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1.
R. R. Gataullin R. R. Ishberdina A. M. Sotnikov I. B. Abdrakhmanov 《Russian Journal of Applied Chemistry》2005,78(3):438-440
Alkenylation of 6-methyl-2-(2-cyclohexen-1-yl)- and 2-(1-cyclohexen-1-yl)anilines with piperylene in the presence of AlCl3 and transformation of the resulting cyclohexenylanilines into carbazole structures were studied.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 3, 2005, pp. 441–443.Original Russian Text Copyright © 2005 by Gataullin, Ishberdina, Sotnikov, Abdrakhmanov. 相似文献
2.
设计并合成了一种基于喹诺酮衍生物的双极绿色磷光主体材料1-甲基-3-[4-(9-咔唑基)苯基]-4-苯基喹啉-2(1 H)-酮.计算发现,化合物的HOMO轨道的电子云位于咔唑基团,LUMO轨道的电子云位于喹诺酮基团,是一种良好的双极材料.化合物的磷光发射峰为515 nm(2.41 eV),符合绿色磷光主体材料的基本要求(>2.4 eV).热失重和差热分析结果表明,该化合物具有较高的热稳定性,分解温度和玻璃化转变温度分别为312℃和105℃.研究结果表明:该新型化合物是一种潜在的具有双极特性的绿色磷光主体材料. 相似文献
3.
AbstractNine 2-(9H-carbazol-1-yl)anilines with rings fused at the 3,4-position were acylated at the amino group with chloroacetyl, 3-chloropropanoyl, or 4-chlorobutyryl chloride, at yields of 85–99%. The resulting ω-chloroamides were exposed to potassium tert-butoxide in THF. All nine acetamides annulated exclusively at the carbazole N atom, giving benzodiazocinocarbazoles at 76–91% overall yield. The only propanamide prepared underwent α,β-elimination, giving the corresponding acrylamide at 70% overall yield. All nine butanamides annulated exclusively at the amide nitrogen, giving pyrrolidin-2-ones at 70–94% overall yield. Additionally, the 1-indanone derived carbazolylaniline followed the same annulation pattern, but the benzylic methylene group was oxidized, giving the corresponding fluorenones. The cyclohexanone-derived carbazolylaniline was also converted into a maleimide, which participated in a Diels-Alder reaction with cyclopentadiene. Attempts to replace the amino group in the starting material via diazotization were unsuccessful. Instead, a Widman-Stoermer reaction was observed, in which the diazonium group attacked the carbazole 2-position, giving the corresponding cinnoline. 相似文献
4.
Wayland E. Noland Christopher D. Brown Abigail E. Zabronsky Kenneth J. Tritch 《Tetrahedron》2018,74(19):2391-2404
Twenty-nine examples of 2-(9H-carbazol-1-yl)anilines were obtained in yields from 27 to 95% by refluxing 2,3′-biindolyl (1 equiv.) and ketones (1 equiv.) in ethanolic HCl. Alkyl, cyclic, and aryl ketones were found to be compatible with this method, however, aldehydes are not. Because the reaction proceeds by addition of the carbonyl C atom to the biindolyl 3-position, this method has high regioselectivity. One example is presented of bridging the two N atoms in the carbazolylaniline product with an acetaldehyde synthon to give a benzodiazepino[lm]carbazole. Also, one example is given of installing a dimethylamino group at the α-position of the starting ketone to give an indolo[3,2-c]carbazole. 相似文献
5.
Summary. 1-(Dipyrrin-2-yl)-1-(dipyrrin-3-yl)methane, the N-confused analog of biladiene-ac, is prepared by condensation of 2,3-dipyrromethane with two molecules of 2-formylpyrrole in dichloromethane in the presence of hydrogen bromide. Self-assembly of the ligand with Zn(II) in dichloromethane and methanol offers a dinuclear dimeric complex with a ligand:metal ratio of 2:2. X-Ray crystal structure analysis reveals two ligands bound through a head-to-tail pattern to two zinc centers to form a severely distorted helical conformation, which has the shape of a rectangle. 相似文献
6.
Lanying Yang Yi Zhang Qingqi Chen Jin Shi Ma 《Monatshefte für Chemie / Chemical Monthly》2004,417(3):223-229
1-(Dipyrrin-2-yl)-1-(dipyrrin-3-yl)methane, the N-confused analog of biladiene-ac, is prepared by condensation of 2,3-dipyrromethane with two molecules of 2-formylpyrrole in dichloromethane in the presence of hydrogen bromide. Self-assembly of the ligand with Zn(II) in dichloromethane and methanol offers a dinuclear dimeric complex with a ligand:metal ratio of 2:2. X-Ray crystal structure analysis reveals two ligands bound through a head-to-tail pattern to two zinc centers to form a severely distorted helical conformation, which has the shape of a rectangle. 相似文献
7.
An efficient synthetic method for heterocycles containing both carbazole and 1,3,4-thiadiazole moieties is described. 9-Ethyl-9H-carbazol-3-carbaldehyde reacted with 4-arylthiosemicarbazides, with acetic acid as catalyst, to give 1-(9-ethyl-9H-carbazol-3-yl)methylene-4-arylthiosemicarbazides, which were further treated with manganese dioxide at room temperature in acetone to give 5-(9-ethyl-9H-carbazol-3-yl)-N-aryl-1,3,4-thiadiazol-2-amines in good to high yield. This procedure has the advantages of mild conditions, easy separation, and simple manipulation. 相似文献
8.
1-{6-(2-Methylbenzoyl)-N-ethylcarbazole-3-yl}-ethane-1-one oxime O-acetate, an excellent two-photon carbazole photoinitiator, was synthesized with moderate yield (76.9%) starting from the
successive o-methyl benzoylation and acetylation of N-ethylcarbazole, followed by oximation and esterification in the article. The structure was confirmed by 1H-NMR, 13C-NMR, and IR. The by-product acetic acid in the neutralization of hydroxylamine hydrochloride is effectively utilized in
esterification with the aid of the one-pot process. In particular, the phase transfer technique is applied to overcome the
deficiency of low reaction rate caused by heterogeneous reaction conditions in esterification. 相似文献
9.
Marciniec B Majchrzak M Prukała W Kubicki M Chadyniak D 《The Journal of organic chemistry》2005,70(21):8550-8555
(E)-N-(Silyl)vinylcarbazole has been easily prepared via a new catalytic route, silylative coupling (SC) of vinylcarbazole with vinyltrisubstituted silanes catalyzed by [RuH(Cl)(CO)(PCy3)2]. X-ray structures of two silylvinylcarbazoles as first N-vinylcarbazole derivatives have been resolved. The Pd-catalyzed Hiyama coupling reaction (also as the tandem reaction with SC) of synthesized (E)-N-(triethoxysilyl)vinylcarbazole with iodobenzene has been performed to afford (E)-N-(phenylvinyl)carbazole with high yield and stereoselectivity. 相似文献
10.
合成了新的N-乙基咔唑衍生物: 3,6-二[2-(8-羟基喹啉基)乙烯基]咔唑(4)及其锌配合物(5); 化合物4经质谱、红外光谱、核磁共振氢谱、元素分析表征其结构, 并测定了它的荧光光谱. 结果显示: 化合物4的荧光发射为蓝绿色光(500 nm), 其发射光谱随着溶剂极性的增大荧光光谱向长波方向移动(即发生红移); 同时, 考察了化合物5的荧光性质, 其荧光发光峰值为600 nm, 与2-甲基-8-羟基喹啉锌相比, 发生了明显的红移. 相似文献
11.
在氧化铜和溴化铜存在的条件下, 4-[1,2-(2-吡啶基)亚甲硫基]-苯甲酸(L′)经原位消去反应, 形成了一个新的有机配体4-[1,2,2-(2-吡啶基)-(2-吡啶亚甲基)亚甲硫基]-苯甲酸(L), 并与铜形成配位聚合物[Cu2(L)Br2]n(1){L=4-[1,2,2-(2-吡啶基)-(2-吡啶亚甲基)亚甲硫基]-苯甲酸}, 通过红外光谱、元素分析和X射线单晶衍射等手段对其结构进行了表征. 相似文献
12.
Guan M Bian ZQ Zhou YF Li FY Li ZJ Huang CH 《Chemical communications (Cambridge, England)》2003,(21):2708-2709
An electron transporting moiety (1,3,4-oxadiazole) and a hole transporting moiety (carbazole) were combined to create 2-(4-biphenylyl)-5-(4-carbazole-9-yl)phenyl-1,3,4-oxadiazole (CzOxa), a three layer device with a configuration of ITO/TPD(50 nm)/CzOxa(40 nm)/AlQ(40 nm)/Mg0.9Ag0.1(200 nm)/Ag(80 nm) which exhibited a blue emission peak at approximately 470 nm (x = 0.14, y = 0.19) with a maximum luminance of 26,200 cd m(-2) at a drive voltage of 15 V and a maximum luminous efficiency of 2.25 lm W(-1). 相似文献
13.
