATING THE LATTER, THE IMPROVEMENT WHICH COMPRISES CONDUCTING THE REACTION IN THE PRESENCE OF AN ALIPHATIC AMIDE HAVING THE FORMULA RCONR1R2 WHEREIN R,R1 AND R2 ARE SELECTED FROMT THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKYL RADICALS HAVING FROM ONE TO ABOUT FIVE CARBON ATOMS.
References Cited (Backward Citations)
US2487007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |