发明授权
US06228553B1 Pyrrolo [1,2-A] pyrimidine compound and heat-sensitive recording material using the same 失效
吡咯并[1,2-A]嘧啶化合物和使用其的热敏记录材料

Pyrrolo [1,2-A] pyrimidine compound and heat-sensitive recording material using the same
摘要:
A pyrrolo[1,2-a]pyrimidine compound providing an excellent color-forming property is provided. Further, a novel cyan color-forming type diazo heat-sensitive recording material having excellent shelf life, image light-resistance and image fixing property is provided. The pyrrolo[1,2-a]pyrimidine compound is represented by following general formula (1). The heat-sensitive recording material comprises a substrate, and on the substrate, a heat-sensitive recording layer containing a diazonium salt compound and a coupler. The coupler contains at least one of pyrrolo[1,2-a]pyrimidine compounds represented by following general formula (1). In the formula, R1 represents an aryl group or the like, R2 represents an alkoxycarbonyl group or the like, R3 and R4 represent an acyl group or the like, and R5 represents a hydrogen atom or the like.
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