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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 22, Number 4
BKCSDE 22(4)
April 20, 2001 

 

257  

Static Dielectric Constant and Relaxation Time for the Binary Mixture of Water, Ethanol, N,N-Dimethylformamide, Dimethylsulphoxide, and N,N-Dimethylacetamide with 2-Methoxyethanol
Ajay Chaudhari, N. M. More, S. C. Mehrotra
Keywords: Dielectric relaxation, Time domain reflectometry, Kirkwood factor, Excess parameters.

Abstract | Full Text: PDF


337  

Frit-Inlet Asymmetrical Flow Field-Flow Fractionation (FI-AFlFFF): A Stopless Separation Technique for Macromolecules and Nanoparticles
Myeong Hee Moon
Keywords: Flow field-flow fractionation, Frit-inlet asymmetrical channel, Nanoparticle separation.

Abstract | Full Text: PDF


349  

A Convenient Synthesis of 2-Methylenealkanoates and Alkanenitriles from the Acetates of the Baylis-Hillman Adducts
Yang Jin Im, Jeong Mi Kim, Ji Hyun Mun, Jae Nyoung Kim
Keywords: 2-Methylenealkanoates, Baylis-Hillman adducts, Sodium borohydride.

Abstract | Full Text: PDF


351  

Facile Synthesis of Phosphonium Salts Containing Carboxylic Acid Functional Group
Jae Nyoung Kim, Ka Young Lee, Hyoung Shik Kim, Yang Jin Im
Keywords: Phosphonium salts, Wittig reaction, Triphenylphosphine, Lactones.

Abstract | Full Text: PDF


353  

A New Method for the Synthesis of (E) and (Z)-Trifluoromethylated 1,2-Diphenylethene Derivatives
In Howa Jeong, Young Sam Park, Sang Tae Oh, Bum Tae Kim
Keywords: b-Methyl- b-phenyl- a-(trifluoromethyl)vinyltin, Cross-coupling, Palladium, Trifluoromethylated, 1,2-Diphenylethene.

Abstract | Full Text: PDF


355  

Synthesis of Singly and Doubly Spin-labeled Maltoses and Their EPR Spectra
Injae Shin, Yongsung Cho, Hyuk-jun Jung, Sanghyuk Lee
Keywords: Carbohydrates, EPR, Maltose, Carbohydrate-protein interaction.

Abstract | Full Text: PDF


362  

The Effects of Metallothionein on the Activity of Enzymes Involved in Removal of Reactive Oxygen Species
Moonjoo Koh, Hee-Joung Kim
Keywords: Metallothionein, SOD, Catalase, Reactive oxygen.

Abstract | Full Text: PDF


367  

7 Li-NMR and Thermal Analysis for Lithium Inserted into Artificial Carbon Material
Won-Chun Oh
Keywords: Lithium, Artificial carbon, Intercalation, XRD, DSC, 7Li-NMR.

Abstract | Full Text: PDF


372  

Unusual Cytotoxic Phenethylamides from Xenorhabdus nematophilus
Seunguk Paik, Young Hwan Park, Seong Il Suh, Hyun Su Kim, In Sun Lee, Myung Kwang Park, Chun Soo Lee, Sun Ho Park
Keywords: Xenorhabdus nematophilus, Phenethylamides, Xenorhabdins.

Abstract | Full Text: PDF


375  

Selective Dehalogenative Homocoupling of Haloarylsulfonates by the Use of Palladium Catalyst
Tae-Soo Lee, Jeong Ho An, Jinhwan Kim, Jin-Young Bae
Keywords: Palladium catalyst, Nickel catalyst, Haloarylsulfonate, Homocoupling.

Abstract | Full Text: PDF


379  

Synthesis, Crystal Structure and Spectroscopic Characterization of a Copper(II) Complex Coordinated by 2,2'-Dipyridylstearylamine
Yung Hee Oh, Ji Young Kim, Young Ja Park
Keywords: Copper, Stearyl, Dipyridylamine, Crystal structure.

Abstract | Full Text: PDF


383  

Nucleophilic Substitution Reactions of Thiophenyl Dimethylacetates and Trimethylacetates with Benzylamines in Acetonitrile
Hyuck Keun Oh, Chi Yeul Park, Jae Myon Lee, Ikchoon Lee
Keywords: Aminolysis, Kinetics and mechanism, Acyl transfer reaction.

Abstract | Full Text: PDF


388  

Quantitative Structure-Activity Relationship (QSAR) Study of New Fluorovinyloxyacetamides
Doo Ho Cho, Sung Kwang Lee, Bum Tae Kim, Kyoung Tai No
Keywords: QSAR, Genetic algorithm (GA), Fluorovinyloxyacetamides

Abstract | Full Text: PDF


395  

Theoretical Studies on the Protonation Equilibria of Benzoyl Derivatives
Wang Ki Kim, Yong Bin Kim, Chang Kon Kim, Bon-Su Lee
Keywords: Protonation equilibria, Benzoyl derivatives, Ortho-methyl substituent, B3LYP/6-31+G*, NRT analysis.

Abstract | Full Text: PDF


401  

Preparation and Application of a New HPLC Chiral Stationary Phase Derived from 2-Amino-1-indanol
Myung Ho Hyun, Young Soo Jang, Hye Jung Min, Do Hun Kim, Bong Ho Um
Keywords: Chiral stationary phase, Enantiomer separation, Liquid chromatography, 2-Amino-1-indanol.

Abstract | Full Text: PDF


405  

Polymeric Membrane Sodium Ion-Selective Electrodes Based on Calix[4]arene Triesters
Yoon Duck Kim, Haesang Jeong, Sung Ok Kang, Kye Chun Nam, Seungwon Jeon
Keywords: Calix[4]arene, Calix[4]quinone, PVC membrane electrode, Ion selective electrode, Sodium ion.

Abstract | Full Text: PDF


409  

Separation of Positional Isomers on a Calix[4]arene-methylsiloxane Polymer as Stationary Phase in Capillary GC
Jung Kee Suh, In Whan Kim, Seung Hyun Chang, Byoung Eog Kim, Jae Wook Ryu, Jung Hag Park
Keywords: Positional isomers separation, Calix[4]arene-methylsiloxane polymer, Stationary phase, Capillary GC.

Abstract | Full Text: PDF


413  

Formation and Characterization of Sulfur-ligated Iron(III) Porphyrin Complexes: Correlation of Coordination and Magnetic Behavior
Byungho Song, Junghee Kim, Chulhee Han, Myungnyu Kim
Keywords: Sulfur-ligated, High-spin, Low-spin, Porphyrin.

Abstract | Full Text: PDF


417  

Enzyme-Linked Competitive Binding Assays for Digoxin
Moon Hee Choi, Moon Hwan Kim, Ho Choll Cho, Min Sun Kim,Eun Ah Lee, Insook Rhee Paeng, Geun Sig Cha
Keywords: Enzyme immunoassays, Digoxin assay.

Abstract | Full Text: PDF


421  

A Convenient Synthesis of N-Methoxy-N-methylamides from Carboxylic Acids Using S,S-Di(2-pyridyl) Dithiocarbonate
Jae In Lee, Hyun Park
Keywords: N-Methoxy-N-methylamide, S,S-Di(2-pyridyl) dithiocarbonate, Bis(trichloromethyl)carbonate, N,O-Dimethylhydroxylamine hydrochloride.

Abstract | Full Text: PDF


424  

Preparation of Epoxy Resins Containing Ether Ether Ketone Unit and Their Thermal Properties
Kun-Soo Lee, Young-Chul Lee, Bong-Gyoo Cho, Myoung-Seon Gong

Abstract | Full Text: PDF


427  

Enzyme-Catalyzed Enantioselective Hydrolysis of Diacetylated (±)-1-(2',3'-Dideoxy-3'-fluoroapio- β-furanosyl) Cytosine
Minsoo Song, Yonghyun Ahn
Keywords: Nucleoside, Lipase, Chiral resolution.

Abstract | Full Text: PDF


429  

Carbon-13 Two-Dimensional INADEQUATE Experiment of Coprostane
Sueg-Geun Lee
Keywords: Carbon-13 chemical shift, Coprostane, Cholestane, 2D-INADEQUATE.

Abstract | Full Text: PDF


432  

Improving the Regioselectivity in the Cyclic Iminocarbonate Rearrangement: Enantioselective Synthesis of the Paclitaxel Side Chain
Gae Y. Cho, Kyung Mi An, Soo Y. Ko
Keywords: Cyclic iminocarbonate rearrangement, Enantioselective synthesis, Paclitaxel side chain.

Abstract | Full Text: PDF