Chem. Commun.

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A convergent rhodium-catalysed asymmetric synthesis of tetrahydroquinolines

24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04940C, CommunicationHo Yin Li, Joachim Horn, Amanda Campbell, David House, Adam Nelson, Stephen P. Marsden
Rh-catalysed conjugate additions of 2-aminophenyl boronic acid derivatives were exploited in diastereoselective and asymmetric syntheses of tetrahydroquinolines.
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Trifluoromethylation of arenediazonium salts with fluoroform-derived CuCF3 in aqueous media

24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04930F, CommunicationAnton Lishchynskyi, Guillaume Berthon, Vladimir V. Grushin
A new protocol has been developed for trifluoromethylation of arenediazonium salts with moisture-sensitive CuCF3 (from fluoroform) in aqueous media. The reaction is governed by a radical mechanism, tolerates a broad variety of functional groups, and is applicable to the synthesis of complex, polyfunctionalized molecules.
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A four-component organogel based on orthogonal chemical interactions

24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03398A, CommunicationNicolas Luisier, Kurt Schenk, Kay Severin
A thermoresponsive organogel was obtained by orthogonal assembly of four compounds using dynamic covalent boronate ester and imine bonds, as well as dative boron-nitrogen bonds.
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Mn(III)/TEMPO-Co-Mediated Tandem Azidation/1,2-Carbon Migration Reaction of Allylic Silyl Ethers

24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04707A, CommunicationZhi-Min Chen, Zhen Zhang, Yong Qiang Tu, Ming-Hui Xu, Fu-Min Zhang, Chen-Chen Li, Shao-Hua Wang
A novel Mn(III)/TEMPO-co-mediated tandem azidation/1,2-carbon migration reaction of allylic silyl ethers with unactivated C=C bond has been explored, generating [small alpha]-aryl/alkyl [small beta]-azido ketones with an [small alpha]-quaternary stereocenter. Substrates with activated enolate-type...
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Catalyst free silica templated porous carbon nanoparticles from bio-waste materials

24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04378B, CommunicationANUJ KUMAR, Gurumurthy Hegde, SHARMA ARUNI ABDUL MANAF, NGAINI ZAINAB, KORADA V SHARMA
Porous Carbon Nanoparticles (PCNs) with well-developed microporosity were obtained from bio-waste oil palm leaves (OPL) using single step pyrolysis in nitrogen atmosphere at 500-600 oC in tube-furnace without any catalysis...
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The synthesis of organic charge transfer hetero-microtubules by crack welding

24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04602A, CommunicationJ. Kim, J. Chung, J. Hyon, T. Kwon, C. Seo, J. Nam, Y. Kang
The strain-induced cracks in organic microtubules composed of an organic charge transfer complex were selectively welded via the formation of secondary charge transfer complexes.
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Stereodefined acyclic trisubstituted metal enolates towards the asymmetric formation of quaternary carbon stereocentres

24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04391J, Feature ArticleYury Minko, Ilan Marek
Formation of highly diastereo- and enantiomerically enriched quaternary stereocentres from stereodefined acyclic trisubstituted metal enolates.
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Formation of ultra-long nanoribbons by self-assembly of carbon dots and anionic oligomers for multi-colored fluorescence and electrical conduction

24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04835K, CommunicationGuiyang Zhang, Manqing Yan, Xiyao Teng, Hong Bi, Yuyan Han, Mingliang Tian, Mingtai Wang
Ultra-long (PS-PSS)/C-dot nanoribbons (>100 [small mu ]m) have been prepared in a facile way based on self-assembly of C-dots and anionic oligomers with a multi-colored fluorescence and an electrical conductivity of 3.368 S m-1.
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Order-to-disorder structural transformation of a coordination polymer and its influence on proton conduction

24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04370G, CommunicationSatoshi Horike, Wenqian Chen, Tomoya Itakura, Munehiro Inukai, Daiki Umeyama, Hiroyuki Asakura, Susumu Kitagawa
A Cu2+ coordination framework shows order-to-disorder transformation and it is accompanied by insulator-to-protonic conductor transition.
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Construction of supramolecular hyperbranched polymers via the "tweezering directed self-assembly" strategy

