Chem. Commun.

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Asphaltene detection using surface enhanced Raman scattering (SERS)

30 March, 2015 - 05:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C5CC00676G, CommunicationO. O. Alabi, A. N. F. Edilbi, C. Brolly, D. Muirhead, J. Parnell, R. Stacey, S. A. Bowden
Surface enhanced Raman spectroscopy using a gold substrate and excitation at 514 nm can detect sub parts per million quantities of asphaltene and thereby petroleum.
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Visible light promoted carbodifluoroalkylation of allylic alcohols via concomitant 1,2-aryl migration

30 March, 2015 - 05:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C5CC01189B, CommunicationPan Xu, Kaidong Hu, Zhangxi Gu, Yixiang Cheng, Chengjian Zhu
A novel visible light promoted carbodifluoroalkylation of allylic alcohols is disclosed.
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Improved selectivity for partial oxidation of methane to methanol in the presence of nitrite ions and BiVO4 photocatalyst

30 March, 2015 - 05:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C5CC00978B, CommunicationS. Murcia-Lopez, K. Villa, T. Andreu, J. R. Morante
Nitrite ions are shown to significantly improve the selectivity of the photocatalytic oxidation of methane to methanol.
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Zincation of 4,4-dimethyloxazoline using TMPZnCl[middle dot]LiCl. A new preparation of 2-aryloxazolines

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6415-6417
DOI: 10.1039/C5CC01144B, CommunicationDiana Haas, Maximilian S. Hofmayer, Tomke Bresser, Paul Knochel
4,4-Dimethyloxazoline is directly zincated using TMPZnCl[middle dot]LiCl and further functionalized by Pd-catalyzed cross-couplings, as well as Cu-mediated acylation and allylation reactions.
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Quantum dot display enhances activity of a phosphotriesterase trimer

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6403-6406
DOI: 10.1039/C5CC00418G, CommunicationJoyce C. Breger, Scott A. Walper, Eunkeu Oh, Kimihiro Susumu, Michael H. Stewart, Jeffrey R. Deschamps, Igor L. Medintz
Phosphotrisomerase trimer assembled on a quantum dot. This construct displays enhanced catalytic over freely diffusing enzyme and has potential to be spun into a fiber.
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An efficient computational model to predict protonation at the amide nitrogen and reactivity along the C-N rotational pathway

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6395-6398
DOI: 10.1039/C5CC01034A, CommunicationRoman Szostak, Jeffrey Aube, Michal Szostak
A computational model enabling prediction of protonation at the amide bond nitrogen atom along the C-N rotational pathway is reported.
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Facile fabrication of diphenylalanine peptide hollow spheres using ultrasound-assisted emulsion templates

30 March, 2015 - 05:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C5CC01554E, CommunicationQi Li, Hongchao Ma, Yi Jia, Junbai Li, Baohua Zhu
Unilocular and multilocular diphenylalanine peptide hollow spheres were fabricated by an ultrasound-assisted emulsion droplet template method.
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A new low-voltage plateau of Na3V2(PO4)3 as an anode for Na-ion batteries

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6381-6383
DOI: 10.1039/C5CC00944H, CommunicationZelang Jian, Yang Sun, Xiulei Ji
A low-voltage plateau at [similar]0.3 V is discovered for the deep sodiation of Na3V2(PO4)3 by combined computational and experimental studies.
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Fluorescent sensing of monofunctional platinum species

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6312-6314
DOI: 10.1039/C4CC08077G, CommunicationClara Shen, Benjamin D. W. Harris, Lucy J. Dawson, Kellie A. Charles, Trevor W. Hambley, Elizabeth J. New
A fluorescein derivative exhibits increased fluorescence selectively in response to monofunctional platinum complexes, and can be used to study the metabolism of platinum-based chemotherapeutics.
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A reusable microRNA sensor based on the electrocatalytic property of heteroduplex-templated copper nanoclusters

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6305-6307
DOI: 10.1039/C5CC01081K, CommunicationZhaoyin Wang, Ling Si, Jianchun Bao, Zhihui Dai
Repeat detection of miRNA is accomplished by reconstruction of DNA-RNA heteroduplexes-templated copper nanoclusters on an electrode surface.
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Copper-mediated ortho C-H sulfonylation of benzoic acid derivatives with sodium sulfinates

