中国化学快报

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First Enantioselective Synthesis of Daphneticin

Xin Feng REN, Kun PENG, Xiao Chuan CHEN, Xin Gang XIE, Ya Mu XIA, Xin Fu PAN

中国化学快报. 2003, 14(06): 551-554.

摘要 ( )

可视化

An enantioselective total synthesis ofchiral daphneticin is reported firstly.

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Regioselective Oxidation of Phenols to o-Quinones with Dess-Martin Periodinane(DMP)

Hui Bing LUO, Yu Yuan XIE

中国化学快报. 2003, 14(06): 555-556.

摘要 ( )

可视化

Regioselective oxidation of phenols to o-quinones with Dess-Martin periodinane isreported.

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The Reaction of Tanshinones with Amines

Lin Kun AN, Xian Zhang BU, Hai Qiang WU, Xin Dong GUO, Lin MA, Lian Quan GU

中国化学快报. 2003, 14(06): 557-560.

摘要 ( )

可视化

The reaction of cryptotanshinone and tanshinone ⅡA with several biogenic aminemetabolites involved in the pathogenic pathways of HE were investigated and eight 1,2,3,4-tetrahydrophenanthrene derivatives, 2-6 and 8-10, were obtained. The probable mechanism onreaction was discussed.

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Study on the Reaction of Benzimidazolium Salt with Amine Compounds

Yun Xia WANG, Lin JIA, Zhen SHI

中国化学快报. 2003, 14(06): 561-564.

摘要 ( )

可视化

The addition-hydrolysis reaction of benzimidazolium salt with some mono- andbifunctional amine nucleophiles is reported, and a novel method of biomimetic synthesis forformamides and heterocycle compounds is provided.

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Synthesis of 5-Aryl-1, 2-dihydro-1-pyrrolizinones

Hong YU, Fei WANG, Shou Fang ZHANG

中国化学快报. 2003, 14(06): 565-568.

摘要 ( )

可视化

In order to search for new potent anti-inflammatory and analgesic agents inpyrrolizinones, the title compounds were designed and synthesized. A series of the compoundswere prepared with two different synthetic schemes. Some of the compounds showed remarkableanti-inflammatory and/or analgesic activities on mice.

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Synthesis of 3-Biaryl-1-ferrocenyl-2-propene-1-ones

Qing Bao SONG, Shang Dong YANG, Tian Hua SHEN, Yong Qiang WANG, Yong Xiang MA, Xiao Li WU

中国化学快报. 2003, 14(06): 569-571.

摘要 ( )

可视化

The novel structures of organometallic compounds 3-biaryl-1-ferrocenyl-2-propene-1-ones 5 were synthesized for nonlinear optical chromophores by Suzuki cross-coupling reaction.Their structures were determined with elemental analyses, ¹H NMR spectra and ¹³C NMR spectra.

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Synthesis of 2, 6-(substituded) pyridine Derivatives Using Amide and Imine Groups

Mei Ying LI, Pei Zhi HU, Wan Ren ZHU, Kuo Xi XU

中国化学快报. 2003, 14(06): 572-574.

摘要 ( )

可视化

A new 'two-armed' acyclic diamide Ⅰ_a 2, 6-bis(1-ethanecarbozamido-2-amino)pyridine,and a new series of aromatic aldehyde schiff bases containing pyridine ring and amide bridge, Ⅱ_a-f,were prepared. The compounds were characterized by elemental analysis, IR, ¹HNMR and MS.The bioactivity half inhibitory concentration C_1/2is given.

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Photopromoted Carbonylation of Alkyl Halides Under Ambient Conditions

Yan SUN, Jing Mei YIN, Da Bin GAO, Guang Yun ZHOU, Ying Ping JIA

中国化学快报. 2003, 14(06): 575-578.

摘要 ( )

可视化

Photopromoted carbonylation of alkyl halides with carbon monoxide can be carried outunder ambient conditions with non-precious transition metal complexes (such as cobalt complexes) catalysts. Our preliminary work showed that alkyl halides can be transformed into alkene andalkane directly under irradiation, but the esters can not be transformed. It is assumed that thecarbonylation of alkyl halides may be proceeded in two ways.

