共查询到20条相似文献,搜索用时 15 毫秒
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Xin Bo ZHOU Cui Fang LIN Song LI 《中国化学快报》2005,16(10):1301-1304
The synthesis of (S)-2-(3-arylacrylamido)-3-{4-[2-(5-methyl-2-phenyloxazol-4-yl)etho- xy]phenyl}propanoic acids is described. Their structures were confirmed by ^1H-NMR. 相似文献
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Hydrosilylation has been carried out between Si-H terminated polydimethylsiloxanes with narrow molecular weight distribution and protected 3-allyloxy-1,2-propanediol, and after subsequently alcoholyzed, α-{3-[(2,3-dihydroxy)propoxy]propyl}-ω-butyl-polydimethylsiloxanes with varying number of ((Si(CH3)2-O) unit were obtained. At each step, the produced compounds were carefully characterized. The results showed that each step was successfully carried out and target products were achieved. 相似文献
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In this study, 3-(4-{3-[3-(dimethylamino)phenoxy]propoxy}phenyl)propan-1-ol, 3-(4-{3-[3-(diethylamino)phenoxy]propoxy}phenyl)propan-1-ol and axially disubstituted silicon naphthalocyanines (SiNc) bearing electropolymerizable bis-[(4-{3-[3-(dimethylamino)phenoxy]propoxy}phenyl)propanoxy] and bis-[(4-{3-[3-(diethylamino)phenoxy]propoxy}phenyl)propanoxy] units were synthesized for the first time. Aggregation behavior of SiNcs was examined in different solvents and concentrations in DMSO. In all solvents and concentrations, SiNcs were non-aggregated. Also, electrochemical studies of SiNcs were investigated by cyclic and square wave voltammetry. While SiNcs gave only naphthalocyanine-based reduction process during the cathodic potential scans, they were electropolymerized on the working electrode during the anodic potential scan because of the oxidative electropolymerization of (4-{3-[3-(dimethylamino)phenoxy]propoxy}phenyl)propanoxy and (4-{3-[3-(diethylamino)phenoxy]propoxy}phenyl)propanoxy groups on the substituents of the complexes. 相似文献
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Yan Li HAO Ying Jie DENG Yan CHEN You Cai HU 《中国化学快报》2005,16(8):1004-1006
Novel hexadecyl 3- { 4-[2-hydroxy-3(isopropylamino)propoxy]phenyl }propionate (HPP)was synthesized and its effect on delivery of liposomes into cultured cardiomyocytes was examined. The structure of HPP was characterized by IH NMR, 1R and MS. The amount of cardiomyocytes uptake of HPP-liposome was 3.9-fold higher than plain-liposome, and the increase was 6.2-fold when hypoxia happens. It indicated that HPP was a potential ligand for liposome targeting to ischemic myocardium. 相似文献
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A synthesis is reported for N1-mono- and N1,N3-disubstituted uracil derivatives containing a terminal carbon-carbon double bond in the side-chain. Alkylation of vinyl 2-chloroethyl ether by uracil potassium salts leads to a mixture of 1-[2-(vinyloxy)ethyl] and 1,3-di[2-(vinyloxy)ethyl] derivatives while treatment of 2,4-bis(trimethylsilyloxy)pyrimidines by vinyl 2-chloroethyl ether leads exclusively to N1-monosubstituted products. Alkylation of cytosine by this chloroether gave 1-[2-(vinyloxy)ethyl]cytosine. The synthesis of 1-[2-(allyloxy)ethyl]uracil derivatives was carried out by treatment of uracil potassium salts by 1-(allyloxy)-2-(p-toluenesulfonyloxy)ethane.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 393–397, March, 1993. 相似文献
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《Journal of Coordination Chemistry》2012,65(8):1411-1417
The synthesis of octakis(4,5-bis{2-[2-(1-naphthyloxy)ethoxy]ethoxy}) metal-free (4) and metallophthalocyanines (5–8) were carried out by the cyclotetramerization of a 4,5-bis{2-[2-(1-naphthyloxy)ethoxy]ethoxy}phthalonitrile (3). Newly substituted octakisphthalocyanines showed enhanced solubility in organic solvents. The new compounds were characterized by IR, 1H-NMR, 13C-NMR, UV-Vis, and MS spectral data. 相似文献
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The crystal, molecular structure of {1'2-bis[2-(o-hydroxyphenoxy)ethoxy]ethane}bis(iso-thiocyanato)calcium was studied by single crystal X-ray diffraction. The compound is a host-guest complex.In the molecule of this complex, the podand is wrapped around the Ca2
+ cation (CN 8), which is coordi- nated with all the six oxygen atoms of the podand and with two nitrogen atoms of two SCN- ligands. The geometric parameters and crystal packing of the complex were determined. The molecules in the crystal are linked by O-H···S hydrogen bonds to form three-dimensional layers. 相似文献
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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
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A series of six new Schiff bases has been prepared by reacting aniline and 4-R-substituted anilines (R=CH3, OCH3, Br, Cl, NO2) with 3-hydroxy-4-pyridinecarboxaldehyde. The 1H, 13C, 15N and 17O NMR data of these compounds are used to discuss the tautomerism. 15N NMR and 17O NMR chemical shifts established the tautomer existing in solution as the hydroxy/imino. 13C CPMAS NMR confirms that the same tautomer is found in the solid state. The stabilities of the tautomeric forms have been approached using density functional calculations (B3LYP/6-31G**) in the gas phase. In all cases the neutral hydroxy/imino with E configuration is more stable than the oxo/enamino form (by ∼22 kJ mol−1) and significantly more stable than the betaine (by ∼75 kJ mol−1). 相似文献
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B. F. Kukharev V. K. Stankevich N. A. Belogorlova G. R. Klimenko 《Russian Journal of Applied Chemistry》2006,79(6):1038-1039
Butyl vinyl ether-1-amino-3-[2-(vinyloxy)ethoxy]-2-propanol cooligomer was prepared and studied as a stabilizer of mazut-coal blended fuel. 相似文献
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The synthesis of novel metal-free and metallophthalocyanines [Ni(II), Zn(II), Co(II), Cu(II)] were prepared by cyclotetramerization of a novel 4-{2-[2-(1-naphthyloxy)ethoxy]ethoxy}phthalonitrile and the corresponding metal salts (NiCl2, Zn(CH3COO)2, CoCl2 and CuCl2). The structures of the target compounds were confirmed using elemental analysis, IR, 1H NMR, 13C NMR, UV–Vis and MS spectral data. Voltammetric and in situ spectroelectrochemical measurements show that while cobalt phthalocyanine complex gives both metal-based and ring-based redox processes, metal-free, and zinc phthalocyanines show only ring-based reduction and oxidation processes. All complexes decomposed and coated on the electrode as nonconductive film at positive potential window of the electrolyte. An in situ electrocolorimetric method has been applied to investigate color of the electro-generated anionic and cationic forms of the complexes. 相似文献
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Coupling of trimethylsilyl derivative of methyl 1,2,4-triazole-3-carboxylate with 2--(chloromethyl)-1,3-di--benzyl glycerol, followed by amination and removal of the protecting groups afforded 1-[(2-hydroxy-1-(hydroxymethyl)ethoxy)methyl]-1,2,4-triazole 3- and 5-carboxamides, 1a and 1b, respectively. 相似文献