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Title:
FLUORINE-CONTAINING QUINIZARIN DERIVATIVE
Document Type and Number:
Japanese Patent JP3171470
Kind Code:
B2
Abstract:

PURPOSE: To provide the subject new compound exhibiting excellent characteristics as a pigment component for fluoro coatings, etc., or as a functional pigment such as a dichroismic pigment for polarizing films and further useful as an intermediate for fl uorine-containing quinone dyestuffs.
CONSTITUTION: A fluorine-containing quinizarin derivative of formula I [Rf is 1-12C perfluoroalkyl, perfluoroalkenyl; X is single bond, -O-, etc.; A is group of formula II or III (Z is 1-5C alkyl; n is 0-2)], e.g. a compound of formula IV. The compound is obtained by reacting a fluorine-containing phthalic anhydride derivative of formula V with a halogenated phenol or halogenated naphthol of formula Vl or VII (Y is halogen) in the presence of a reaction accelerator preferably at 160-220°C under heating. The reaction accelerator is preferably a mixture of sulfuric acid with boric acid, and the weight ratio of the fluorine- containing phthalic acid: sulfuric acid: boric acid is 1:5-20:0.1-0.3.


Inventors:
Tomota, Hideyuki
Ando, Masaaki
Deyama, Kazuhito
Yano, Koji
Application Number:
JP1991000331780
Publication Date:
March 23, 2001
Filing Date:
December 16, 1991
Export Citation:
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Assignee:
NEOS CO LTD
International Classes:
B01J27/02; C07B61/00; C07C46/02; C07C50/34; C07C50/36; C07C319/20; C07C323/22; (IPC1-7): C07C50/34; B01J27/02; C07C50/36
Attorney, Agent or Firm:
青山 葆 (外1名)



 
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