Chem. Commun.

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Co-catalytic oxidative coupling of primary amines to imines using an organic nanotube-gold nanohybrid

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15251-15254
DOI: 10.1039/C4CC07951E, CommunicationDhanaji V. Jawale, Edmond Gravel, Elise Villemin, Nimesh Shah, Valerie Geertsen, Irishi N. N. Namboothiri, Eric Doris
A novel nanohybrid assembly of gold nanoparticles and polydiacetylene nanotubes was found active, in conjunction with gallacetophenone, in the catalysis of the oxidative coupling of primary amines to imines.
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Platinum nanoparticles strongly associated with graphitic carbon nitride as efficient co-catalysts for photocatalytic hydrogen evolution under visible light

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15255-15258
DOI: 10.1039/C4CC06960A, CommunicationYasuhiro Shiraishi, Yusuke Kofuji, Shunsuke Kanazawa, Hirokatsu Sakamoto, Satoshi Ichikawa, Shunsuke Tanaka, Takayuki Hirai
Pt nanoparticles loaded on g-C3N4 by the reduction at 673 K behave as efficient co-catalyst for photocatalytic H2 hydrogen evolution under visible light.
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Nuclear spin circular dichroism in fullerenes: a computational study

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15228-15231
DOI: 10.1039/C4CC07271E, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Michal Straka, Petr Stepanek, Sonia Coriani, Juha Vaara
Chemically different carbons in C70 give distinct signals in nuclear spin circular dichroism spectroscopy, a novel candidate for high-resolution identification of chemical compounds.
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Bismuth(III) benzohydroxamates: powerful anti-bacterial activity against Helicobacter pylori and hydrolysis to a unique Bi34 oxido-cluster [Bi34O22(BHA)22(H-BHA)14(DMSO)6]

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15232-15234
DOI: 10.1039/C4CC07329K, CommunicationAmita Pathak, Victoria L. Blair, Richard L. Ferrero, Michael Mehring, Philip C. Andrews
Bismuth(III) benzohydroxamates; [Bi2(HBA)3], [Bi(H-BHA)3], [Bi(HBA)(H-HBA)] and [Bi34O22(BHA)22(H-BHA)14(DMSO)6], all show exceptional toxicity towards Helicobacter pylori (MIC 0.08-3.24 [small mu ]M).
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A fluorescent ratiometric nanosized system for the determination of PdII in water

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15259-15262
DOI: 10.1039/C4CC07969H, CommunicationMassimiliano Arca, Claudia Caltagirone, Greta De Filippo, Mauro Formica, Vieri Fusi, Luca Giorgi, Vito Lippolis, Luca Prodi, Enrico Rampazzo, Mariano Andrea Scorciapino, Massimo Sgarzi, Nelsi Zaccheroni
A fluorescent chemosensor, loaded on dye-doped silica nanoparticles, can be used to detect Pd2+ ions in water with high selectivity toward other cations including the platinum group ones.
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Heterometallic cluster-based indium-organic frameworks

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15224-15227
DOI: 10.1039/C4CC07611G, CommunicationJinjie Qian, Feilong Jiang, Kongzhao Su, Jie Pan, Zhenzhen Xue, Linfeng Liang, Partha Pratim Bag, Maochun Hong
With the help of the ligand-oriented method, we have successfully embedded independent copper-based units into the indium-organic framework system for the first time, in which the Cu4I4 clusters and In3O(CO2)6 clusters coexist.
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Zipping up fullerenes into polymers using rhodium(II) acetate dimer and N(CH2CH2)2NC60 as building blocks

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15152-15155
DOI: 10.1039/C4CC06995A, CommunicationAmineh Aghabali, Marilyn M. Olmstead, Alan L. Balch
The reaction of Rh2(O2CCH3)4 with the functionalized fullerene N(CH2CH2)2NC60 can produce a linear, crystalline polymer or can trap free C60 or C70 molecules between similar chains.
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A quartz crystal microbalance method to study the terminal functionalization of glycosaminoglycans

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15148-15151
DOI: 10.1039/C4CC06905F, CommunicationDhruv Thakar, Elisa Migliorini, Liliane Coche-Guerente, Rabia Sadir, Hugues Lortat-Jacob, Didier Boturyn, Olivier Renaudet, Pierre Labbe, Ralf P. Richter
QCM-D is demonstrated as a novel method to quantify the reaction yields and stability of the reducing-end conjugation of glycosaminoglycans.
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Femtomolar level sensing of inorganic arsenic(III) in water and in living-systems using a non-toxic fluorescent probe

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15263-15266
DOI: 10.1039/C4CC05023A, CommunicationBiswajit Dey, Priyanka Mukherjee, Ranjan Kumar Mondal, Asoke Prasun Chattopadhyay, Ipsit Hauli, Subhra Kanti Mukhopadhyay, Michel Fleck
A selective femtomolar range sensing of inorganic As(III) in water and in living-systems by a non-toxic fluorescent probe which is very specific towards inorganic As(III) even in the presence of different selective cations and anions.
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A palladium-catalyzed addition reaction of aroyl/heteroaroyl acid anhydrides to norbornenes

