1,4-Dihydropyridine charge control agents for electrostatographic toners and developers
申请人:EASTMAN KODAK COMPANY
公开号:EP1109070A2
公开(公告)日:2001-06-20
A charge control agent is disclosed selected from the group consisting of 1,4-dihydropyridines having the following general structure:
where R1, R2, R3, R4, R5, X, and Z are defined in the specification. These compounds are useful in electrostatographic toners and developers.
本发明公开了一种电荷控制剂,它选自具有以下一般结构的 1,4-二氢吡啶类:
其中 R1、R2、R3、R4、R5、X 和 Z 的定义见说明书。这些化合物适用于电致发光调色剂和显影剂。
Synthesis of ethoxycarbonyl-1,4- and -1,2-dihydropyridinecarboxylic acid amides
Synthesis of benzo[c][2,7]naphthyridine-6-ones via cascade aromatization/C(sp2)–H amidation of 1,4-dihydropyridines
作者:Laichun Luo、Qiang Wang、Xiaozhi Peng、Chunling Hu、Hong Wang
DOI:10.1016/j.tetlet.2017.06.009
日期:2017.7
A K2S2O8-mediated cascade dehydrogenative aromatization/intramolecularC(sp2)–Hamidation of 1,4-dihydropyridines is described. This method provides an efficient access to multisubstituted benzo[c][2,7]naphthyridine-6-ones in 38–74% yields.
描述了AK 2 S 2 O 8介导的1,4-二氢吡啶的级联脱氢芳构化/分子内C(sp 2)-H酰胺化。该方法可有效获得多取代的苯并[ c ] [2,7]萘啶-6-酮,产率为38-74%。