Title:
TETRASUBSTITUTED DIPHENOQUINONE
Document Type and Number:
Japanese Patent JP3109915
Kind Code:
B2
Abstract:
PURPOSE: To provide a new unsymmetrical tetrasubstituted diphenoquinone having improved electrical characteristics of tetrasubstituted diphenoquinone, bettered solubility in an organic solvent and improved affinity for a binder resin.
CONSTITUTION: A 3,5-di(isoalkyl)-3'-phenyl-5'-t-alkyl-4,4'-diphenoquinone of the formula (R1 is an isoalkyl; R2 is a t-alkyl) such as 3,5-di(isopropyl)-3'-phenyl-5'-t- butyl-4,4'-diphenoquinone. The compound is obtained by oxidizing and coupling a 2,6-di(isoalkyl)phenol with a 2-phenyl-6-t-alkylphenol in the presence of copper chloride and an amine compound.
Inventors:
Fujinao Matsunaga
Miwa Ueno
Miwa Ueno
Application Number:
JP21146992A
Publication Date:
November 20, 2000
Filing Date:
August 07, 1992
Export Citation:
Assignee:
Honshu Chemical Industry Co., Ltd.
International Classes:
C07C49/683; C07C46/08; C07C50/08; C09B57/00; G03G5/06; (IPC1-7): C07C49/683; C09B57/00; G03G5/06
Domestic Patent References:
| JP6194853A |
Attorney, Agent or Firm:
Itsuro Makino
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