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Synthesis of a New Ligand Containing 1, 7-Diaza-12-crown-4 and the Application in Asymmetric Cyclopropanation Reaction

Cheng Yun WANG, Zhi Cai SHANG, Jiang Hua MEI, Qing Sen YU

中国化学快报. 2003, 14(06): 579-580.

摘要 ( )

可视化

A new chiral multidenate ligand (S, S)-1,7-bis(4-benzyloxazolin-2-yl-methyl)-1,7-diaza- 12-crown-41 has been synthesized and used as ligand in the copper catalyzed asymmetriccyclopropanation of 1, 1-diphenylethylene.

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Design and Synthesis of New Arylsulfonamide and Arylamide Derivatives for the Platelet Aggression Inhibitor

Song Qing WANG, Xiu Jie LIU, Zhi Ming YI, Kang ZHAO

中国化学快报. 2003, 14(06): 581-584.

摘要 ( )

可视化

A series of arylsulfonamide and arylamide derivatives have been prepared from anisolein good yields. The structures of those compounds were confirmed by ¹H-NMR and MS analysis.Their activities against platelet aggregation were tested in vitro by using the Born test on rabbits.

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A New Disulfated Triterpene Glycoside from the Sea Cucumber Mensamaria intercedens Lampert

Zheng Rong ZOU, Yang Hua YI, Qiang Zhi XU, Hou Ming WU, Hou Wen LIN

中国化学快报. 2003, 14(06): 585-587.

摘要 ( )

可视化

A new disulfated triterpene glycoside named intercedenside B was isolated from the seacucumber Mensamaria intercedens Lampert. The structure was deduced from the spectral data.

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A New Cytotoxic Acetogenin from the Seeds of Annona squamosa

Hai Hui XIE, Xiao Yi WEI, Ji Dong WANG, Mei Fang LIU, Ren Zhou YANG

中国化学快报. 2003, 14(06): 588-590.

摘要 ( )

可视化

new Annonaceous acetogenin, squamostolide (1), was isolated from the seeds of Annona squamosa. Its structure was elucidated based on spectroscopic methods and comparisonwith known compounds. It is the first example of Annonaceous acetogenin with each of the twoends of the aliphatic chain bearing a γ-lactone. The new compound exhibited cytotoxic activity invitro against bel-7402 and CNE₂ human tumor cell lines.

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Two New Abietane Quinones from Isodon lophanthoides var. Micranthus

Ai Hua ZHAO, Sheng Hong LI, Yong Wei LI, Quan Bin HUAN, Qin Shi ZHAO, Zhong Wen LIN, Han Dong SUN

中国化学快报. 2003, 14(06): 591-593.

摘要 ( )

可视化

The structures of two new abietane quinones, named micranthins A and B, weredetermined to be 7α-methoxy-14, 16-epoxy-8, 13-abietadiene-11, 12-dione (1) and 16-acetoxy-6,7-dehydroroyleanone (2) respectively, which were isolated from Isodon lophanthoides var.micranthus.

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A New Cycloartane from Sphaerophysa salsula

Zhong Jun MA, Xian LI, Yang LU, Cheng WANG, Qi Tai ZHENG

中国化学快报. 2003, 14(06): 594-596.

摘要 ( )

可视化

A novel cycloartane, named sphaerophysone A, 9, 19-cycloart-7β, 24β, 25-triol-1-en-3-one, was isolated from the ethanol extract of Sphaerophysa salsula DC. The structure waselucidated on the basis of spectral evidences and confirmed by X-ray analysis, the stereochemistryof the compound was also defined by X-ray analysis.

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A Morphinane Alkaloid from Meconopsis quintuplinervia

Xiao Ya SHANG, Hai Sheng JIAO, Yong Chun YANG, Jian Gong SHI

中国化学快报. 2003, 14(06): 597-598.

摘要 ( )

可视化

A new morphinane alkaloid named as mecoquitupline was isolated from Meconopsis quintuplinervia Regel. Its structure was elucidated to be 6-methoxy-17-methyl-2,3-[methylenebis(oxy)]-morphinan-5-en-7-one by spectroscopic techniques.

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An On-line Galvanic Cell Generated Electrochemiluminescence and Flow Injection Determination of Calcium in Milk and Vegetable

Li Rong LUO, Jia Gen LÜ, Zhu Jun ZHANG

中国化学快报. 2003, 14(06): 599-602.

摘要 ( )

可视化

An on-line Ag/Al galvanic cell is investigated and employed to generateelectrochemiluminescence (ECL). The potential of the galvanic cell could be adjusted by varyingthe components of flow reagent. The cell performed perfect capability of supplying a stablepotential for ECL generation. Based on the weak ECL ofcalcein blue could be greatly sensitizedby the presence of calcium in alkaline solution, calcium contents in milk samples and in cabbagewere assayed and the results were compared with those from ICP-AES method.

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Separation of Ephedrines Using 1-Butyl-3-methylimidazolium-tetrafluoroborate Ionic Liquids as Eluent in High-performance Liquid Chromatography (HPLC)

Li Jun HE, Wen Zhu ZHANG, Bo WEN, Xia LIU, Sheng Xiang JIANG

中国化学快报. 2003, 14(06): 603-604.

摘要 ( )

可视化

A simple, effective HPLC method for separation of ephedrines was achieved by using1-butyl-3-methylimidazolium-tetrafluoroborate ionic liquid solution (0.1% v/v) as eluent at pH 3.0.The involved mechanism may be due to that the imidazolium cations can effectively shield thesilanol groups of alkylsilica surface, thereby decreasing band tailing and increasing the separationefficiency.

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Coordination Structure of Aluminum in Magnesium Aluminum Hydroxide Studied by ²⁷Al NMR

Shu Hua HAN, Wan Guo HOU, Wen Xiu DANG, Jun XU

中国化学快报. 2003, 14(06): 605-608.

摘要 ( )

可视化

The coordination structure of aluminum in magnesium aluminum hydroxide was studiedby ²⁷Al NMR. The result showed that tetrahedral aluminum (Al^Ⅳ) existed in magnesiumaluminum hydroxide, and the contents of Al^Ⅳ increased with the increase of the ratio of Al/Mg andwith the peptizing temperature. Al^Ⅳ originated from the so-called Al₁₃ polymer with the structureof one Al tetrahedron surrounded by twelve Al octahedrons.

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The Application of Polytetrafluoroethylene (PTFE) Fiber Grafted Acrylic Acid as a Cation Exchanger for Removing Cu²⁺

Zheng Pu ZHANG, Zhi Peng WANG, Bao Gui ZHANG, Yan Geng ZHANG

中国化学快报. 2003, 14(06): 609-610.

摘要 ( )

可视化

The polytetrafluoroethylene fiber grafted acrylic acid was used as a cation exchanger.The exchange capacity of the cation fiber is 3.06 mmol/g. The maximum Cu²⁺ adsorptioncapacity is 107.48 mg/g. It could be desorbed completely by 1 mol/L HCl.

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Separation of Peptides by Pressurized Capillary Electrochromatography

Kai ZHANG, Chao YAN, Zhi Chao ZHANG, Qin Sun WANG, Ru Yu GAO

中国化学快报. 2003, 14(06): 611-614.

摘要 ( )

可视化

A novel gradient pressurized capillary electrochromatography (pCEC) instrument wasdeveloped to separate peptides. Two gradient elution modes, hydrophobic and hydrophilicinteraction mode in pCEC, were performed on this instrument. Baseline separation of sixpeptides was obtained on two gradient modes with C18 column and strong cationic exchangecolumn respectively. The effects of mixer volume and total flow rate of pumps on resolutionwere also discussed.

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Highly Efficient, Green Oxidation of Alcohols Using Novel Heterogeneous Ruthenium Catalyst

Hong Bing JI, Yu QIAN

中国化学快报. 2003, 14(06): 615-618.

摘要 ( )

可视化

MnFe_1.4Ru_0.45Cu_0.15O₄ was an effective heterogeneous catalyst for the oxidation ofvarious types of alcohols to the corresponding carbonyl compounds using atmospheric pressure ofoxygen under mild conditions. Furthermore, this catalyst was also effective towards alcoholoxidation using water as solvent instead of toluene.

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Microcalorimetric Study on Tyrosine Oxidation Catalyzed by Tyrosinase

Jun YAO, Yi LIU, Tian Zhi WANG, Jian Ben LIU, Peng LIU, Zi Niu YU

中国化学快报. 2003, 14(06): 619-622.

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可视化

Through the method of initial heat release rate, the kinetic property of tyrosine oxidationcatalyzed by tyrosinase from Pseudomonas maltophilia was investigated using a LKB-2107 batchmicrocalorimeter. Tyrosine was catalyzed and oxidized into L-dopa, then into melanin catalyzed bytyrosinase. We found that the tyrosinase reaction obeyed the Michaelis-Menten kinetics, and at298.15K and pH 7.0, the initial exothermic rate (Ω₀) are in the range of0.1567~0.5704 mJ·s^-1, the maximum exothermic rate (Ω_max) are in 0.4152~0.8143mol·L^-1, and mean value of the Michaelisconstant (K_m) is 2.199±0.105×10⁴ mol·L^-1.

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The Performance of Rhodium Complex-diphosphine Systems in the Hydroformylation of 1-Dodecene

Xue Yuan HUANG, Rui Xiang LI, Hua CHEN, Xian Jun LI

中国化学快报. 2003, 14(06): 623-626.

摘要 ( )

可视化

The catalytic performances of four HRh(CO)(PPh₃)₃-diphosphine (BISBI, BDPX,BDNA and BINAP) systems in 1-dodecene hydroformylation were investigated and comparedwith HRh(CO)(PPh₃)₃-PPh₃system. The catalyst system HRh(CO)(PPh₃)₃- BISBI exhibited veryhigh regioselectivity for the formation of linear aldehyde.

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Dioxygen Affinities and Catalytic Oxidation Performance of Cobalt (Ⅱ) Complexes with N-Aryl Hydroxamic Acid

Chun Chun ZHANG, Wei ZENG, Jian Zhang LI, Sheng Ying QIN

中国化学快报. 2003, 14(06): 627-630.

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可视化

The oxygenation of cobalt (Ⅱ) hydroxamates (CoL₂) and its catalytic performance inoxidation of p-xylene to p-toluic acid (PTA) were examined. The effects of X and Y bonded tohydroxamate group on dioxygen affinities and catalytic oxidation performance were alsoinvestigated.

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Hydrogen Production from Methanol Using Corona Discharges

Xi Zhen LIU, Chang Jun LIU, Baldur ELIASSON

中国化学快报. 2003, 14(06): 631-633.

摘要 ( )

可视化

Hydrogen production at room temperature from liquid methanol has been conductedusing corona discharge. The content of water in methanol solution has a significant effect on thisproduction. When water concentration increases from 1.0% to 16.7%, the methanol conversionrate changes from 0.196 to 0.284 mol/h. An important finding in this investigation is theformation of ethylene glycol as a major by-product. The yield of ethylene glycol is ranged from0.0045 to 0.0075 mol/h based on the water content.

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First Binary Mixture Ionic Liquids Containing EMIMBr and IM

Li Yi DAI, Chun Yan HUA, Sheng Rong YE, Yong Kui SHAN, Ming Yuan HE

中国化学快报. 2003, 14(06): 634-636.

摘要 ( )

可视化

A new series of binary mixture ionic liquids comprising 1-ethyl-3-methylimidozaliumbromide (EMIMBr) and imidazole (IM) have been synthesized. The melting points of the ionicliquids vary with the different content of IM while they still keep satisfactory conductivity andviscosity. According to the analysis of its phase diagram, the eutectic point is about 16.5℃ withthe mass percentage of IM 29%.

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Cubic Mesoporous Aluminosilicate with Primary Structure Units of Zeolite Beta in the Pore Wall

Gong LI, Qiu Bin KAN, Tong Hao WU, Jia Hui HUANG

中国化学快报. 2003, 14(06): 637-640.

摘要 ( )

可视化

Mesoporous aluminosilicate with cubic ordered structure was synthesized by two-stepcrystallization, which showed stronger acid sites and more effective activity for catalytic alkylationof 2, 4-ditert-butylphenol with tert-butanol than conventional H-AlMCM-48 materials.

