2011年, 第22卷, 第10期　刊出日期：2011-10-20

  

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  A concise synthetic approach to dihydrochalcone:First total syntheses of bipinnatone A and B

  Xiao Long Zhao, Hui Zhi Li, Xian Shu Zhang, Wen Jing Wang, Shi Jun Da, Ying Li

  中国化学快报. 2011, 22(10): 1135-1138. https://doi.org/10.1016/j.cclet.2011.05.010

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  The first total syntheses of bipinnatone A and B have been achieved starting from commercially available phloroglucinol, p-hydroxybenzaldehyde in ten steps. Key features of the syntheses include Aldol reaction, aryl-alkylation and InCl₃-NaBH₄ selective reduction.
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  Synthesis and in vitro activities on anti-platelet aggregation of N,N'-di(2-substituted-phenyl)-4-methoxyisophthalamides and benzene-1,3-disulfonamides

  Xiu Jie Liu, Xin He, Cheng Ling Shi, Jie Meng, Ying Lu Shao, Hong Qiang Si, Tao Hu

  中国化学快报. 2011, 22(10): 1139-1142. https://doi.org/10.1016/j.cclet.2011.05.032

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  On the propose of searching for the SAR and obtaining novel antiplatelet aggregating drugs, we have described the synthesis procedure and the activities in vitro on antiplatelet aggregation of two series of derivatives, which contain both 18 N, N'-di (2-substitutedphenyl)-4-methoxyisophthalamides (2a-2r) of the 2 series and nine N, N'-di (2-substitutedphenyl)-4-methoxybenzene-1, 3-disulfonamides (3a-3i) of the 3 series. The results showed that three compounds 2e, 2i and 3g emerged as significant activities of antiplatelet aggregation, superior to two reference drugs picotamide and aspirin, and eight compounds 2j, 2k, 2l, 2o, 2p, 2q, 2r and 3i merely superior to picotamide. The preliminary SAR shows that it is favorable for the 2 series to increase the activities via the steric hindrance substituents attached to the two side chain benzene rings at 2-positions. And the arylamides of the 2 series have better the activity values than the arylsulfonamides of the 3 series respective except for 3b and 3g. On the contrary, electrostatic factors would not contribute evidently to the activities of the two series. The structures of 15 compounds newly synthesized have been established by MS and ¹H NMR and been first reported in this paper.
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  Synthesis of the 1,3-oxathiolanes using asymmetrically oxiranes

  Faramarz Rostami-Charati, Zinatossadat Hossaini, Bita Mohtat, Mehdi Shahraki, Mohammad R. Hosseini-Tabatabaei

  中国化学快报. 2011, 22(10): 1143-1146. https://doi.org/10.1016/j.cclet.2011.05.021

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  An efficient synthesis of 1, 3-oxathiolane-2-imin derivatives is described via one-pot reaction between arylisothiocyanats, asymmetrically substituted oxiranes and catalytic amount of methanol. The mild reaction conditions and high yields of the products exhibit the good synthetic advantage of this method.
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  Synthesis and properties of tribranched chromophores with triazine and fluorene units

  Li Liu, Zhi Qiang Zhou, Jie Ping Shi, Chang Gui Lu, Yi Ping Cui, Guo Yuan Lu

  中国化学快报. 2011, 22(10): 1147-1150. https://doi.org/10.1016/j.cclet.2011.05.045

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  Two tribranched chromophores, 1, 3, 5-triazine as electron deficient core, 9, 9-dimethylfluorene as π-conjugated bridge, diphenylamino (4a) and naphthylamino (4b) as electron-donating end-groups, were successfully prepared via Buchwald-Hartwig coupling reaction. Their linear photophysical and two-photon absorption (TPA) properties were investigated by absorption, fluorescence and nonlinear transmission method, respectively. The absorption cut-offs of the chromophores are below 550 run and both chromophores have strong fluorescence emission. The compound 4a (206.3 GM) exhibits larger TPA cross-section than 4b (57.8 GM) in the femtosecond regime at 800 nm.
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  Sulfuric acid {[3-(3-silicapropyl)sulfanyl]propyl}ester a recyclable catalyst for the synthesis of 2-aryl-1-arylmethyl-1H-1,3-benzimidazole derivatives

