发明公开
EP0164260A1 Novel benzoquinone derivatives and their use as color-developers in recording material, process for their production and the production of corresponding hydroquinones 失效
苯醌衍生物和它们作为彩色显影剂在记录材料用途,它们的制备方法和制备相应的氢醌的方法。

Novel benzoquinone derivatives and their use as color-developers in recording material, process for their production and the production of corresponding hydroquinones
摘要:
Disclosed herein is a novel benzoquinone derivative represented by the following general formula (I):
wherein R, means an alkyl or cycloalkyl group, R 2 denotes an alkyl or cycloalkyl group, a phenyl group which may optionally contain one or more halogen atoms and/or alkyl, cycloalkyl, alkoxy, alkylne, phenoxy, phenyl and/or biphenylyl groups, or a benzyl or naphthyl group which may optionally contain one or more methyl groups. This compound is useful as an oxidative color-developing agent for recording materials. The compound can be prepared by oxidation of the corresponding hydroquinone.
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