[EN] HEXAARYLBIIMIDAZOLE COMPOUNDS AND PHOTOPOLYMERIZATION INITIATOR COMPOSITIONS CONTAINING THE SAME [FR] COMPOSES A BASE D'HEXAARYL-BIIMIDAZOLE, ET COMPOSITIONS INITIATRICES DE PHOTOPOLYMERISATION CONTENANT CE COMPOSE
[EN] HEXAARYLBIIMIDAZOLE COMPOUNDS AND PHOTOPOLYMERIZATION INITIATOR COMPOSITIONS CONTAINING THE SAME [FR] COMPOSES A BASE D'HEXAARYL-BIIMIDAZOLE, ET COMPOSITIONS INITIATRICES DE PHOTOPOLYMERISATION CONTENANT CE COMPOSE
COF@Fe3O4 under hydrothermal conditions for the first time. The high surface area magnetic COF could exhibit superior catalytic activity for sustainable synthesis of trisubstituted and tetrasubstituted imidazoles and pyrroles in good to excellent yields in PEG as solvent under environmentally friendly, ambient conditions and making the overall process economical, efficient, and green. The retrievable
为环境良性过程的广泛应用设计廉价而高效的纳米多孔磁性催化剂是一个极具吸引力且具有挑战性的化学研究领域。通过三聚氰胺与对苯二醛在3,4-二羟基苯甲醛包覆磁性Fe 3 O 4纳米颗粒COF@Fe 3 O 4表面缩合反应制备新型多孔磁性共价有机骨架第一次在热液条件下。高表面积磁性 COF 可以在环境友好、环境条件下以 PEG 作为溶剂的良好收率,对三取代和四取代咪唑和吡咯的可持续合成表现出优异的催化活性,并使整个过程经济、高效和绿色。PEG中的可回收催化剂是通用的,适用于广泛的底物范围和官能团兼容性。通过FTIR、XRD、EDX和SEM光谱对COF@Fe 3 O 4的结构和形貌进行了表征。COF@Fe 3 O 4 磁性催化剂通过外部磁铁回收并使用多个循环而没有显着的催化活性损失。
Room temperature ionic liquid promoted improved and rapid synthesis of 2,4,5-triaryl imidazoles from aryl aldehydes and 1,2-diketones or α-hydroxyketone
作者:Shapi A. Siddiqui、Umesh C. Narkhede、Sanjay S. Palimkar、Thomas Daniel、Rajgopal J. Lahoti、Kumar V. Srinivasan
DOI:10.1016/j.tet.2005.01.116
日期:2005.4
An improved and rapid one-pot synthesis of 2,4,5-triaryl imidazoles in a roomtemperatureionicliquid is described, which does not need any added catalyst. Different ionicliquids based on 1-n-butyl and 1,3-di-n-butyl imidazolium salts were screened and their efficacy in terms of acidity and polarity have been correlated with yields and reaction period. The one-pot methodology resulting in excellent
Color filter black matrix resist composition and carbon black dispersion composition used for the composition
申请人:Kamata Hirotoshi
公开号:US20060041053A1
公开(公告)日:2006-02-23
The present invention provides a carbon black dispersion composition for a color filter black matrix resist composition, containing (A) a carbon black having specified physical properties (average primary particle diameter, concentration of surface carboxyl groups), (B) a copolymer having an amino group and/or its quaternary ammonium salt, and (C) an organic solvent, and a color filter black matrix resist composition that contains the above-mentioned dispersion composition, (D) a binder resin having a carboxyl group, (E) an ethylenically unsaturated monomer, (F) a photopolymerization initiator, and (G) specified multifunctional thiol compound and can easily form a thin film or pattern having high light-shielding property by photolithographic method pattern, has excellent storage stability, and exhibits sufficient sensitivity and resolution.
The present invention relates to (1) a photosensitive composition for color filter black matrix resists, containing (A) a binder resin having a carboxyl group, (B) a compound having an ethylenically unsaturated bond, (C) a photopolymerizing initiator, (D) a thiol compound having two or more mercapto-group-containing groups in which carbon atoms at the a-position and/or n-position with respect to the mercapto group have a substituent, and (E) an organic solvent, and having high sensitivity and excellent storage stability; and (2) color filterblack blackmatrix resist containing (1) the photosensitive composition for color filter black matrix resists and a black pigment (F).
Hexaarylbiimidazole compounds and photopolymerization initiator compositions containing the same
申请人:Kamata Hirotoshi
公开号:US20060079593A1
公开(公告)日:2006-04-13
The present invention provides a novel hexaarylbiimidazole compound of the following formula (1):
wherein each R
1
represents a halogen, and each R
2
represents an optionally substituted C
1-4
alkyl group.
The hexaarylbiimidazole compound of the present invention is useful as photoradical generators in photopolymerizable compositions used as resists and is characterized by low sublimating thermal decomposition products. The photopolymerizable compositions may be suitably used as resists or as color filters for color liquid crystal display elements, cameras and the like.
本发明提供了下式(1)的新型六芳基咪唑化合物:
其中每个 R
1
代表卤素,每个 R
2
代表任选取代的 C
1-4
烷基。
本发明的六芳基咪唑化合物在用作抗蚀剂的可光聚合组合物中可用作光引发剂,其特点是升华热分解产物少。这种可光聚合的组合物可适当用作抗蚀剂或彩色液晶显示元件、照相机等的彩色滤光片。