  Nasir Iravani, Negar Safikhani Mohammadzade, Khodabakhsh Niknam

  中国化学快报. 2011, 22(10): 1151-1154. https://doi.org/10.1016/j.cclet.2011.04.012

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  A highly selective synthesis of 2-aryl-1-arylmethyl-1H-1, 3-benzimidazoles from the reaction of o-phenylenediamine and aromatic aldehydes in the presence of sulfuric acid {[3-(3-silicapropyl)sulfanyl]propyl}Jester (SASPSPE) in water and at 80℃ in good to excellent yields.
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  Friedel-Crafts alkylation of indoles with nitroalkenes catalyzed by Cu(Ⅱ)-imine complex

  Ning Ning Wan, Yong Lei Yang, Wen Ping Wang, Zheng Feng Xie, Ji De Wang

  中国化学快报. 2011, 22(10): 1155-1158. https://doi.org/10.1016/j.cclet.2011.04.013

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  A series of new ligands L₁-L₇ were readily prepared in one step. Friedel-Crafts alkylation of indoles with nitroalkenes catalyzed by a novel Cu (Ⅱ)-L complex has been developed. The remarkable advantages of this reaction are mild reaction conditions, simple workup procedure, high yields of products and the use of ethanol as a green solvent.
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  A novel and efficient route for the preparation of atorvastatin

  Jian Gao, Yang Hui Guo, Ya Ping Wang, Xiang Jing Wang, Wen Sheng Xiang

  中国化学快报. 2011, 22(10): 1159-1162. https://doi.org/10.1016/j.cclet.2011.04.016

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  A novel and efficient synthetic method of atorvastatin was described. The key step of the synthesis was the construction of the olefin linkage between the chiral side chain and skeleton via a Horner-Wadsworth-Emmons reaction, resulting in the advanced intermediate of atorvastatin under hydrogenation of the olefin over Pd/C. This novel method is more useful for the practical synthesis of atorvastatin than its document reported methods.
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  Synthesis of 2,3-dihydroquinazolin-4(1H)-ones catalyzed by zirconium (IV) chloride as a mild and efficient catalyst

  Mohammad Abdollahi-Alibeik, Elahe Shabani

  中国化学快报. 2011, 22(10): 1163-1166. https://doi.org/10.1016/j.cclet.2011.05.011

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  2, 3-Dihydroquinazolin-4 (1H)-ones have been synthesized in the high to excellent yields via condensation of 2-aminobenzamide with aldehydes and ketones in the presence of catalytic amount of ZrCl₄ in EtOH at room temperature. Mild reaction conditions, clean reaction media, simple workup and easy purification are advantages of this methodology.
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  Synthesis and characterization of asymmetric substituted dicarbamates

  Chao Zhao, Peng Fei Yang, Shun Ping Wang, Jun Ying Li, Tian Duo Li

  中国化学快报. 2011, 22(10): 1167-1170. https://doi.org/10.1016/j.cclet.2011.05.009

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  Several new asymmetric substituted dicarbamates were synthesized with a convenient route. Firstly, tolylene-2, 4-diisocyanate dimmer was obtained from monomer with tributylphosphine as catalyst. Then, the dimmer reacted with alcohol (R¹OH) to prepare carbamate substituted uretidione. Finally, uretidione ring was opened and the released isocyanate reacted with another alcohol (R²OH, R¹≠R²).
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  Silicon mediated synthesis and selected transformations of β-chloroketones

  Tarek A. Salama, Saad S. Elmorsy

  中国化学快报. 2011, 22(10): 1171-1174. https://doi.org/10.1016/j.cclet.2011.05.007

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  A combination of tetrachlorosilane (TCS) and phenol in dichloromethane was found to be an efficient reagent for hydro-chlorination of α, β-unsaturated ketones to afford the corresponding β-chloroketones in good yield at ambient temperature. Reactions of the titled compounds with TCS-NaN₃ as well as with nitriles utilizing TCS-ZnCl₂ to give 1, 5-disubstituted tetrazole derivatives or β-amido ketones respectively are also described.
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  Copper and amine free Sonogashira cross-coupling reaction catalyzed by efficient diphosphane-palladium catalyst

  Ting He, Lei Lei Wu, Xing Li Fu, Hai Yan Fu, Hua Chen, Rui Xiang Li

  中国化学快报. 2011, 22(10): 1175-1178. https://doi.org/10.1016/j.cclet.2011.05.014

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  The commercially available diphosphane ligand MeO-BIPHEP was first investigated in the palladium-catalyzed Sonogashira reaction in the absence of copper and amine. The coupling of various aryl bromides and aryl chlorides with phenylacetylene gave moderate to excellent yields.
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  A mild and highly efficient one-pot three-component reaction for carbon-sulfur bond formation catalyzed by potassium tert-butoxide

  Barahman Movassagh, Amir Rakhshani

  中国化学快报. 2011, 22(10): 1179-1182. https://doi.org/10.1016/j.cclet.2011.05.015

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  Potassium tert-butoxide has been found to be a highly efficient catalyst for one-pot, three-component reaction of aryl aldehydes, acetophenones, and thiols via Claisen-Schmidt/Michael addition reactions for the synthesis of thia-Michael adducts in high yields. The reactions are best carried out in tert-butyl alcohol at room temperature.
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  A clean and efficient cyclocondensation to pyrido[2,3-d]pyrimidine derivatives in aqueous media

  Robabeh Baharfar, Razieh Azimi

  中国化学快报. 2011, 22(10): 1183-1186. https://doi.org/10.1016/j.cclet.2011.04.020

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  A series of pyrido[2, 3-d]pyrimidine derivatives were easily constructed by cyclocondensation reactions of 6-aminouracils or 6-aminothiouracil with α, β-unsaturated carbonyl compounds (aldehyde, ketone and ester) possessing a leaving group on the β position, in H₂O under reflux conditions.
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  Silica chloride catalyzed one-pot synthesis of fully substituted pyrazoles

  Dhanaji V. Jawale, Umesh R. Pratap, Jyotirling R. Mali, Ramrao A. Mane

  中国化学快报. 2011, 22(10): 1187-1190. https://doi.org/10.1016/j.cclet.2011.05.016

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  Silica chloride catalysted one pot cyclocondensation of aldehydes, ethyl acetoacetate and phenyl hydrazine leading to substituted pyrazoles has been reported.
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  Heterocyclic benzoxazole-based liquid crystals:Synthesis and mesomorphic properties

  Sie Tiong Ha, Kok Leei Foo, Ramesh T. Subramaniam, Masato M. Ito, S. Sreehari Sastry, Siew Teng Ong

  中国化学快报. 2011, 22(10): 1191-1194. https://doi.org/10.1016/j.cclet.2011.05.017

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  New Schiff base liquid crystals containing benzoxazole core and alkanoyloxy chain at the end group of the molecules (C_n-1H_2n-1COO-, n=14, 16, 18) was synthesized. The present compounds are enantiotropic smectic A liquid crystals. It was also found that the end groups of the molecules and polar chloro substituent at the benzoxazole fragment had effect on the mesomorphic properties.
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  FeBr₃-catalyzed dibromination of alkenes and alkynes

  Yun Fa Zheng, Jian Yu, Guo Bing Yan, Xu Li, Song Luo

  中国化学快报. 2011, 22(10): 1195-1198. https://doi.org/10.1016/j.cclet.2011.05.005

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  The dibromination of alkenes and alkynes with bromosuccinimide and sodium bromide catalyzed by FeBr₃ under mild conditions has been developed. The trans-dibromo compounds were exclusively obtained with excellent yields.
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  An efficient and solvent-free one-pot synthesis of 1,4-dihydropyridines under microwave irradiation

  A. Kuraitheerthakumaran, S. Pazhamalai, M. Gopalakrishnan

  中国化学快报. 2011, 22(10): 1199-1202. https://doi.org/10.1016/j.cclet.2011.05.003

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  An efficient synthesis of 1, 4-dihydropyridines using lanthanum oxide as a catalyst from aldehydes, β-ketoester and ammonium acetate without solvent under the irradiation of microwave is described. Compared with the classical Hantzsch reaction, this new method has the advantage of good yield (90-98%) and short reaction time (40-80 s).
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  Nano TiO₂ as a heterogeneous catalyst in an efficient one-pot three-component Mannich synthesis of β-aminocarbonyls

  M. Z. Kassaee, Reza Mohammadi, Hassan Masrouri, Farnaz Movahedi

  中国化学快报. 2011, 22(10): 1203-1206. https://doi.org/10.1016/j.cclet.2011.05.019

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  TiO₂ nanoparticles (TiO₂ NPs) worked as an efficient heterogeneous catalyst in a one-pot, three-component, and solvent free Mannich reaction; producing various β-aminocarbonyls in good yields, and with good stereoselectivities. The catalyst was easily separated from the reaction mixture and was recycled four times with no significant loss of its catalytic activity.
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  Polyvinylpolypyrrolidonium tribromide as new and metal-free catalyst for the formylation and trimethylsilylation of hydroxyl group

  Arash Ghorbani-Choghamarani, Hamid Goudarziafshar, Parisa Zamani

  中国化学快报. 2011, 22(10): 1207-1210. https://doi.org/10.1016/j.cclet.2011.05.020

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  Trimethylsilylation of alcohols was achieved using 1, 1, 1, 3, 3, 3-hexamethyldisilazane (HMDS) as silylating agent, in the presence of polyvinylpolypyrrolidonium tribromide in acetonitrile at room temperature. Also a variety of alcohols were converted into alkyl formates by ethyl formate and a catalytic amount of polyvinylpolypyrrolidonium tribromide under solvent free conditions at room temperature.
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  Nanocrystalline TiO₂ as an efficient and reusable catalyst for the chemoselective trimethylsilylation of primary and secondary alcohols and phenols

  Farhad Shirini, Meysam Alipour Khoshdel, Masoumeh Abedini, Seyyed Vahid Atghia

  中国化学快报. 2011, 22(10): 1211-1214. https://doi.org/10.1016/j.cclet.2011.05.002

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  Nanocrystalline TiO₂ was used as an efficient and recyclable catalyst for the chemoselective trimethylsilylation of primary and less hindered secondary alcohols and phenols with hexamethyldisilazane (HMDS). All reactions were performed under mild and completely heterogeneous conditions in good to excellent yields.
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  Design, synthesis and in vivo anti-hyperglycemic activity of gem-dimethyl-bearing C-glucosides as SGLT2 inhibitors

  Wen Jing Zhao, Yong Heng Shi, Gui Long Zhao, Yu Li Wang, Hua Shao, Li Da Tang, Jian Wu Wang

  中国化学快报. 2011, 22(10): 1215-1218. https://doi.org/10.1016/j.cclet.2011.05.022

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  A series of gem-dimethyl-bearing C-glucosides were designed and synthesized as SGLT2 inhibitors, with anhydrous aluminum chloride-mediated Friedel-Crafts alkylation to construct the gem-dimethyl functionality being the key step. The in vivo anti-hyperglycemic activity was evaluated with mice oral glucose tolerance test (OGTT), and all the synthesized compounds showed significant but less potent anti-hyperglycemic activity than the positive control dapagliflozin.
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  A solvent-free synthesis of 1,2,3,5-tetrasubstituted pyrroles from enaminones and α-haloketones

  Issa Yavari, Maryam Ghazvini, Leila Azad, Tayebeh Sanaeishoar

  中国化学快报. 2011, 22(10): 1219-1222. https://doi.org/10.1016/j.cclet.2011.05.026

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  A simple synthesis of 1, 2, 3, 5-tetrasubstituted pyrrole derivatives from the reaction of enaminone with α-haloketones, under solvent-free conditions, is described.
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  Synthesis and in vitro cytotoxic evaluation of 2-hydrazinylpyrido[2,3-b]pyrazin-3(4H)-one derivatives

  Guo Gang Zhang, Ya Jing Liu, Xiao Guang Ma, Hao Dong, Ju Li, Ping Gong

  中国化学快报. 2011, 22(10): 1223-1225. https://doi.org/10.1016/j.cclet.2011.05.031

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  A series of novel 2-hydrazinylpyrido[2, 3-b]pyrazin-3 (4H)-one derivatives were synthesized and evaluated for their cytotoxic activities against A549, MDA-MB-231 and HT-29 cell lines in vitro. Pharmacological data indicated that compounds 5b, 5c, 10a and 10g possessed marked cytotoxicity, especially 10a (with IC₅₀ values of 0.81, 2.56 and 1.63 μmol/L against A549, MDA-MB-231 and HT29 cell lines, respectively), which had emerged as a lead compound.
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  Secondary metabolites from fungus Alternaria sp.CIB 108

  Qian Feng Chen, Min Zhou, Tao Yang, Xiao Zhen Chen, Chun Wang, Guo Lin Zhang, Guo You Li

  中国化学快报. 2011, 22(10): 1226-1228. https://doi.org/10.1016/j.cclet.2011.05.036

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  A new compound, 3-butyryl-6-[rel-(1S, 2S)-1, 2-dihydroxypropyl]-4-hydroxy-2H-pyran-2-one (1), was isolated from the solid fermented rice culture of Alternaria sp. CIB 108, along with three known ones, deoxyradicinin (2), 3-epiradicinol (3), and 3-epideoxyradicinol (4). Their structures were elucidated on the basis of spectroscopic data. The single crystal X-ray diffraction was applied to further clarify the structure of 1. Furthermore, compounds 1-4 possessed no cytotoxicity against several cell lines (HeLa, HepG2, and Ros) and showed no antibacterial activity at 40 μmol/L.
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  Isolation and characterization of a new subunit of phycocyanin from Chroomonas placoidea

  Yun Yun Zhang, Min Chen, Hong Cui

  中国化学快报. 2011, 22(10): 1229-1232. https://doi.org/10.1016/j.cclet.2011.04.007

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  A new phycocyanin (PC) fluorescent subunit named β₂ (18 kDa) was isolated and characterized by both SDS-PAGE and isoelectric focusing (IEF) from a species of cryptophytic alga Chroomonas placoidea. PC was separated and purified by ammonium sulfate sedimentation followed by two steps of Sephadex G-100 chromatography. After denatured in 4 mol/L urea for 48 h, PC was divided into two fractions by passing through a Sephacryl S-100 chromatography column twice. The blue fraction (S-1) contained β subunits with a maximal absorbance at 595 nm in visible light region. While the green fraction (S-2) enriched in α subunits showed a characteristic long wavelength absorbance at 680-700 nm region and exhibited a relatively low molecular weight of 9.4 (α₁) and 8.5 kDa (α₂). Fraction S-1 also consisted of two different fluorescent subunits with molecular weight of 20.1 kDa (β₁) and 18 kDa (β₂) and differed from each other on isoelectric points of pH 5.7 (β₁) and 6.0 (β₂), respectively. Further investigation of peptide sequence will help a lot in elucidating the new subunit β₂ that was smaller in size and more neutral than the known β₁subunit, and may provide an alternative explanation in structure of cryptophytic phycobiliproteins.
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  New iridoid glucoside from Wendlandia tinctoria roots

  Biswanath Dinda, Sudhan Debnath, Santanu Majumder, Noriko Sato, Yoshihiro Harigaya

  中国化学快报. 2011, 22(10): 1233-1236. https://doi.org/10.1016/j.cclet.2011.05.018

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  A new iridoid glucoside, 10-O-veratroyleranthemoside (1) was isolated from the roots of Wendlandia tinctoria. The structure was established by spectroscopic (including 2D NMR) and chemical methods.
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  Simultaneous determination of active ingredients in blueberry wine by CE-AD

  Zi Cheng Li, Lang Zhu Chi, Jin Kun Zhu, Yin Yan Zhang, Qing Jiang Wang, Pin Gang He, Yu Zhi Fang

  中国化学快报. 2011, 22(10): 1237-1240. https://doi.org/10.1016/j.cclet.2011.04.011

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  A method based on capillary electrophoresis coupled with amperometric detection (CE-AD) has been developed for the separation and determination of kaempferol, ferulic acid, vanillic acid, caffeic acid, gallic acid and protocatechuic acid in blueberry wine for the first time. In order to get the optimum conditions of separation, the effects of working electrode potential, pH value and concentration of running buffer, separation voltage and injection time on CE-AD were investigated. Under the optimum conditions, the analytes could be separated in Na₂B₄O₇-KH₂PO₄ buffer at pH 7.8 within 18 min. A 300 μm diameter carbon disk electrode had good current responses at +0.95 V (vs. SCE) for all analytes. The responses were linear with concentrations over three orders of magnitude with detection limits (S/N=3) at 10^-8 g/mL magnitude for the analytes and the recoveries were in the range of 95.8-106.7%. The method could be successfully applied to the analysis of real sample with satisfactory results and therefore recommended for use by the quality control departments of fruit wine producers.
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  Discrimination of industrial products by on-line near infrared spectroscopy with an improved dendrogram

