Title:
ANTHRAQUINONE DYE MATERIAL
Document Type and Number:
Japanese Patent JPS60228566
Kind Code:
A
Abstract:
NEW MATERIAL:Anthraquinone compounds of the formula, wherein X is H, halogen, alkyl, alkoxyl, amino, nitro, -CH=CH-CH=CH-; Y is H, halogen, alkyl, alkoxyl.
EXAMPLE: 2-Bromo-11,12-dithia-6( H ),17( H )-6,7-diaza-dinaphtho[2,3a],[2,3c]-5,8- anthraquinone [II].
USE: Pigments and dyes for use in dyeing and particularly, recording materials in fields where laser beams are used.
PREPARATION: 2-Aminothiophenol and potassium hydroxide are reacted with 2,3,6-tribromoquinizarin to obtain a bis-cyclized product which is then recrystallized from chloroform, thus obtaining the desired compd. in a pure form.
Inventors:
EDOKORO SOUTAROU
ITOU MASAKI
MATSUOKA MASARU
ITOU MASAKI
MATSUOKA MASARU
Application Number:
JP8525684A
Publication Date:
November 13, 1985
Filing Date:
April 27, 1984
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
C09B5/60; (IPC1-7): C09B5/60
Attorney, Agent or Firm:
Uchihara Shin