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Enhancement of Photocurrent Generation of a Novel Stilbazolium Dye Dimer in LB Monolayer Films

Fu You LI, Xiao Rong ZOU, Chun Hui HUANG

中国化学快报. 2003, 14(06): 641-644.

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可视化

A novel dye dimer, bis-{[1-(N-hexadecyl-4-pyridinium)-2-(4-N, N-dimethylamino-phenyl)] ethenyl}methane diiodide (C₁₆BP) was synthesized, and the photoelectrochemistry of thedye Langmuir-Blodgett monolayer modified ITO electrode was investigated. For comparison, thephotoelectrochemistry of the monomer (E)-N-hexadecyl-4-[2-(4-N, N-dimethylaminophenyl)ethenyl] pyridinium iodide (C₁₆P) was also measured. The results show that the photocurrentgeneration property of the dimer is enhanced. The photocurrent generation quantum yield is0.38% for C₁₆BP, while that for C₁₆P is 0.23%.

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Synthesis of Various Types of Silver Nanoparticles Used as Physical Developing Nuclei in Photographic Science

Jun Ping ZHANG, Li Qi SHENG, Ping CHEN

中国化学快报. 2003, 14(06): 645-648.

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可视化

Ag nanoparticles used as physical developing nuclei in photographic science wereprepared by reduction method. The as-formed Ag nanoparticle colloid was characterized byUV-Vis absorption spectrum, Atomic Force Microscopy(AFM) and Charge Coupled Device (CCD)technique. It is found that the source of Ag ions, the addition of surfactant and polymer, all havegreat influence on the size, topography and catalytic activity of Ag nanoparticles.

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The Photocatalyzed Reduction of Aqueous Sodium Carbonate Using Nano SrFeO₃

Qiu Hua YANG, Xi Xian FU

中国化学快报. 2003, 14(06): 649-652.

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可视化

Heterogenous photocatalyzed reduction of aqueous Na₂CO₃ has been carried out byusing nano SrFeO₃ semiconductor powders. Formic acid, formaldehyde and methyl alcoholwere identified as photoproducts, and were measured spectrophotometrically. The effect of thevariation of different parameters such as sodium carbonate concentration, amount of photocatalystand different light sources on the yield of photoproducts was also investigated. It shows thatnano SrFeO₃ has photocatalytic activity. Irradiation leads to the production of electrons in theconduction band of the SrFeO₃ semiconductor. It is likely that the photoproduced electronsreduce CO₃^2- initially to HCOO^-, and then to HCHO and CH₃OH.

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Synthesis and Surface Activity of Novel Triazole-based Cationic Gemini Surfactants

Ling Guang QIU, An Jian XIE, Yu Hua SHEN

中国化学快报. 2003, 14(06): 653-656.

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可视化

The synthesis and surfactant activities of two new cationic gemini surfactants containingtriazole compound as spacer were described. Their critical micelle concentrations (CMC), whichare 1.8×l0^-4 mol/L and 3.9×10^-4 mol/L respectively, are much lower than that of conventionalsurfactant cetyltrimethyl ammonium chloride (CTAC). In addition, compared with some geminisurfactants containing phenylene, xylylene and stilbenyl as spacer, this new kind of surfactants hasgood solubility in water at room temperature because of containing more hydrophilic groups oratoms in molecules.

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Two-photon Excited Fluorescence of Bithiophene Derivatives

Guang Ming XIA, Qi FANG, Xin Guang XU, Gui Bao XU, Wei WANG, Zhi Qiang LIU, Gui Lan SONG, Yong Jie WU

中国化学快报. 2003, 14(06): 657-660.

摘要 ( )

可视化

Two new bithiophene derivatives named as 5, 5'-bis(p-N,N-dimethylaminostyryl)-2, 2'-bithiophene (BMSBT), and 5, 5'-bis(p-N,N-diethylaminostyryl)-2, 2'-bithiophene (BESBT) havebeen synthesized. Both compounds can emit strong single-photon excited fluorescence (SPEF)and two-photon excited fluorescence (TPEF) with the emission peaks around ~560 nm and withthe lifetime of~lns.

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2003年, 第14卷, 第06期　刊出日期：2003-06-20

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2003年, 第14卷, 第06期 刊出日期：2003-06-20

2003年, 第14卷, 第06期　刊出日期：2003-06-20