Title:
PREPARATION OF FLUOROBENZONITRILE COMPOUND
Document Type and Number:
Japanese Patent JPS5835161
Kind Code:
A
Abstract:
PURPOSE: To prepare the titled compound in high purity and yield, with little problems of the decomposition of solvent and the production of by-products, by reacting a chlorobenzonitrile compound with potassium fluoride in 1,3-dimethyl-2- imidazolidinone solvent.
CONSTITUTION: The objective compound is prepared by reacting a chlorobenzonitrile compound (having 1W3 Cl atoms at the o or p-position of the nitrile group; e.g. 2,6-difluorobenzonitrile) with potassium fluoride using 1,3-dimethyl-2- imidazolidinone as the solvent, at 120W250°C, preferably 170W200°C for 1W24hr. The amount of the solvent is 5W20pts.wt. per 1pt.wt. of the chlorobenzonitrile compound.
Inventors:
FUJIKAWA KANICHI
TSUJII YASUHIRO
MURAI SHIGEO
TSUJII YASUHIRO
MURAI SHIGEO
Application Number:
JP13369381A
Publication Date:
March 01, 1983
Filing Date:
August 26, 1981
Export Citation:
Assignee:
ISHIHARA SANGYO KAISHA
International Classes:
C07C255/50; C07C67/00; C07C253/00; (IPC1-7): C07C121/52