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US3755412A Expired / Lapsed US ⏱️ 0.0 years remaining

Alkylation of acetonitriles

Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1969-07-07
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Granted: 1973-08-28
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Expires: 1989-07-07
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Abstract

Abstract THIS INVENTION RELATES TO ALKALI METAL SALTS OF ORGANONITRILE CARBANIONS, ALKYLATED ORGANONITRILE HYDROCARBONS AND TO A PROCESS FOR THEIR FORMATION. THE ALKALI METAL SALT COMPOSITIONS ARE PREPARED BY REACTING AN ACTIVE ORGANIC METHYLENE COMPOUND CONTAINING AT LEAST ONE NITRILE SUBSTITUENT WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL BASE IN THE PRESENCE OF A DIORGANO SULFOXIDE. THE ALKYLATED COMPOSITIONS CAN BE PREPARED BY REACTING THE ALKALI METAL SALTS OF THE ORGANONITRILE CARBANIONS WITH AN ORGANOHALIDE. ALTERNATIVELY, THE ALKYLATED COMPOSITIONS CAN BE PREPARED IN A ONE-STEP OPERATION BY REACTING THE ORGANONITRILE COMPOSITION WITH AQUEOUS ALKALI METAL BASE AND ORGANOHALIDE IN THE PRESENCE OF A DIORGANO SULFOXIDE, PREFERABLY DIMETHYL SULFOXIDE.

Inventors

  • 👤 L Taranko
  • 👤 R Perry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 03:46
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/30

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-27 1977-02-26 1977-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-27 1981-02-26 1981-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-27 1985-02-26 1985-08-28 $7700.00 Window Closed / Lapsed

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