中国化学快报

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Bischler-Napieralski Reaction of 2-(3, 4-Dimethoxy-2-nitrophenyl)-N-[2-(3, 4-dimethoxyphenyl) ethyl]-N-[(S)-1-phenylethyl] acetamide Accompanied by Elimination of Chiral Auxiliary

Hong Min MA, Zhan Zhu LIU, Shi Zhi CHEN

中国化学快报. 2004, 15(03): 253-256.

摘要 ( )

可视化

Unexpected dealkylation of Bischler-Napieralski cyclization of 2-(3,4-dimethoxy-2-nitro-phenyl)-N-[2-(3,4-dimethoxyphenyl) ethyl]-N-[(S)-1-phenyl-ethyl] acetamide 3 was reported. The electronic effect of the substituent at 2-position of C ring was also discussed.

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Stereoselective Synthesis of (Z)-α-Bromovinylstannanes and (E)-α-Iodovinylstannanes via Hydrozirconation of Alkynylstannanes

Ming Zhong CAI, Hong De YE, Hong ZHAO, Cai Sheng SONG

中国化学快报. 2004, 15(03): 257-260.

摘要 ( )

可视化

Alkynylstannanes 1 react with Cp₂Zr(H)Cl (Cp=η⁵-C₅H₅) giving (Z)-α-stannylvinyl-zirconium complexes 2, which are trapped with NBS or iodine in THF at 0℃ to stereoselectively afford (Z)-α-bromovinylstannanes and (E)-β-iodovinylstannanes 3, respectively.

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Synthesis and Bioactivity of Novel Aminomethyl-2-(1, 2, 4-triazol)-4, 4-dimethyl-3-pentanone (ol)

Shuo Wen WANG, Bo Jie SHI, Yu Chang LI, Qing Min WANG, Run Qiu HUANG

中国化学快报. 2004, 15(03): 261-264.

摘要 ( )

可视化

3, 3-Dimethyl-1-(1, 2, 4-triazol)-2-butanone was treated with aqueous formaldehyde to give an additional product, and subsequent elimination by acetic anhydride yielded 4, 4-dimethyl-2-(1, 2, 4-triazol)-1-penten-3-one. Further addition with substituted amines provided a series of (1, 2, 4-triazol)-4, 4-dimethyl-3-pentanone, which were then reduced by KBH₄ to obtain a series of (1, 2, 4-triazol)-4, 4-dimethyl-3-pentanol. Their structures were confirmed by ¹HNMR and elemental analysis. The results of bioassay showed that the title products possess good fungicidal activities.

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Toward Total Synthesis of Yohimbine and Reserpine Alkaloids; Part 1. An Improved Synthesis of cis-5, 8-Dihydroxy-1, 4, 5, 8, 9,10-hexahydronaphthalene-1, 8-lactone via Selective Reduction of the Conjugated Ketone with Zn (BH₄)₂

Yong Ye LI, Mei XU, Fen Er CHEN

中国化学快报. 2004, 15(03): 265-268.

摘要 ( )

可视化

An improved and high-yielding synthesis of cis-5, 8-dihydroxy-1, 4, 5, 8, 9, 10-hexa-hydronaphthalene-1,8-lactone 7, an intermediate for (-)-reserpine 1 is presented. The conjugated ketone 5 was regioselectively reduced to afford lactone 7 with zinc borohydride formed in situ from KBH₄ and ZnCl₂ in THF.

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Synthesis of 7a-Aza-benzo[fg]naphthacen-7-one

Cheng Gang ZHANG, Bo Gang LI, Xiang Ge ZHOU, Guo Lin ZHANG

中国化学快报. 2004, 15(03): 269-272.

摘要 ( )

可视化

2, 3, 11, 12-Tetramethoxy-3b, 4, 5, 6-tetrahydro-8H-7a-aza-benzo[fg]naphthacen-7-one 7 was synthesized via N-acyliminium ion cyclization of 6-hydroxy-1-(2, 3, 6, 7-tetramethoxy-phenanthren-9-yl-methyl)-piperidin-2-one 6 catalyzed by BF₃·OEt₂. The stereostructure of the intermediate, 1-(2, 3, 6, 7-tetramethoxy-phenanthren-9-yl-methyl)-piperidine-2, 6-dione 5, was confirmed by X-ray crystallographic analysis. Compound 7 showed no cytotoxicity.

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Synthesize of 2, 6-Di-O-acetyl Sucrose by Regioselective Acetylation with Dibutyltin Oxide

Yu KE, Hong Min LIU, Zhen Zhong LIU

中国化学快报. 2004, 15(03): 273-274.

摘要 ( )

可视化

2,6-Di-O-acetyl sucrose was regioselective synthesized by using dibutyltin oxide in about 60% yield. The structure of acetyl derivative was elucidated by ¹H NMR, ¹³C NMR, 2D-NMR and MS spectral data.

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Solid-Phase Synthesis of Acrylamide Using Polymer-Supported β-Selenopropionic Acid

Shou Ri SHENG, Xing Cong WANG, Xiao Ling LIU, Xian HUANG

中国化学快报. 2004, 15(03): 275-276.

摘要 ( )

可视化

A novel polystyrene-supported β-selenopropionic acid has been developed and applied to facile synthesis of acrylamides.

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Yb(OTf)₃ Catalyzed Nucleophilic Conjugate Addition of Pyrrole to α,β-Unsaturated Ketones and Nitro-compounds

Pei Pei SUN, Ya Ping XIAO

中国化学快报. 2004, 15(03): 277-279.

摘要 ( )

可视化

Under the catalysis of Yb (OTf)₃, nucleophilic conjugate addition of pyrrole to electron deficient olefins in CH₂Cl₂ at ambient temperature gives corresponding 2-alkylated pyrrole derivatives in good yields with high selectivity.

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A Rapid Parallel Synthesis of 2-Dialkylamino-4(3H)-quinazolinones

Ming Wu DING, Ying LIU, Gui Feng ZHANG, Shang Jun YANG

中国化学快报. 2004, 15(03): 280-283.

摘要 ( )

可视化

2-Dialkylamino-4(3H)-quinazolinones 4 were rapidly synthesized by a solution-phase parallel synthetic method, which includes aza-Wittig reaction of iminophosphorane 1 with aromatic isocynate to give carbodiimide 2 and subsequent reaction of 2 with various aliphatic secondary amine in a parallel fashion.

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Facile Synthesis of 1, 2-Diazepine Derivatives under Microwave Irradiation

Jin Xian WANG, Xiao Ning SHI, Ke Hu WANG, Xiu Qin MEN

中国化学快报. 2004, 15(03): 284-285.

摘要 ( )

可视化

An efficient and convenient synthesis of 3, 5, 7-triaryl-4H-1, 2-diazepine from 2, 4, 6-triarylpyrylium salts and hydrazine in water under microwave irradiation is reported. The same reaction can be conducted using 2, 4, 6-triarylthiopyrylium salts and hydrazine.

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Microwave-promoted Palladium Catalyzed Suzuki Cross-coupling Reaction in Water

Lin BAI, Jin Xian WANG

中国化学快报. 2004, 15(03): 286-287.

摘要 ( )

可视化

A simple, rapid and environmental friendly method for the synthesis of biaryl compounds under microwave irradiation is reported.

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Synthesis of 1-Bromo-3-methoxy-4-propoxy-5-iodobenzene-A Novel Efficient Process for the Synthesis of Brominated Aromatic Compound

Hong Xin SHI, Hui LIN, G, rard MANDVILLE

中国化学快报. 2004, 15(03): 288-291.

摘要 ( )

可视化

The reaction of aromatic carboxylic acid with oxalyl chloride gives rise to the corres-ponding acid chloride which without purification is treated with the sodium salt of mercapto-pyridine oxide in the presence of 2,2-azo-bisisobutyronitrile (AIBN), radical initiator to give a brominated aromatic compound. After etherification and oxidation, 5-iodovaniline was converted to trisubstituted benzene carboxylic acid which give 1-bromo-3-methoxy-4-propoxy-5-iodo-benzene by this new brominating process with a yield of 74%.

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Syntheses, Structures and Coordination Behavior of Central Hydroxyl Group Containing Polydentate Ligands

Jun JIA, Xing Wang WANG, Yi Li ZHAO, Yu ZHU, Jing Chao TAO

中国化学快报. 2004, 15(03): 292-295.

摘要 ( )

可视化

Two central hydroxyl group containing Schiff base type ligands L¹ and L² as well as their metal complexes L¹·2CuCl₂·3H₂O and L²·Zn₂Cl₂·C₂H₅OH were synthesized and characterized. The crystal and molecular structures of L² and its zinc complex indicated well the means of coordination behavior. Both the two ligands showed good ion transport ability for alkali, alkaline earth and transition metal ions.

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Oxidation of Styrene with Molecular Oxygen in Supercritical CO₂

Tao JIANG, Bu Xing HAN, Guo Ying ZHAO, Zhong Hao LI, Yan Hong CHANG, Hai Xiang GAO, Jun Chun LI

中国化学快报. 2004, 15(03): 296-299.

摘要 ( )

可视化

The oxidation of styrene with molecular oxygen catalyzed by PdCl₂+CuCl₂ has been investigated in supercritical CO₂ with a batch reactor. The oxidative system of styrene contains four components at the beginning and seven components during the reaction. The critical temperature, critical pressure, and critical density at different conversions are determined by using a high-pressure view cell. The effect of phase behavior on the conversion and selectivity were studied. Experimental results showed that the critical parameters of the reaction mixture at fixed initial molar ratio changed with the conversion of reactant. The conversion of styrene reached maximum near the critical density of the reaction mixture. Product selectivity also varied with density of reaction mixture and could be tuned to some degree.

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Synthesis of Nucleoside Derivatives Containing Benzophenoxazinone Moiety

Yu GAO, Wu Xin ZOU, Ling WU, Jin Shui LI, Ji Tao WANG, Ji Ben MENG

中国化学快报. 2004, 15(03): 300-302.

摘要 ( )

可视化

Two new nucleoside derivatives containing benzophenoxazinone moiety were synthesized. Their luminescence spectra show that they have strong near infrared fluorescence. Our study provides a new method for direct introduction of near infrared fluorescent probe to bioactive molecules.

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Huperzine V, A New Lycopodium Alkaloid from Huperzia serrata

Hui Qing LIU, Chang Heng TAN, Shan Hao JIANG, Da Yuan ZHU

中国化学快报. 2004, 15(03): 303-304.

摘要 ( )

可视化

Huperzine V, a new Lycopodium alkaloid, was isolated from the whole plant of Huperzia serrata, and the absolute stereochemistry was determined by X-ray crystallographic analysis.

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Terresoxazine, A Novel Compound with Benzoxazine Skeleton from Tribulus terrestris

Jin Wen HUANG, Chang Heng TAN, Shan Hao JIANG, Da Yuan ZHU

中国化学快报. 2004, 15(03): 305-306.

摘要 ( )

可视化

Terresoxazine, a novel benzoxazine derivative was isolated from the fruits of Tribulus terrestris. Its structure was determined as 7-hydroxy-3, 3a-dihydro-5H-pyrrolo-[1,2-a] [3,1] -benzoxazin-1(2H)-one, on the basis of the spectral techniques and X-ray crystallographic analysis.

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A New Taxoid from Leaves and Branches of Taxus chinensis

Fu Sheng WANG, Li Yan PENG, Yu ZHAO, Qin Shi ZHAO, Kun GU, Han Dong SUN

中国化学快报. 2004, 15(03): 307-308.

摘要 ( )

可视化

A new taxoid, 2-deacetyl-2α, 14β-dihydroxybaccatin IV (1), was isolated from the leaves and branches of Taxus chinensis together with the known compound baccatin IV (2). The structure of the new compound was elucidated by spectroscopic techniques. The detailed ¹³C NMR assignments of baccatin IV are reported for the first time.

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Intercedenol A and B, Two New Triterpenoids from the Sea Cucumber Mensamaria intercedens

Zheng Rong ZOU, Yang Hua YI, Hou Ming WU, Jiu Hong WU, Da Zheng ZHOU, Shu Yu ZHANG

中国化学快报. 2004, 15(03): 309-312.

摘要 ( )

可视化

Two new triterpenoids named intercedenol A and B were isolated from the acid hydrolysate of the crude glycoside fraction. The structures were elucidated by ESI-MS and NMR spectrum.

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Two New Phloroglucinol Glycosides from Lysidice rhodostega Hance

Song GAO, Shi Shan YU, De Quan YU

中国化学快报. 2004, 15(03): 313-315.

摘要 ( )

可视化

Two new phloroglucinol glycosides, lysidiciside A (1) and lysidiciside B (2), were isolated from the roots of Lysidice rhodostega Hance. Their structures were determined as 1-[(3-methylbutyryl)phloroglucinol]-β-D-glucopyranoside (1), 1-[(3-methylbutyryl)phloro-glucinol]-β-D-glucopyranosyl-5-O-β-D-glucopyranoside (2) on the basis of chemical and spectral analysis.

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A New Sesquiterpene-substituted Benzoic Acid from the Brown Alga Dictyopteris divaricata

Fu Hang SONG, Xiao FAN, Xiu Li XU, Jie Lu ZHAO, Li Jun HAN, Jian Gong SHI

中国化学快报. 2004, 15(03): 316-318.

摘要 ( )

可视化

A new sesquiterpene-substituted benzoic acid has been isolated from the brown Alga Dictyopteris divaricata Okam.. Its structure was elucidated as 3-[(2-hydroxy-2,5,5,8a-tetra-methyldecahydro-1-naphthalenyl)methyl]-4-hydroxybenzoic acid, named dictyvaric acid on the basis of spectroscopic methods including IR, HRFABMS, 1D and 2D NMR techniques.

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Selective Determination of Nanogram γ-Globulin in Human Blood Serum by Resonance Light Scattering of Functionalized Nano-PbS

Le Yu WANG, Hong Qi CHEN, Ling LI, Ling DONG, Ting Ting XIA, Lun WANG

中国化学快报. 2004, 15(03): 319-321.

摘要 ( )

可视化

Functionalized nano-PbS has been prepared and characterized. The functionalized nanoparticles have good dispersibility in water. Reaction of functionalized nano-PbS with γ-globulin (γ-IgG) results an enhanced resonance light scattering (RLS) around 385 nm. However, when the content of HAS is lower than 0.5 μg ml^-1 the RLS enhancement is very weak and is nonlinear to concentration of HAS. Based on these results, a new direct quantitative determination method for γ-globulin in blood serum samples without separation is established. Under optimal conditions, the enhanced RLS intensity is in proportion to the γ-IgG concentration in the range 10-500 ng/Ml. The limit of detection is 2.75 ng/Ml. This method is proved to be very sensitive, rapid, simple and selective for detection of γ-IgG in blood serum.

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Multianalyte Biosensors for the Simultaneous Determination of Glucose and Galactose Based on Thin Film Electrodes

Neng Qin JIA, Zong Rang ZHANG, Jiang Zhong ZHU, Guo Xiong ZHANG

中国化学快报. 2004, 15(03): 322-325.

摘要 ( )

可视化

A multianalyte biosensor for the simultaneous determination of glucose and galactose was developed by immobilizing glucose oxidase (GOD) and galactose oxidase (GAO) on Nafion-modified thin film platinum disk electrodes. The dual Pt working electrodes with disk shape and the surrounding ring shaped counter electrode were fabricated by thin film technology, which were integrated onto the same microchip. The response of the designed biosensor for glucose and galactose were linear up to 6.0 mmol/L and 3.5 mmol/L with sensitivities of 0.3 (A/mmol/L and 0.12 μA/mmol/L, respectively. No cross-talking effect was observed.

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The Chemical Speciation and Behavior of Mercury and Selenium in the Insoluble Fraction of Striped Dolphin Liver

Xiao Rong HU, Hui LI, Yong Xiang ZHANG

中国化学快报. 2004, 15(03): 326-329.

摘要 ( )

可视化

Most of the mercury and selenium exist in the insoluble fraction of dolphin liver. After the insoluble fraction was digested by alkaline protease in the presence of 1% SDS, approximately 50% of Hg and Se consisted in the supernatant and the others in the residue. Gel filtration chromatography of the hydrolysate showed that 96% of Hg and 87% of Se were combined with the high molecular weight proteins stably, which cannot be substituted by the complex reagents. Mercury and selenium in the residue were confirmed as HgSe crystal.

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Preparation of PVA/H₃PW₁₂O₄₀ Fiber Mats

Jian GONG, Chang Lu SHAO, Guo Cheng YANG, Yan PAN, Lun Yu QU

中国化学快报. 2004, 15(03): 330-332.

摘要 ( )

可视化

Poly (vinyl alcohol) (PVA) fiber mats containing 20 and 80 wt% H₃PW₁₂O₄₀ were prepared by using electrospinning technique. The fiber mats were characterized by IR, XRD spectra and scanning electron microscope (SEM). The diameter of the fiber mats is ca. 400 nm.

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Synthesis and Characterization of Organophosphazene Polyoxotungstate[(N₃P₃)(SiW₁₁O₃₉H₂)₃]^12-

Jian GONG, Chang Lu SHAO, Lun Yu QU

中国化学快报. 2004, 15(03): 333-334.

摘要 ( )

可视化

A new organophosphazene polyoxotungstate,[(N₃P₃)(SiW₁₁O₃₉H₂)₃]^12-, has been prepared by reaction of hexachlorocyclotriphosphazene with undecatungstosilicate, and characterized by elemental analysis, infrared spectroscopy, and multinuclear ³¹P NMR.

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A Novel White Light Emitting Long-lasting Phosphor

Bing Fu LEI, Ying Liang LIU, Ze Ren YE, Chun Shan SHI

中国化学快报. 2004, 15(03): 335-338.

摘要 ( )

可视化

A novel white light emitting long-lasting phosphor Cd_1-xDy_xSiO₃ is reported in this letter. The Dy³⁺ doped CdSiO₃ phosphor emits white light. The phosphorescence can be seen with the naked eye in the dark clearly even after the 254 nm UV irradiation have been removed for about 30 min. In the emission spectrum of 5% Dy³⁺ doped CdSiO₃ phosphor, there are two emission peaks of Dy³⁺, 580 nm (⁴F_9/2→⁶H_13/2) and 486 nm (⁴F_9/2→⁶H_15/2), as well as a broad band emission located at about 410 nm. All the three emissions form a white light with CIE chromaticity coordinates x=0.3874, y=0.3760 and the color temperature is 4000 K under 254 nm excitation. It indicated that this phosphor is a promising new luminescent material for practice application.

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Room Temperature Phosphorescence of 1-Bromo-4-(bromoacetyl) naphthalene Induced by Sodium Deoxycholate

Yu WANG, Wei Jun JIN, Jian Bing CHAO, Li Ping QIN

中国化学快报. 2004, 15(03): 339-342.

摘要 ( )

可视化

Sodium deoxycholate (NaDOC) could induce 1-bromo-4-(bromoacetyl) naphthalene (BBAN) to emit strong room temperature phosphorescence (RTP). Measurements of phosphore-scence spectra, peak intensity and polarization were used to investigate the solubilization of BBAN as a function of NaDOC concentration.

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Direct Observation of Non-covalent Complexes for Phosphorylated Flavonoid-protein Interaction by ESI

Xiao Lan CHEN, Ting ZHANG, Hong Xia LIU, Ling Bo QU, You Zhu YU, Yu Fen ZHAO

中国化学快报. 2004, 15(03): 343-346.

摘要 ( )

可视化

Diethyl flavon-7-yl phosphate was synthesized by modified Atheron-Todd reaction. The result of ESI shows that the phosphated flavonoids possess stronger binding affinities toward proteins such as myoglobin, insulin and lysozyme and are easier to form the non-covalent complexes with them.

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A Modified Chitosan Adsorbent for Selective Removal of Low Density Lipoprotein

Guo Qi FU, Ke Yu SHI, Zhi YUAN, Wen Qiang NIU, Bing Lin HE, Bin LIU, Bin SHEN, Yan LIU

中国化学快报. 2004, 15(03): 347-349.

摘要 ( )

可视化

A modified chitosan adsorbent was synthesized through a simple preparation procedure, and it demonstrated good adsorption performance for selective removal of low density lipoprotein in human plasma. Phase inversion technique was employed to form chitosan beads, to which epoxy groups were then introduced by reacting with ethyleneglycol diglycidylether, and tryptophan was subsequently coupled to the epoxy-activated beads.

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A New Reaction-controlled Phase-transfer Catalyst System

Ming Qiang LI, Xi Gao JIAN, Gui Mei WANG, Yan YU

中国化学快报. 2004, 15(03): 350-352.

摘要 ( )

可视化

A new reaction-controlled phase-transfer catalyst system was designed and synthesized. In this system, heteropolytungstate[C₇H₇N(CH₃)₃]₉PW₉O₃₄ was used for catalytic epoxidation of cyclohexene with H₂O₂ as the oxidant. The conversion of H₂O₂ was 100% and the yield of cyclohexene oxide was 87.1% based on cyclohexene. Infrared spectra showed that both fresh catalyst and the recovered catalyst do have completely same absorption peak, indicating the structure of catalyst is very stability and can be recycled.

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Reaction of 1, 1-Di-p-methoxyphenyl-2, 2-dinitroethylene and 1, 1-Di-O-methoxyphenyl-2, 2-dinitroethylene with 1-Benzyl-1, 4-dihydroni-cotinamide:Evidence for Concerted Electron-hydrogen Atom Transfer Mechanism

Dan Mei DAI, You Cheng LIU, Jing LI, Pei WANG, Xu Dong CHEN, Thomas C.W.MAK

中国化学快报. 2004, 15(03): 353-356.

摘要 ( )

可视化

1, 1-Di-p-methoxyphenyl-2, 2-dinitroethylene reacts with 1-benzyl-1, 4-dihydronico-tinamide (BNAH) in deaerated acetonitrile to give 1, 1-di-p-methoxyphenyl-2, 2-dinitroethane, while 1, 1-di-O-methoxyphenyl-2, 2-dinitroethylene fails to react with BNAH under the same conditions, which provides evidence for a concerted electron-hydrogen atom transfer mechanism.

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Synthesis of Metal Porphyrins Tailed with Salicylic Acid and their Interaction with Bovine Serum Albumin

Tao JIA, Kai WANG, Yi Mei ZHAO, Zao Ying LI

中国化学快报. 2004, 15(03): 357-360.

摘要 ( )

可视化

A synthetic method of porphyrins tailed with salicylic substituents is described. Reaction of bromoalkoxyphenyl porphyrin 1 with salicylic acid gave porphyrins 2~5. These new compounds were confirmed by ¹H NMR, IR, UV-vis, MS and elemental analysis, and observed their interaction with bovine serum albumin (BSA) in fluorescence spectrum.

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Studies on Phase Behavior of Alkyl Polyglucoside Based on Microemulsions with Modified Fishlike Phase Diagram

Jin Ling CHAI, Gan Zuo LI, Zhao Yu DIAO, Gao Yong ZHANG

中国化学快报. 2004, 15(03): 361-364.

摘要 ( )

可视化

The three-phase behavior in the quaternary system of an alkyl (C_8/10-or C_12/14-) polyglucoside/1-butanol/n-octane/water has been studied at 40℃ with the modified fishlike phase diagram, which is presented by us for the first time. The mass fraction of 1-butanol in the hydrophile-lipophile balanced interfacial layer, A^S, the coordinates of the start point B and the end point E of the phase diagram, and the solubilities of alkyl polyglucoside and 1-butanol in n-octane phase were calculated. The solubilization of the microemulsion was also discussed.

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A Novel Method for Making NiO Nanofibres via An Electrospinning Technique

Chang Lu SHAO, Hong Yu GUAN, Shang Bin WEN, Bin CHEN Xing Hua YANG, Jian GONG

中国化学快报. 2004, 15(03): 365-367.

摘要 ( )

可视化

Thin PVA/nickel acetate composite fibres were prepared by using sol-gel processing and electrospinning technique. After calcination of the above precursor fibres, NiO nanofibres with a diameter of 50-150 nm could be successfully obtained. The fibres were characterized by SEM, FT-IR, WAXD, respectively.

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Photocatalytic Hydrogen and Oxygen Formation from Water over Ga-modified Zeolite

Chong Heng HE, O Bong YANG

中国化学快报. 2004, 15(03): 368-370.

摘要 ( )

可视化

Water could be decomposed into hydrogen and oxygen over Ga-modified ZSM-5 zeolite under UV irradiation. The photocatalytic activity was elevated significantly by supporting the gallium species and was sensitive to the loading amount of gallium species on the ZSM-5 zeolites.

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A Novel Method for Preparing Approximately Micron-sized Polymethyl Methacrylate Microspheres with Clear Surface

Di Qiang WANG, Bai Ling LIU, Jie HU, Xiao Qin LIN, Min ZHANG

中国化学快报. 2004, 15(03): 371-374.

摘要 ( )

可视化

Polymethyl methacrylate (PMMA) microspheres with clear surface and diameter close to 1 μm were synthesized by newly soap-free emulsion polymerization. The results showed that the presence of ethanol and NaCl made the increase of diameter and distribution, while the presence of toluene could avoid the problem of the increase of distribution, resulting a harvest of PMMA microspheres with a diameter close to 1 μm.

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Synthesis of New Naphthaline-type Chromophores with Strong Green-emitting or the Blue-emitting in β-Cyclodextrin

Qin Fen SHI, Xiao Mei WANG, Ke Jun PAN, Wan Li JIANG, Di Jiang WEN, Xin Bo WANG

中国化学快报. 2004, 15(03): 375-378.

摘要 ( )

可视化

Three new naphthaline-type chromophores end-capped with different (p-substituted amino) styryl groups on the both sides (named as BPASN, BHMASN and BMASN) have been synthesized. Under excitation of 380 nm, strong green light-emitting locating at 517 nm with the fluorescence quantum yield of 0.88 in CH₂Cl₂ has been obtained. In the presence of β-cyclodextrin (β-CD), strong blue-emitting at 456 nm in DMF was also recorded.

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2004年, 第15卷, 第03期　刊出日期：2004-03-20

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2004年, 第15卷, 第03期 刊出日期：2004-03-20

2004年, 第15卷, 第03期　刊出日期：2004-03-20