申请人:Fuji Photo Film Co., Ltd.
公开号:US04119777A1
公开(公告)日:1978-10-10
A thiazine derivative, which forms a color on contact with an electron accepting material, represented by the formula (II): ##STR1## wherein A.sub.1 and A.sub.2, which may be the same or different, each represents an aryl group or a heterocyclic group and A.sub.1 and A.sub.2 may combine together to form a heterocyclic ring or a fluorene ring, the ring B represents an aromatic hydrocarbon ring or a heterocyclic ring, and Y represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an amino group, an amido group, an oxy group or a thio group, but at least one of A.sub.1 and A.sub.2 or the ring formed by the combination of A.sub.1 and A.sub.2 represents an electron donating aryl group or an electron donating heterocyclic group, and a process for preparing the thiazine derivatives represented by the formula (II) by oxidizing a thioamide derivative represented by the formula (I): ##STR2## wherein A.sub.1, A.sub.2, B and Y are as above described.
一种噻嗪衍生物,与电子受体材料接触后形成一种颜色,其化学式表示为(II):##STR1## 其中,A1和A2(可以相同或不同)分别表示芳基或杂环基,A1和A2可以结合形成杂环环或芴环,环B表示芳香烃环或杂环环,Y表示氢原子、脂肪基、芳基、杂环基、氨基、酰胺基、氧基或硫基,但至少其中之一的A1和A2或由A1和A2组合形成的环表示电子给体芳基或电子给体杂环基。本发明还公开了一种制备由式(I)表示的噻酰胺衍生物的方法,该方法通过氧化式(I)来制备式(II)所表示的噻嗪衍生物:##STR2## 其中,A1、A2、B和Y如上所述。