Phthalocyanines and related compounds: XLI. Synthesis of 9,10-diphenylanthracene-2,3-dicarboxylic acid derivatives
摘要:
Derivatives of 9,10-diphenylanthracene-2,3-dicarboxylic acid were synthesized by the Diels-Alder reaction of 1,3-diphenylisobenzofuran with adducts of furan (or silvan) and the corresponding maleic (fumaric) acid derivative or with trans-cyclohex-4-ene-1,2-dicarbonitrile, followed by aromatization.
HEAT-SENSITIVE CHROMOGENIC COMPOSITION AND HEAT-SENSITIVE RECORDING MATERIAL FORMED USING SAID COMPOSITION
申请人:Yamamoto Chemicals, Inc.
公开号:EP2617578A1
公开(公告)日:2013-07-24
[Problem to be Solved]
To provide a heat-sensitive recording material having high fastness and a vivid hue.
[Solution]
A heat-sensitive color-developing composition containing a hydroxyquinoline compound having a methyl group and an acid anhydride compound represented by general formula (1):
wherein ring A represents a substituted or unsubstituted aromatic hydrocarbon ring, and n represents an integer of 1 to 3, and a heat-sensitive recording material containing the composition in a recording layer.