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15267-15270
DOI: 10.1039/C4CC07759H, CommunicationMieko Arisawa, Saori Tanii, Masahiko Yamaguchi
A palladium complex derived from Pd2(dba)3 and dppp catalyzes the addition reaction of aroyl/heteroaroyl acid anhydrides to norbornenes, giving 2-aroyl/heteroaroyl-3-aroyloxy/heteroaroyloxy-bicyclo[2,2,1]heptanes.
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One-dimensional channels constructed from per-hydroxylated pillar[6]arene molecules for gas and vapour adsorption

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15209-15211
DOI: 10.1039/C4CC06591C, CommunicationTomoki Ogoshi, Ryuta Sueto, Kumiko Yoshikoshi, Tada-aki Yamagishi
We report that one-dimensional channels constructed from per-hydroxylated pillar[6]arene molecules with a diameter of 6.7 A can capture various gases, such as CO2, N2 and n-butane, and vapours of saturated hydrocarbons such as n-hexane and cyclohexane.
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Exploring a unique reactivity of N-heterocyclic carbenes (NHC) in rhodium(III)-catalyzed intermolecular C-H activation/annulation

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15159-15162
DOI: 10.1039/C4CC07170K, CommunicationDebasish Ghorai, Joyanta Choudhury
A unique directing-cum-functionalizing role of N-heterocyclic carbene (NHC) ligands is disclosed in a RhIII-catalyzed intermolecular annulation procedure.
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Hydrogen induced p-phosphonic acid calix[8]arene controlled growth of Ru, Pt and Pd nanoparticles

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15167-15170
DOI: 10.1039/C4CC06209D, CommunicationWenzhe Zang, Xianjue Chen, Ramiz A. Boulos, Jeremiah Toster, Colin L. Raston
Monodispersed noble metal nanoparticles of Ru, Pt and Pd with narrow size distributions have been produced via bubbling hydrogen through aqueous solutions of the noble metal ions in the presence of p-phosphonic acid calix[8]arene at ambient conditions.
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Cytosine-bulge-dependent fluorescence quenching for the real-time hairpin primer PCR

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15195-15198
DOI: 10.1039/C4CC06780K, CommunicationF. Takei, X. Chen, G. Yu, T. Shibata, C. Dohno, K. Nakatani
PCR progress could be monitored upon increasing the fluorescence using ligand-anchored hairpin primer.
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Extendable nickel complex tapes that reach NIR absorptions

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15140-15143
DOI: 10.1039/C4CC07353C, CommunicationHassib Audi, Zhongrui Chen, Azzam Charaf-Eddin, Anthony D'Aleo, Gabriel Canard, Denis Jacquemin, Olivier Siri
Nickel complex oligomers with tunable length allow a fine control of the absorption bands from the UV to the NIR region.
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Copper(I) 2-hydroxyethoxide-promoted cross-coupling of aryl- and alkenyldimethylsilanes with organic halides

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15156-15158
DOI: 10.1039/C4CC07371A, CommunicationTakeshi Takeda, Ryosuke Obata, Daisuke Muramatsu, Yuichiro Takeda, Akira Tsubouchi
The fluoride free cross-coupling between aryldimethylsilanes and organic halides proceeded in the presence of monocopper(I) alkoxide of ethylene glycol. The similar reaction of alkenyldimethylsilanes also took place with complete retention of configuration.
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The first calcium-catalysed Nazarov cyclisation

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15171-15174
DOI: 10.1039/C4CC06501H, CommunicationJacob Davies, Daniele Leonori
The first calcium-catalysed Nazarov cyclisation is described.
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Diastereoselective synthesis of [small alpha]-(aminomethyl)-[gamma]-butyrolactones via a catalyst-free aminolactonization

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15216-15219
DOI: 10.1039/C4CC05765A, CommunicationP. Veeraraghavan Ramachandran, Daniel R. Nicponski
An auto-catalytic domino reaction involving an aza-Michael reaction, proton transfer, and lactonization furnishing [small alpha]-aminomethyl-[gamma]-butyrolactones in near quantitative yields and excellent diastereoselectivity is described.
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Aurophilically cross-linked "dynamic" hydrogels mimicking healthy synovial fluid properties

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15199-15201
DOI: 10.1039/C4CC05735J, CommunicationPablo Casuso, Adrian Perez-San Vicente, Haizea Iribar, Araika Gutierrez-Rivera, Ander Izeta, Iraida Loinaz, German Cabanero, Hans-Jurgen Grande, Ibon Odriozola, Damien Dupin
We report a new supramolecular dynamic hydrogel, based on a new concept of reversible aurophilic cross-linker, mimicking the rheological behaviour of healthy synovial fluid at physiological conditions with good cell viability.
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Microtubes and hollow microspheres formed by winding of nanoribbons from self-assembly of tetraphenylethylene amide macrocycles

8 November, 2014 - 18:17

Chem. Commun., 2014, 50,15212-15215
DOI: 10.1039/C4CC05390G, CommunicationSong Song, Hua-Fei Zheng, Hai-Tao Feng, Yan-Song Zheng
TPE amide macrocycles formed microtubes emitting blue fluorescence in H2O-THF with 70-80% water but produced hollow microspheres emitting blue-green fluorescence in 90% or more water.
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