离子液体 (IL) 是一类低熔点盐,其物理化学特性适用于化学加工和电池设计等一系列工业应用。在工业中广泛采用IL的主要挑战包括其生态和细胞毒性作用,然而,这开启了IL作为新型抗癌药物的可能性。因此,了解促进 IL 细胞毒性的结构特征非常重要。影响 IL 细胞毒性的关键结构特征包括阳离子头基的大小和亲脂性。在这项研究中,评估了含有相对较大的三环和四环阳离子的吖啶基离子液体的细胞毒性作用。研究发现,基于 9-苯基吖啶鎓的 IL 是有效的细胞毒性剂,可降低人 MDA-MB-231 乳腺癌细胞的活力,IC 浓度在纳摩尔范围内。在机制研究中,发现与基于吡啶的类似物 [CPy][I] 不同,基于吖啶的 IL 不会抑制氧化磷酸化或诱导活性氧形成,而是可能靶向其他线粒体过程或组件,例如线粒体脱氧核糖核酸。
A magnetic nanoparticle-supported N-heterocyclic carbene-palladacycle: an efficient and recyclable solid molecular catalyst for Suzuki–Miyaura cross-coupling of 9-chloroacridine
作者:Qinyue Deng、Yajing Shen、Haibo Zhu、Tao Tu
DOI:10.1039/c7cc06958h
日期:——
directly anchoring the structuraldefined acenaphthoimidazolylidene palladacycle with a long tail on magnetic nanoparticles (MNPs), and functioned as a solid molecular catalyst and exhibited extremely high catalytic activity towards the challenging Suzuki–Miyaura cross-coupling reactions between less-studied heterocyclic 9-chloroacridine and diverse boronic acids. Remarkably, the catalyst could be used 5
novel palladium-catalyzed protocol for the synthesis of 9-arylacridines via tandem reaction of 2-(arylamino)benzonitrile with arylboronic acids in water has been developed with good functional group tolerance. The present synthetic route could be readily scaled up to gram quantity without difficulty. This methodology was further extended to the synthesis of a 4′-OH derivative, which showed estrogenic
Synthesis of Substituted Acridines through a Palladium-Catalyzed Condensation/Cyclization/Tautomerization Sequence
作者:Xiangui Chen、Yanjun Xie、Cheng Li、Fuhong Xiao、Guo-Jun Deng
DOI:10.1002/ejoc.201601553
日期:2017.1.18
An efficient synthesis of 9‐aryl‐substitutedacridines from cyclohexanones and 2‐aminobenzophenones under palladium‐catalyzed conditions was developed. By using molecular oxygen as a green oxidant, various cyclohexanones act as the aryl source to construct the nitrogen‐containing heterocycles through a condensation/cyclization/tautomerization sequence.
Es wird ein photopolymerisierbares Gemisch beschrieben, das als wesentliche Bestandteile ein polymeres Bindemittel, eine radikalisch polymerisierbare Verbindung, einen Photoinitiator, einen Leukofarbstoff und eine Verbindung mit mindestens einer Epoxygruppe enthält.
Das Gemisch hat eine bessere Dunkellagerfähigkeit als bekannte Gemische und wird vorzugsweise zur Herstellung von Trockenphotoresist verwendet.