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EP0635486A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for the preparation of fluorobenzonitriles

Assignee: Clariant Produkte Deutschland GmbH
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Filing: 1994-07-13
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Granted: —
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Expires: 2014-07-13
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Abstract

Abstract Translated from German Fluorbenzonitrile und Chlorfluorbenzonitrile werden in vorteilhafter Weise durch eine Chlor-Fluor-Austauschreaktion aus den entsprechenden Chlorbenzonitrilen und einem Alkalimetallfluorid hergestellt, indem man die Umsetzung mit einer quartären Ammoniumverbindung, die mindestens einen Alkoxypolyoxyalkyl-Rest enthält, katalysiert. Fluorobenzonitriles and chlorofluorobenzonitriles are advantageously produced by a chlorine-fluorine exchange reaction from the corresponding chlorobenzonitriles and an alkali metal fluoride, by catalyzing the reaction with a quaternary ammonium compound which contains at least one alkoxypolyoxyalkyl radical.

Inventors

  • 👤 Dr. Thomas Schach
  • 👤 Dr. Theodor Papenfuhs
  • 👤 Dr. Ralf Pfirmann

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 19:22
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/30

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