US2991285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of cyanation and nitriles produced thereby
Assignee: Rohm and Haas Co
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Filing: 1958-09-09
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Granted: 1961-07-04
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Expires: 1978-09-09
Abstract
No abstract record available.
Inventors
- 👤 Wayne E Feely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:59
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D213/803; C07D213/84; C07D213/89; C07D215/00; C07D215/02; C07D215/16; C07D215/48; C07D215/50; C07D215/58; C07D215/60; C07D217/00; C07D217/02; C07D217/10; C07D217/22; C07D217/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A PROCESS FOR THE INTRODUCTION OF CYANO GROUPS INTO THE NUCLEUS OF A NITROGEN-CONTAINING HETEROCYCLE SELECTED FROM THE GROUP CONSISTING OF PYRIDINES, QUINOLINES AND ISOQUINOLINES, SAID PYRIDINES HAVING ONE OR MORE OF THE 2, 4 AND 6 POSITIONS AVAILABLE FOR SUBSTITUTION, SAID QUINOLINES HAVING AVAILABLE FOR SUBSTITUTION ONE OR MORE OF THE 2 AND 4 POSITIONS, SAID ISOQUINOLINES HAVING THE 1 POSITION AVAILABLE FOR SUBSTITUTION, SAID NITROGEN HAVING HETEROCYCLES CONTAINING AS SUBSTITUENTS GROUPS SELECTED FROM THE GROUP CONSISTING OF 0 TO 1 ELECTROPHILIC GROUPS SELECTED FROM THE GROUP CONSISTING OF CN AND COOR IN WHICH R IS AN ALKYL GROUP CONTAINING 1 TO 4 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-QUATERNARY INORGANIC SALTS IN WHICH THE ALKOXY GROUP HAS 1 TO 10 CARBON ATOMS OF SAID NITROGEN-CONTAINING HETEROCYCLES WITH A COMPOUND WHICH PROVIDES CYANIDE ION AT A TEMPERATURE OF FROM -10* C. TO 100*C. AND RECOVERING THE CYANO DERIVATIVE SO FORMED.
Claim 2
Dependent Claim
177 words
A PROCESS FOR THE INTRODUCTION OF CYANO GROUPS INTO THE NUCLEUS OF A NITROGEN-CONTAINING HETEROCYCLE SELECTED FROM THE GROUP CONSISTING OF PYRIDINES, QUINOLINES AND ISOQUINOLINES, SAID PYRIDINES HAVING ONE OR MORE OF THE 2, 4 AND 6 POSITIONS AVAILABLE FOR SUBSTITUTION, SAID QUINOLINES HAVING AVAILABLE FOR SUBSTITUTION ONE OR MORE OF THE 2 AND 4 POSITIONS, SAID ISOQUINOLINES HAVING THE 1 POSITION AVAILABLE FOR SUBSTITUTION, SAID NITROGEN HAVING HETEROCYCLES CONTAINING AS SUBSTITUENTS GROUPS SELECTED FROM THE GROUP CONSISTING OF 0 TO 1 ELECTROPHILIC GROUPS SELECTED FROM THE GROUP CONSISTING OF CN AND COOR IN WHICH R IS AN ALKYL GROUP CONTAINING 1 TO 4 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-QUATERNARY INORGANIC SALTS IN WHICH THE ALKOXY GROUP HAS 1 TO 10 CARBON ATOMS OF SAID NITROGEN-CONTAINING HETEROCYCLES WITH A COMPOUND WHICH PROVIDES CYANIDE ION AT A TEMPERATURE OF FROM -10* C. TO 100*C. AND RECOVERING THE CYANO DERIVATIVE SO FORMED.
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |