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在以CuCl和四甲基乙二胺(TMEDA)作为催化剂和邻二氯苯作溶剂条件下,以二-(4-乙炔苯基)-4-辛氧基苯胺(M1)和3, 6-双(乙炔基)-N-辛基咔唑(M2)作为单体,通过Glaser-Hay氧化偶联反应合成了含有咔唑和三苯胺结构单元的聚芳烃二乙炔共轭聚合物.采用红外光谱、核磁共振谱、热失重分析、紫外吸收光谱和荧光光谱等方法对聚合物进行结构表征与性能测试.所得到的聚合物都溶于普通的有机溶剂(如四氢呋喃、二氯甲烷、氯仿、甲苯等).结果表明,聚合物具有优异的热稳定性,热失重5 %时,分解温度在400℃以上;在光激发的条件下,聚合物在二氯甲烷溶液中发射蓝光. 相似文献
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A. V. Nemtarev A. S. Aniskin Zh. Yu. Makarova V. F. Mironov 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1-3):200-204
Abstract Bis(benzo[e]-1,2-oxaphosphinin-2-oxid-4(7)-yl)butane (-benzene) derivatives were synthesized for the first time both on the basis of reactions of diacetylene with P,P, P-trihalobenzo-1,3,2-dioxaphopholes and on the basis of reactions of bis(P,P,P-trihalobenzo-1,3,2-dioxaphosphol-5-yl)bytane (-benzene) with phenylacetylene. 相似文献
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Abhijit Sarkar Shuji Okada Hachiro Nakanishi Hiro Matsuda 《Helvetica chimica acta》1999,82(1):138-141
A simple and convenient way for the preparation of symmetrical diarylbutadiynes 5 with improved yields is reported (Scheme 2). The reaction time is drastically reduced using this method compared to previously reported procedures. 相似文献
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Shigeru Sasaki Yoshihiro Tanabe Masaaki Yoshifuji 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1)
Abstract To construct phosphorus-functional group substituted Ir-electron systems, synthesis of acetylenes possessing phosphorus substituents and the reactions with CpCo(CO)2 were investigated. 相似文献
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During the past five years, over 600 papers have been published on research work carried out with diacetylenes. Far fewer papers can be found on diacetylene mesophase studies, and these are reviewed in this paper. Some new findings by the authors are also presented. 相似文献
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Isao Yamaguchi Hideo Higashi Shunsuke Kimura Moriyuki Sato 《Helvetica chimica acta》2010,93(5):819-828
Diacetylenes (DAs) having a dipolar D‐π‐A structure (D=donor: amino group; π=π‐conjugation core; A=acceptor: pyridinium (Py) and bipyridinium (BPy) groups), i.e., 4 (APBPyDA) and 5 (APPyPyDA), or an A‐π‐A structure, i.e., 7 (DBPyDA) and 8 (PyDA(Cl)), were obtained by 1 : 1 and 1 : 2 reactions of 4,4′‐(buta‐1,3‐diyne‐1,4‐diyl)bis[benzenamine] (APDA; 3 ) with 1‐(2,4‐dinitrophenyl)‐1′‐hexyl‐4,4′‐bipyridinium bromide chloride (1 : 1 : 1) ( 1 ), 1‐(2,4‐dinitrophenyl)‐4‐(pyridin‐4‐yl)pyridinium chloride ( 2 ), or 1‐(2,4‐dinitrophenyl)pyridinium chloride ( 6 ) (Schemes 1 and 2). The anion‐exchange reactions of 8 with NaI and Li(TCNQ) (TCNQ?=2,2′‐(cyclohexa‐2,5‐diene‐1,4‐diylidene)bis[propanedinitrile] radical ion (1?)) yielded the corresponding I? and TCNQ? salts 9 (PyDA(I)) and 10 (PyDA(TCNQ)). Compounds 10 and 4 exhibited a UV/VIS absorption due to a charge transfer between the TCNQ? and the pyridinium groups and a strong solute–solvent interaction of a dipolar solute molecule in the polar environment, respectively. Compounds 8 – 10 exhibited photoluminescence in solution, whereas 4 and 7 did not because of the presence of the 4,4′‐bipyridinium quenching groups. Differential‐scanning‐calorimetry (DSC) measurements suggested that the DAs obtained in this study can be converted into poly(diacetylenes) by thermal polymerization. 相似文献
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Vladimir A. Potapov Svetlana V. Amosova Boris V. Petrov 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1):587-590
Reactions of dicyanodiselenide, selenenyl chlorides and bromides with acetylenes and some further transformations of obtained products have been studied. 相似文献
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The synthesis of α-bisethynyl compounds, IV and VIII, and cyclic conjugated diacetylenes, V and IX, was performed according to Scheme 1. Bisethynyl compounds, IV and VIII, were prepared in good yields by ethynylation of bromides II, III and VII in N-ethyl-2-pyrrolidone with liquied ammonia solution of sodium acetylide at atmospheric pressure. The intramolecular cyclization of IV was carried out by the Eglinton's oxidative coupling1with high-dilution technique under nitrogen atmosphere. 相似文献
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A number of novel, conjugated, unsymmetrically disubstituted diphenyl-diacetylenes have been synthesized and polymerized in the liquid-crystalline phase to yield liquid-crystalline polymers. The efficiency of second harmonic generation is reported for both monomers and polymers. 相似文献
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Russian Journal of Organic Chemistry - Aryl acetylenes bearing electron-withdrawing groups have been found that can add to azulenes and yield 1,2-substituted heptalenes. Theoretical studies of the... 相似文献
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Aryl vinyl ketones are prepared by the reaction of aryl iodides and terminal acetylenes in the presence of a catalytic amount of PdCl2(PPh3)2, Cp2TiCl2 and a stoichiometric amount of Zn-Cu under an atmospheric pressure of carbon monoxide. 相似文献
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The He(Iα) photoelectron spectra and the ionization energies of symmetrically substituted di-n-alkyl-diacetylenes R-(C?C)2-R (with R ? CH3, C2H5, n-C3H7, n-C4H9) are presented. The effect of the alkyl substitutents is that the two acetylenic ionization energies, Iv,1 and Iv,2, shift by the same amount, i.e. their difference Iv,2 – Iv,1 remains constant (2.45 ± 0.05 eV). Between 12.5 eV and 17 eV the band system in the photoelectron spectrum of R-(C?C)2-R is superimposable with that in the spectrum of the corresponding alkane, RH, with the exception of a uniformly small shift of all the bands to higher ionization energy. 相似文献
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Reaction of 1,3-dimetallated acetylenes KC°C-CH(K)R (R=alkyl, O-alkyl, S-alkyl, aryl, N(alkyl)2) with non-enolizable thiocarbonyl compounds XCSSCH3 (X=aryl, heteroaryl, t-Bu, CH3O, t-BuO, CH3S, N(alkyl)2) gives 2,3-disub-stituted thiophenes (6) having X in the 2-position and R in the 3-position. 相似文献
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