US3046278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of cyanation
Assignee: Rohm and Haas Co
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Filing: 1960-10-24
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Granted: 1962-07-24
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Expires: 1980-10-24
Abstract
No abstract record available.
Inventors
- 👤 Wayne E Feely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:44
CPC Classifications
B; B01; B01J; B01J41/00; B01J41/04; B01J41/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A PROCESS FOR THE INTRODUCTION OF CYANO GROUPS INTO THE NUCLEUS OF A NITROGEN HETEROCYCLE SELECTED FROM THE GROUP CONSISTING OF PYRIDINE, QUINOLINE AND ISOQUINOLINE, SAID PYRIDINE HAVING AT LEAST ONE OF THE 2, 4 AND 6 POSITIONS AVAILABLE FOR SUBSTITUTION, SAID QUINOLINE HAVING AVAILABLE FOR SUBSTITUTION AT LEAST ONE OF THE 2 ANMD 4 POSITIONS, SAID ISOQUINOLINES HAVING THE 1 POSITION AVAILABLE FOR SUBSTITUTION, SAID NITROGEN HETEROCYCLES HAVING AS SUBSTITUENTS GROUPS SELECTED FROM THE GROUP CONSISTING OF 0 TO 1 ELECTROPHILIC GROUPS SELECTED FROM THE GROUP CONSITING OF CN AND COOR IN WHICH R IS AN ALKYL GROUP CONTAINING 1 TO 8 CARBON ATOMS, 0 TO 3 SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF ALKOXY HAVING 1 TO 4 CARBON ATOMS, ALKYL HAVING 1 TO 8 CARBON ATOMS, AND ARYL, WHICH COMPRISES REACTING THE N-ALKOXY-QUARTERNARY INORGANIC SALTS IN WHICH THE ALKOXY GROUP HAS 1 TO 10 CARBON ATOMS OF SAID NITROGEN HETEROCYCLES WITH THE CYANIDE SALT OF A STRONG BASE ANION EXCHANGER AT A TEMPERATURE OF FROM -10* TO 100*C. AND RECOVERING THE CYANO DERIVATIVE SO FORMED.
Claim 2
Dependent Claim
178 words
A PROCESS FOR THE INTRODUCTION OF CYANO GROUPS INTO THE NUCLEUS OF A NITROGEN HETEROCYCLE SELECTED FROM THE GROUP CONSISTING OF PYRIDINE, QUINOLINE AND ISOQUINOLINE, SAID PYRIDINE HAVING AT LEAST ONE OF THE 2, 4 AND 6 POSITIONS AVAILABLE FOR SUBSTITUTION, SAID QUINOLINE HAVING AVAILABLE FOR SUBSTITUTION AT LEAST ONE OF THE 2 ANMD 4 POSITIONS, SAID ISOQUINOLINES HAVING THE 1 POSITION AVAILABLE FOR SUBSTITUTION, SAID NITROGEN HETEROCYCLES HAVING AS SUBSTITUENTS GROUPS SELECTED FROM THE GROUP CONSISTING OF 0 TO 1 ELECTROPHILIC GROUPS SELECTED FROM THE GROUP CONSITING OF CN AND COOR IN WHICH R IS AN ALKYL GROUP CONTAINING 1 TO 8 CARBON ATOMS, 0 TO 3 SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF ALKOXY HAVING 1 TO 4 CARBON ATOMS, ALKYL HAVING 1 TO 8 CARBON ATOMS, AND ARYL, WHICH COMPRISES REACTING THE N-ALKOXY-QUARTERNARY INORGANIC SALTS IN WHICH THE ALKOXY GROUP HAS 1 TO 10 CARBON ATOMS OF SAID NITROGEN HETEROCYCLES WITH THE CYANIDE SALT OF A STRONG BASE ANION EXCHANGER AT A TEMPERATURE OF FROM -10* TO 100*C. AND RECOVERING THE CYANO DERIVATIVE SO FORMED.
References Cited (Backward Citations)
US2943091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |