发明授权
- 专利标题: 8-Benzimido substituted quinaphthalone derivatives
- 专利标题(中): 8-苯甲亚胺基取代的喹酞酮衍生物
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申请号: US718198申请日: 1976-08-26
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公开(公告)号: US4067870A公开(公告)日: 1978-01-10
- 发明人: Keizo Shimada , Toshiaki Harada , Masahiro Koga , Shizuo Nagahama
- 申请人: Keizo Shimada , Toshiaki Harada , Masahiro Koga , Shizuo Nagahama
- 申请人地址: JA Osaka
- 专利权人: Teijin Limited
- 当前专利权人: Teijin Limited
- 当前专利权人地址: JA Osaka
- 优先权: JA50-104938 19750901; JA50-104941 19750901; JA51-42327 19760416
- 主分类号: C09B25/00
- IPC分类号: C09B25/00
摘要:
A compound of the following formula ##STR1## wherein R represents an alkyl group containing 1 to 4 carbon atoms or a phenyl group; X.sub.1 represents a chlorine or bromine atom; Y represents the group of the formula ##STR2## WHEREIN X.sub.2 and X.sub.3 each represent a chlorine or bromine atom, and n is an integer of 2 to 4; and ring A may be substituted by an alkyl group containing 1 to 4 carbon atoms and or a halogen atom.The compound of formula (I) can be easily produced by reacting a quinoline derivative of the formula ##STR3## wherein R, X.sub.1 and the ring A are the same as defined above, with an aryldicarboxylic acid or its reactive derivatives.The compounds of formula (I) are useful as yellow organic pigments.
公开/授权文献
- US5714020A Process for heat treatment of a steel rail 公开/授权日:1998-02-03
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