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Title:
CATALYST FOR PREPARING ACYL GROUP-SUBSTITUTED AROMATIC COMPOUND AND PREPARATION OF ACYL GROUP-SUBSTITUTED AROMATIC COMPOUND
Document Type and Number:
Japanese Patent JPH11319568
Kind Code:
A
Abstract:

To improve activity of a catalyst and further to remarkably decrease deterioration of the activity of the catalyst with time.

An arom. compd. and a carboxylic acid or its deriv. are reacted together in the presence of a catalyst wherein the area strength ratio of an absorption (around 1543 cm-1) based on adsorption of pyridine to a Bronsted acid point in the infrared absorption spectra to an absorption (1454 cm-1) based on adsorption of pyridine to a Lewis acid point is at least 10 when pyridine is brought to adsorption equilibrium at 250°C.


Inventors:
INOHARA MASAHIRO
MORI YOICHI
Application Number:
JP13997898A
Publication Date:
November 24, 1999
Filing Date:
May 21, 1998
Export Citation:
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Assignee:
TORAY INDUSTRIES
International Classes:
B01J29/06; B01J29/08; B01J29/18; B01J29/40; B01J29/70; C07B41/06; C07B61/00; C07C45/46; C07C49/76; (IPC1-7): B01J29/06; B01J29/08; B01J29/18; B01J29/40; B01J29/70; C07B41/06; C07C45/46; C07C49/76