The American Chemical Society
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Chemistry an Asian Journal
Asian Journal of Organic Chemistry
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Mannich Bases Derived from 3-Pipecoline, 4-Pipecoline and 2,6-Dimethylmorpholine
Frank Cheng Sun
VOL.9 NO.4 (1962/12)

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PDF file Download: 99-1-S-002.pdf
李映瑩 蔡宗霖 謝達斌
      在許多金屬材料中,黃金是最早開始被廣泛研究的膠體金屬。由於製備方法簡單與生物相容性 高等許多優點,金奈米粒子被視為最容易應用於生物體的材質,因此許多有關金奈米粒子結合生物分 子的研究也紛紛出現,其中在生物晶片與感測器的應用上更是頻繁,依其本身具有之特殊光學性質、 結構上及官能化後可與生物分子相容之優點,使金奈米粒子於生物醫學上之研究與發展逐年增加。本 文主要分成三大部份來探討生物醫學上的應用:未修飾之金奈米粒子、結合DNA 及蛋白質之金奈米 粒子。我們預期金奈米粒子在生物檢測與臨床治療的領域上,會是一個很好的生物標靶材料。
VOL.68 No.1

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PDF file Download: P327-339.pdf
Vol.67 No.4

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PDF file Download: P341-351.pdf
vol.67 No.4

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PDF file Download: P361-367.pdf
vol.67 No.4

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PDF file Download: P395-404.pdf
vol.67 No.4

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PDF file Download: JCCS-V59-1-107-113.pdf
Solid-phase Extraction Coupled Simple On-line Derivatization Gas Chromatography  Tandem Mass Spectrometry for the Determination of Benzophenone-type UV Filters in Aqueous Samples
Yu-Chih Ho and Wang-Hsien Ding*
      An efficient and reliable HLB-SPE followed by on-line derivatization GC-MS/MS was developed for the determination of three benzophenone-type UV filters in water samples. This method provides good precision, a wide range of linearity, and sub-ng/L level detection limits. On-line derivatization appears to be a good alternative derivatization method for the determination of organics containing –OH groups because it is a rapid, effective, and eco-friendly.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-114-121.pdf
New Application of Chemically Modified Multiwalled Carbon Nanotubes with Thiosemicarbazide as a Sorbent for Separation and Preconcentration of Trace Amounts of Co(II), Cd(II), Cu(II), and Zn(II) in Environmental and Biological Samples Prior to Determination by Flame Atomic Absorption Spectrometry
Hossein Tavallali,* Dawood Abdardideh, Mehdi Aalaei and Saeed Zahmatkesh
      The present article reports the application of Thiosemicarbazide-modified multiwalled carbon nanotubes (MWCNTs-TSC) as a new and selective solid sorbent for the preconcentration of Co(II), Cd(II), Cu(II) and Zn(II) ions in aqueous solution prior to determination by flame atomic absorption spectrometry. The proposed method was successfully applied for extraction and determination of the analytes in water, soil, and blood samples.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-122-131.pdf
Development of Polymeric Resin Ion-exchanger Based Chloride Ion-selective Electrode for Monitoring Chloride Ion in Environmental Water
Cheanyeh Cheng,* Zhu-Ming Huang, Wen-Yaw Chung, Dorota G. Pijanowska and Marek Dawgul
      A chloride ion-selective electrode (ISE) membrane was developed by using a polymeric ion-exchanger resin (trimethyl ethenyl quaternary ammonium chloride polystyrene divinylbenzene, TMEQAC PSDVB), the ionophore ({μ-[4,5-Dimethyl-3,6-bis(dodecyloxy)-1,2-phenylene]}bis(mercury chloride), ETH9033), the plasticizer (bis(2-ethylhexyl) sebacate, DOS), and the membrane substrate (polyvinylchloride, PVC). The chloride ion-selective membrane is placed at the tip of the electrode which has been used consecutively 72 days.
VOL.59 NO.1 (2012/1)