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9477-9480
DOI: 10.1039/C4CC03158J, CommunicationYu-Kui Tian, Zhi-Shuai Yang, Xiao-Qin Lv, Ri-Sheng Yao, Feng Wang
A bis-alkynylplatinum(II) terpyridine tweezer-alkynylgold(III) diphenylpyridine guest is shown to maintain a specific complexation in the presence of a B21C7-secondary ammonium salt recognition motif, which facilitates the formation of supramolecular hyperbranched polymers via a "tweezering directed self-assembly" strategy.
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Durable defense: robust and varied attachment of non-leaching poly"-onium" bactericidal coatings to reactive and inert surfaces

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9433-9442
DOI: 10.1039/C4CC02803A, Feature ArticleJeremy Yatvin, Jing Gao, Jason Locklin
An overview of the attachment of bactericidal poly"-onium" salts to a variety of reactive and inert surfaces.
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Photoluminescent supramolecular hyperbranched polymer without conventional chromophores based on inclusion complexation

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9584-9587
DOI: 10.1039/C4CC02880E, CommunicationWenyu Li, Jiale Qu, Jianwei Du, Kefeng Ren, Youxiang Wang, Jingzhi Sun, Qiaoling Hu
A novel photoluminescent SHP without conventional chromophores was constructed by inclusion complexation, which showed wide-band fluorescence dependent upon the excitation wavelength.
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Real-time fluorescence visualization of slow tautomerization of single free-base phthalocyanines under ambient conditions

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9443-9446
DOI: 10.1039/C4CC02574A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.T. Ikeda, R. Iino, H. Noji
Defocused wide-field fluorescence microscopy visualized slow tautomerization of the emission transition dipole moment of single H2Pc at an air/glass interface.
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The facet-dependent enhanced catalytic activity of Pd nanocrystals

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9454-9457
DOI: 10.1039/C4CC02494J, CommunicationMinjune Kim, Yeonjoon Kim, Jong Wook Hong, Seihwan Ahn, Woo Youn Kim, Sang Woo Han
A systematic study of heterogeneous Buchwald-Hartwig amination using shape-controlled Pd nanocrystals with distinctly different surface facets is presented.
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Protein Assembly Mediated by Sulfonatocalix[4]arene

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04897K, CommunicationRoise E. McGovern, Andrew A. McCarthy, Peter B. Crowley
A crystal structure of lysozyme in complex with p-sulfonato-calix[4]arene (sclx4) reveals a linear assembly of protein tetramers glued together by protein-calixarene interactions. One interaction involves encapsulation of the highly exposed...
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19F NMR indicator displacement assay using a synthetic receptor with appended paramagnetic relaxation agent

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04159C, CommunicationAdam Plaunt, Kasey J Clear, BD Smith
An admixture of zinc(II)-bis(dipicolylamine) receptor with covalently attached paramagnetic relaxation agent and fluorine-labeled phosphate indicator enables 19F NMR detection of phosphorylated analytes with amplified switched-on signal intensity.
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A Designer Peptide as a Template for Growing Au Nanoclusters

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03240C, CommunicationRoberto de la Rica, Lesley Chow, Christine-Maria Horejs, Manuel Mazo, Ciro Chiappini, Eugene Thomas Pashuck, Ronit Bitton, Molly M. Stevens
A peptide was designed to generate a sub-nanometric template that guides the growth of fluorescent gold nanoclusters. The peptide was endorsed with nucleating moieties and a three-dimensional structure that arrests...
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Threaded macromolecules as a versatile framework for biomaterials

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03709J, Feature ArticleAtsushi Tamura, Nobuhiko Yui
In this feature article, the recent progress in biomaterial application of threaded macromolecules including polyrotaxanes such as drug delivery and gene delivery is described.
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Guest-induced supramolecular chirality in a ditopic azoprobe-cyclodextrin complex in water

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04227A, CommunicationKentaro Nonaka, Mai Yamaguchi, Masashi Yasui, Shoji Fujiwara, Takeshi Hashimoto, Takashi Hayashita
The novel supramolecular sensors induced by the clockwise twisted structures due to multi-point recognition in water.
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A Novel Single-Side Azobenzene-Grafted Anderson-Type Polyoxometalate for Recognition-Induced Chiral Migration

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04442H, CommunicationLixin Wu, Bin Zhang, Liang Yue, Yang Wang, Yang Yang
A three-component supramolecular hybrid system based on host-guest recognition and electrostatic interaction has been realized for consecutive chiral transfer from an alpha-cyclodextrin to cationic dyes via the bridge of a...
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