D. Ashok Arram Ganesh B. Vijaya Lakshmi S. Ravi 《Russian Journal of General Chemistry》2014,84(6):1237-1242
Series of new (E)-1-aryl-3-[2-(piperidin-1-yl)quinolin-3-yl]prop-2-en-1-ones and (E)-1-aryl-3-[2-(pyrrolidin-1-yl)quinolin-3-yl]prop-2-en-1-ones have been efficiently prepared via the Claisen-Schmidt condensation of 2-(piperidin-1-yl)quinoline-3-carbaldehyde and 2-(pyrrolidin-1-yl)quinoline-3-carbaldehyde, respectively, with aryl methyl ketones under conditions of ultrasound and microwave irradiation. Structures of the products have been confirmed by IR, 1H NMR, 13C NMR, and mass spectroscopy, as well as by elemental analysis. Evaluation of the in vitro antibacterial activity against bacterial (Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli) and fungal (Aspergillus niger and Candida metapsilosis) strains has revealed good antimicrobial activity of some of the tested compounds. 相似文献
14.
设计合成了2-(N'-乙基咔唑-3'-烯基)-8-羟基喹啉. 以UV-Vis, 1H NMR, FT-IR, 元素分析和MS进行了结构表征, 并测定了产物的光致发光(PL)性质. 运用Gaussian98量子化学程序包, 采用B3LYP密度泛函(DFT)的方法, 在6-31G(d,p)水平上对分子的几何构型进行结构优化; 预测目标产物的振动光谱, 结果表明与实验值相符. 相似文献
15.
JIANG Yinzhi & HU Weixiao . Department of Pharmaceutical Science Zhejiang University of Technology Hangzhou China . Department of Applied Chemistry Zhejiang Institute of Science Technology Hangzhou China 《中国科学B辑(英文版)》2004,47(3)
Rare earth complexes with organic ligands have been used as luminescence-material usually. Except their luminescent property, the complexes of trivalent lanthanide ions have low toxicity and powerful para-magnetic properties[1,2], so the lanthanide complexes are associated with important biological uses as diag-nostic tools and medicines[36]. Recently, there are some reports on Ce(III) complexes, some of which show anti-cancer activities[7]. S- tetrazines can be used as poly-dentate chelatin… 相似文献
16.
Sylvie Pailloux Iris Binyamin Lorraine M. Deck Benjamin P. Hay Eileen N. Duesler Lev N. Zakharov W. Scott Kassel Arnold L. Rheingold Robert T. Paine 《Polyhedron》2009,28(18):3979-3984
The lanthanide coordination chemistry of the new ligand 2-hydroxy-2-(1-oxy-pyridin-2-yl)-N,N-diphenyl acetamide (5) has been examined. X-ray crystal structure determinations for the free ligand 5 and for one complex, [La(5)6] (NO3)3·7H2O, have been completed and the latter reveals an unexpected bidentate chelation mode for 5 that involves the amide carbonyl oxygen atom and the 2-hydroxy oxygen atom of each ligand. The six bidentate ligands generate an icosohedral inner coordination sphere. The N-oxide oxygen atom of each ligand also hydrogen bonds with a 2-hydroxyl hydrogen atom in a neighboring ligand molecule in the same molecular unit. 相似文献
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19.
Hakan Kandemir 《合成通讯》2013,43(22):2583-2591
A simple and efficient synthesis of novel 3-(benzimidazol-2-yl)- and 3,6-di(benzimidazol-2-yl)-9-ethyl-9H-carbazoles is described. The synthetic approach for the preparation of 2-substituted benzimidazoles 4–8 and bis-benzimidazoles 9–12 was achieved by the condensation of carbazole-3-carbaldehyde 2 and carbazole-3,6-dicarbaldehyde 3 with o-phenyldiamines in dimethylformamide or dimethylsulfoxide in moderate to excellent yield. The identities of synthesized compounds were confirmed using 1H NMR, 13C NMR, infrared (IR), and high-resolution mass spectrometry (HRMS). 相似文献
20.
Alexander V. Aksenov Nicolai A. Aksenov Elena V. Aleksandrova Dmitrii A. Aksenov Igor Yu. Grishin Elena A. Sorokina Allison Wenger Michael Rubin 《Molecules (Basel, Switzerland)》2021,26(20)
The recently discovered [4+1]-spirocyclization of nitroalkenes to indoles provided a convenient new approach to 2-(1H-indol-2-yl)acetonitriles. However, this reaction was complicated by the formation of inert 3-(2-nitroethyl)-1H-indole byproducts. Herein, we offer a workaround this problem that allows for effective transformation of the unwanted byproducts into acetonitrile target molecules. 相似文献