PDF file Download: JCCS-V59-1-18-27.pdf
Multi-Dimensional Cobalt(II) and Nickel(II) Coordination Polymers
Shih-Chen Hsu, Pei-Shiuan Chiang, Hsin-Kuan Liu, Sheng-Han Lo and Chia-Her Lin*
      A series of five new cobalt and nickel coordination polymers with multidimensional 3D network, 2D bilayer, 2D sheet, and 1D chain have been synthesized through hydrothermal reactions with mixed organic ligands. The binding forces from H-bonds and π–π stacking further cross-link the 1D and 2D plans into the higher dimensional 2D layers and 3D networks.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-28-31.pdf
Synthesis, Characterization and Oxide Ionic Conductivity of Binary β-(Bi2O3)1-x(Lu2O3)x System
Nilgun Ozpozan Kalaycioglu and Esra Çlrçlr*
      The electrical conductivity of β-Bi2O3 increased with increasing temperature. It is showed that in our samples the oxygen lattice points were not completely occupied with oxygen ions. The electrical conductivity increased with increasing temperature up to ~649 °C and than increased sharply up to about 677 °C. The reason for the sharp increase in conductivity was the phase transition.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-32-39.pdf
Kinetics of Malachite Green Fading in Water-ethanol-1-propanol Ternary Mixtures
Babak Samiey* and Mahshid Zafari
      This reaction was studied under pseudo-first-order conditions at 283-303 K. It was observed that the reaction rate constant increases in the presence of different weight percentages of ethanol and 1-propanol. The fundamental rate constants of MG+ fading in these solutions were obtained by SESMORTAC model.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-40-45.pdf
Cyclic Voltammetry of Ion Transfer for Phenylpropanolamine Hydrochloride at Water|Nitrobenzene Interface
Irdhawati Irdhawati,* Hirosuke Tatsumi, Indra Noviandri, Buchari Buchari and Slamet Ibrahim
      (This study investigated the ion transfer of phenylpropanolamine hydrochloride at the interface between water and nitrobenzene phases through dialysis membrane at temperature 25 + 1 oC (pH 6.98). The half-wave potential and peak separation were determined from the cyclic voltammogram The result showed a linear relationship between square root of scan rate and peak current. Randles-Sevcik equation was used for calculation the diffusion coefficient.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-46-50.pdf
Comparative Study of Fatty Acid Components in Oils of Different Olive Varieties Grown in Different Regions of Pakistan by Gas Chromatography-Mass Spectrometry
Inayat ur Rahman, Muhammad Nasimullah Qureshi* and Shakeel Ahmad
      The fatty acids profiles of olive oils from two consecutive crops (2008 and 2009) of three different varieties were developed employing GC-MS and then compared. Purpose of the study is to evaluate the olive oil constituents in Olive cultivated in different regions in order to determine the quality of olive oil and to ascertain the suitability of area for best quality products.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-51-59.pdf
Rapid Sample Pretreatment, Identification and Determination of Active Constitutents in Water-soluble Radix isatidis Extract via MAE, ESI-MS and RODWs-HPLC
Wei Zhou, Xiao-Yan Zhang, Yan-Ping Lva and Geng-Li Duan*
      This work provided a general model of MAE, ESI-MSn and RODWs-HPLC to study complex materials. RODWs-HPLC as a novel, accurate and sensitive chromatographic analysis had first been reported here, it can maximally take advantage of the respective best sensitivity of compounds under UV, which can solve related problems well because of low sensitivity of traditional HPLC.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-60-65.pdf
Kinetics and Protein-Inhibitor Docking Studies of Enantiomers of exo-2-Norbornyl-N-n-butylcarbamates as Pseudomonas Lipase Inhibitors to Probe the Enantioselectivity of the Enzyme
Yu-Fang Shen and Gialih Lin*
      The Pseudomonas species lipase inhibition shows enantioselectivity for R-enantiomer over S-enantiomer of exo-2-norbornyl- N-n-butylcarbamates. Protein-ligand interaction studies on both enantiomers of exo-2-norbornyl-N-n-butylcarbamate as inhibitors of Pseudomonas species lipase using AutoDock suggest that R-enantiomer (light blue) binds more tightly into the active site of the enzyme than S-enantiomer (violet).
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-66-71.pdf
An Efficient Microwave Assisted Eco-friendly Synthesis of 6-Chloro-3-(3-arylacryloyl)-2-methyl-4-phenylquinolines and their Conversion to 6-Chloro-3-(1-phenyl-5-aryl-4,5-dihydro-1H-pyrazol- 3-yl)-2-methyl-4-phenylquinolines
S. Sarveswari and V. Vijayakumar
      An eco-friendly basic alumina catalyzed protocol for the synthesis of some new quinolinyl chalcones has been developed by microwave assisted methods which in turn are converted to pyrazoline derivatives.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-72-80.pdf
Pyrazolones as Building Blocks in Heterocyclic Synthesis: Synthesis of New Pyrazolopyran, Pyrazolopyridazine and Pyrazole Derivatives of Expected Antifungicidal Activity
Mahmoud. M. M. Ramiz,* Ibrahim. S. Abdel Hafiz, Mohamed. A. M. Abdel Reheim and Hatem M. Gaber
      A series of new pyrazolone and pyrazole derivatives with expected antifungicidal activity have been prepared through the reactions 3–phenyl–1–H–pyrazol–5(4H)–one (3) and 4–(dimethylaminomethylene)–3–phenyl–1H–pyrazol–5(4H)–one (5) with a variety of electrophilic reagents and nucleophilic reagents.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-81-86.pdf
Aromatic Heterocycles Used as Terminal Groups of Calamitic Liquid Crystals
Chih-Yin Liu, Chin-Hsu Huang, Pao-Swu Cheng* and Wen-Liang Tsai
      Three aromatic heterocycles such as 2-, 3-, and 4-pyridinemethanol were used as terminal groups of liquid crystals. All the compounds 1-21 prepared possess different smectic phases including tilted SmC phase. Some of them with a terminal 4-pyridyl ring exhibit an additional N phase. The temperature range of SmA and SmC phase is up to 94˚C and 46˚C, respectively.
VOL.59 NO.1 (2012/1)

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PDF file Download: JCCS-V59-1-87-97.pdf
Thiobencarb Degradation by TiO2 Photocatalysis: Parameter and Reaction Pathway Investigations
Hsiao-Fang Lai, Chiing-Chang Chen, Ren-Jang Wu and Chung-Shin Lu*
      Photodegradation using TiO2 as a catalyst is an efficient method of degrading thiobencarb (TBC). Seven intermediates are detected by the solid-phase microextraction and gas chromatography/mass spectrometry technique, giving insight into the early steps of the degradation process. Results suggest that possible transformation pathways may include hydroxylation, dealkylation and C–S bond cleavage processes.
VOL.59 NO.1 (2012/1)


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