Title:
【発明の名称】ジスアゾ化合物
Document Type and Number:
Japanese Patent JPH0784565
Kind Code:
B2
Abstract:
NEW MATERIAL:Compounds of formula I, wherein A is a group of formula II, IIIor IV (wherein R is alkyl, alkoxy, NO2, CN, halogen, halomethyl; n is 0-3). EXAMPLE:Compounds of formula V, wherein R1-R3 are each H. USE:Disazo compds. which are highly sensitive, has excellent image reproducibility of red copy and are useful as charge generating materials for the sensitive material of electrophotographic material and laminated sensitive material. PREPARATION:3,3-Diaminobenzophenone is diazotized. The resulting tetrazonium salt compd. of formula VI [wherein X is an anionic functional group (e.g. BF4)] is reacted with a compd. of formula VII, VIII or IX.
Inventors:
Mitsuru Hashimoto
Application Number:
JP17265284A
Publication Date:
September 13, 1995
Filing Date:
August 20, 1984
Export Citation:
Assignee:
株式会社リコー
International Classes:
C07C67/00; C07C241/00; C07C245/20; C09B35/039; C09B35/233; G03G5/06; H01L31/08; H01L51/42; (IPC1-7): C09B35/233
Domestic Patent References:
| JP60131539A | ||||
| JP5422834A |
Attorney, Agent or Firm:
Morio Sada
Next Patent: アゾ顔料の製造法