  Jing Jing Liu, Heng Xu, Wen Sheng Cai, Xue Guang Shao

  中国化学快报. 2011, 22(10): 1241-1244. https://doi.org/10.1016/j.cclet.2011.04.019

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  Near infrared (NIR) spectroscopy technique has shown great power and gained wide acceptance for analyzing complicated samples. The present work is to distinguish different brands of tobacco products by using on-line NIR spectroscopy and pattern recognition techniques. Moreover, since each brand contains a large number of samples, an improved dendrogram was proposed to show the classification of different brands. The results suggest that MR spectroscopy combined with principal component analysis (PCA) and hierarchical cluster analysis (HCA) performs well in discrimination of the different brands, and the improved dendrogram could provide more information about the difference of the brands.
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  High performance liquid chromatography with immobilized Ru(bpy)₃²⁺-KMnO_{4 chemiluminescence detection and its application in metabolism of repaglinide in pig liver microsomes}

  Ai Hua Fu, Zhu Jun Zhang, Li Li Chen, Xiao Ming Zhang, Pan Xue

  中国化学快报. 2011, 22(10): 1245-1248. https://doi.org/10.1016/j.cclet.2011.05.023

  摘要 ( ) PDF全文 ( ) 可视化 收藏

  A novel high performance liquid chromatography-chemiluminescence (HPLC-CL) method for investigation of in vitro metabolism of repaglinide in pig liver microsomes with microdialysis sampling technique was developed. The chromatographic separation was performed on a Hypersil BDS-C18 column with an isocratic mobile phase consisting of methanol and 0.01 mol/L KH₂PO₄ (pH 3.0) (volume ratio 75:25) at a flow rate of 1.0 mL/min. The detection was based on the chemiluminescence reaction of repaglinide with acidic potassium permanganate (KMnO₄) and tris (2, 2'-bipyridyl)ruthenium (III) (Ru (bpy)₃³⁺), which was immobilized on the cationic ion-exchange resin for obtaining high sensitivity and reducing consumption of expensive reagent.
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  Comparative study between novel self cross-linking and conventional fluorinated acrylic latex

  Li Jun Chen

  中国化学快报. 2011, 22(10): 1249-1252. https://doi.org/10.1016/j.cclet.2011.03.021

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  Novel self cross-linking fluorinated acrylic latex (SCLFAL) has been successfully prepared via starved seeded semi-batch emulsion polymerization. The resultant SCLFAL is characterized by Fourier transform infrared (FTTR) spectrometry. Contact angle (CA) and glass transition temperature (T_g) of the film are investigated. Results show that CA and T_g of the film can be improved when the moderate amount of HPMA is introduced into the mixed monomers.
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  One-bath synthesis of hydrophilic molecularly imprinted quantum dots for selective recognition of chlorophenol

  Tai Ye, Shi Yan Lu, Qin Qin Hu, Xin Jiang, Guo Fen Wei, Jing Jing Wang, Jian Quan Lu

  中国化学快报. 2011, 22(10): 1253-1256. https://doi.org/10.1016/j.cclet.2011.03.022

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  A simple one-bath strategy has been developed to synthesize a novel CdTe@SiO₂@MIP (molecularly imprinted and silica-functionalized CdTe quantum dots, MISFQDs), in which a silica shell was coated on the surface of CdTe quantum dots (CdTe@SiO₂ QDs) and then a polymer for selective recognition of 4-chlorophenol (4-CP) was constructed on the surface of CdTe@SiO₂ QDs using mercaptoacetic acid as stabilizer, 3-aminopropyl-trimethoxysilane (APTES) as functional monomers and tetraethoxysilane (TEOS) as crosslink agent. The structures of CdTe@SiO₂@MIP were analyzed by ultraviolet-visible absorption, Fluorescence, FT-IR spectrum and powder X-ray diffraction. The application and characterization of the CdTe@SiO₂@MIP were investigated by experiments. All results indicated that the CdTe@SiO₂@MIP can selectively recognize 4-chlorophenol.
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  Preparation and near-infrared optical limiting property of fluorene-containing functional polyacetylene

  Nai Bo Lin, Yan Feng, Shan Yi Guang, Hong Yao Xu

  中国化学快报. 2011, 22(10): 1257-1260. https://doi.org/10.1016/j.cclet.2011.04.015

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  A novel functional polyacetylene containing fluorene group as a pendant, poly (2-(p-methylstyrene)-7-acetylene-9, 9-dioctyl-fluorene), was synthesized in moderate yield by[Rh (nbd)Cl]₂-Et₃N catalyst. The structures and properties of monomer and polymer were characterized and evaluated with FTIR, NMR, UV-vis, GPC and Z-scan, respectively. The results show that the incorporation of fluorene into polyacetylene has endowed the resultant polymer with well optical limiting properties for laser at wavelength 780 nm based on two-photon absorption mechanism.