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6418-6421
DOI: 10.1039/C5CC00202H, CommunicationJidan Liu, Lin Yu, Shaobo Zhuang, Qingwen Gui, Xiang Chen, Wenduo Wang, Ze Tan
Copper-mediated direct ortho C-H bond sulfonylation of benzoic acid derivatives with sodium sulfinates was achieved by employing an 8-aminoquinoline moiety as the bidentate directing group. Various aryl sulfones were synthesized in good yields with excellent regioselectivity.
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Aggregates of silicon quantum dots as a drug carrier: selective intracellular drug release based on pH-responsive aggregation/dispersion

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6422-6425
DOI: 10.1039/C5CC00925A, CommunicationSeiichi Ohta, Kentaro Yamura, Susumu Inasawa, Yukio Yamaguchi
A novel, controlled drug-release system was developed based on aggregation/dispersion of silicon quantum dots (Si-QDs) in response to a change in the pH environment.
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Role of hydrogen-bonding and its interplay with octahedral tilting in CH3NH3PbI3

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6434-6437
DOI: 10.1039/C5CC00979K, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Jung-Hoon Lee, Nicholas C. Bristowe, Paul D. Bristowe, Anthony K. Cheetham
Computed Kohn-Sham energies as a function of torsion angle for three rotational modes of the methylammonium group in orthorhombic CH3NH3PbI3.
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Ni-Catalyzed direct 1,4-difunctionalization of [60]fullerene with benzyl bromides

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6392-6394
DOI: 10.1039/C5CC01534K, CommunicationWeili Si, Xuan Zhang, Naoki Asao, Yoshinori Yamamoto, Tienan Jin
A new Ni-catalyzed direct 1,4-difunctionalization of [60]fullerene with various benzyl bromides has been developed, leading to the 1,4-bisadducts in good to high yields and high 1,4-selectivities.
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Cp2TiCl2-catalyzed cis-hydroalumination of propargylic amines with Red-Al: stereoselective synthesis of Z-configured allylic amines

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6426-6429
DOI: 10.1039/C5CC00950B, CommunicationRenhong Sun, Jun Liu, Shuang Yang, Ming Chen, Ning Sun, Haoyi Chen, Xin Xie, Xu You, Shi Li, Yuanhong Liu
Titanium-catalyzed cis-hydroalumination of propargylic amines with Red-Al provides Z-configured allylic amines in good to excellent yields with high stereoselectivity.
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Amine-catalyzed tunable reactions of allenoates with dithioesters: formal [4+2] and [2+2] cycloadditions for the synthesis of 2,3-dihydro-1,4-oxathiines and enantioenriched thietanes

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6430-6433
DOI: 10.1039/C5CC01313E, CommunicationHai-Bin Yang, Yu-Chao Yuan, Yin Wei, Min Shi
The chemoselective [4+2] vs. [2+2] cycloaddition between allenoates and dithioesters has been developed on the basis of switching the nucleophilic amine catalyst, offering a divergent synthesis of sulfur-containing heterocycles.
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Hypervalent iodine mediated alkene difunctionalization of vinylphenols: diastereoselective synthesis of substituted indoles and indolizines

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6399-6402
DOI: 10.1039/C5CC00441A, CommunicationKai Zhang, Hang Wang, Jingfeng Zheng, Lei Yu, Hanfeng Ding
An efficient and highly diastereoselective synthesis of substituted indoles and indolizines through a hypervalent iodine mediated alkene difunctionalization reaction is described.
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Preparation of catalytic films of the Au nanoparticle-carbon composite tubular arrays

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6333-6336
DOI: 10.1039/C5CC00798D, CommunicationWei Gong, Lei Su, Xueji Zhang
Catalytic films of the AuNP-carbon composite tubular arrays prepared via a template-directed carbonization route offer the ease of recyclability.
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Stereoselective assembly of amino acid-based metal-biomolecule nanofibers

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6329-6332
DOI: 10.1039/C5CC00446B, CommunicationHong Wu, Chunyong Tian, Yufei Zhang, Chen Yang, Songping Zhang, Zhongyi Jiang
Different kinds of amino acid-based metal-biomolecule nanofibers were fabricated through a coordination-directed stereoselective assembly process.
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Salting-in effect in organic dispersions of poly(3-hexyl thiophene)-carbon-nanotubes

30 March, 2015 - 05:54

Chem. Commun., 2015, 51,6343-6345
DOI: 10.1039/C5CC00802F, CommunicationC. Bounioux, A. Bar-Hen, R. Yerushalmi-Rozen
Addition of small concentrations of different inorganic salts to THF solutions of poly(3-hexyl thiophene), which contain non-dispersed powder of Multi-Walled Carbon Nanotubes (MWNTs), was found to "salt-in" the precipitated tubes leading to the formation of a stable dispersion of the MWNTs.
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