Chem. Commun.

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Self-healing catalysts: Co3O4 nanorods for Fischer-Tropsch synthesis

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4575-4578
DOI: 10.1039/C4CC01021C, CommunicationCun Wen, Darrius Dunbar, Xin Zhang, Jochen Lauterbach, Jason Hattrick-Simpers
We combine kinetic and spectroscopic data to demonstrate the concept of a self-healing catalyst, which effectively eliminates the need for catalyst regeneration. The observed self-healing is triggered by controlling the crystallographic orientation at the catalyst surface.
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Solvatochromic probes for detecting hydrogen-bond-donating solvents

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4579-4581
DOI: 10.1039/C4CC00805G, CommunicationRyan F. Landis, Mahdieh Yazdani, Brian Creran, Xi Yu, Vikas Nandwana, Graeme Cooke, Vincent M. Rotello
Distinguishing hydrogen bonding from polarity is possible using these solvatochromic dyes.
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Copper-mediated S-N formation via an oxygen-activated radical process: a new synthesis method for sulfonamides

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4582-4584
DOI: 10.1039/C4CC01353K, CommunicationXin Huang, Jichao Wang, Zhangqin Ni, Sichang Wang, Yuanjiang Pan
A copper-mediated direct synthesis of sulfonamides via an oxygen-activated radical process has been developed.
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Bimetallic Pd-Cu nanocrystals and their tunable catalytic properties

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4588-4591
DOI: 10.1039/C4CC01051E, CommunicationJunjie Mao, Yuxi Liu, Zheng Chen, Dingsheng Wang, Yadong Li
Monodisperse Pd-Cu nanocrystals with controlled compositions and sizes were obtained in an octadecylamine synthetic system, which exhibited tunable catalytic properties.
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Potassium-selective optical microsensors based on surface modified polystyrene microspheres

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4592-4595
DOI: 10.1039/C4CC01313A, CommunicationXiaojiang Xie, Gaston A. Crespo, Jingying Zhai, Istvan Szilagyi, Eric Bakker
Ion-selective microspheres based on surface modification of polystyrene particles (0.8 and 2.4 [small mu ]m, diameter) are presented here for the first time.
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Composite porous membranes with an ultrathin selective layer for vanadium flow batteries

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4596-4599
DOI: 10.1039/C3CC49729A, CommunicationYun Li, Xianfeng Li, Jingyu Cao, Wanxing Xu, Huamin Zhang
This work provides a simple method to fabricate composite membranes, combing excellent performance and low cost for VFB application.
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A gold-catalysed imine-propargylamine cascade sequence: synthesis of 3-substituted-2,5-dimethylpyrazines and the reaction mechanism

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4567-4570
DOI: 10.1039/C4CC01485E, CommunicationBenito Alcaide, Pedro Almendros, Jose M. Alonso, Israel Fernandez, Gonzalo Gomez-Campillos, M. Rosario Torres
The gold-catalysed coupling reaction between propargylamine-derived imines and propargylamine exclusively afforded pyrazines.
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Photocatalytic chemoselective reduction of epoxides to alkenes along with formation of ketones in alcoholic suspensions of silver-loaded titanium(IV) oxide at room temperature without the use of reducing gases

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4558-4560
DOI: 10.1039/C3CC49340G, CommunicationHiroshi Kominami, Satoshi Yamamoto, Kazuya Imamura, Atsuhiro Tanaka, Keiji Hashimoto
(2,3-Epoxypropyl)benzene was chemoselectively reduced to allylbenzene along with formation of ketones in alcoholic suspensions of a Ag-TiO2 photocatalyst.
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Controlled thioamide vs. amide formation in the thioacid-azide reaction under acidic aqueous conditions

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4603-4606
DOI: 10.1039/C4CC00774C, CommunicationMichaela Muhlberg, Kristina D. Siebertz, Brigitte Schlegel, Peter Schmieder, Christian P. R. Hackenberger
Unprecedented thioamide formation was observed for the reaction of electron-rich azides and thioacetic acid at low pH. A new mechanism was postulated.
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Tin-catalyzed conversion of biomass-derived triose sugar and formaldehyde to [small alpha]-hydroxy-[gamma]-butyrolactone

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4600-4602
DOI: 10.1039/C4CC00954A, CommunicationSho Yamaguchi, Ken Motokura, Yasuharu Sakamoto, Akimitsu Miyaji, Toshihide Baba
A novel transformation of biomass-derived triose sugar and formaldehyde into [small alpha]-hydroxy-[gamma]-butyrolactone (HBL) through the use of tin(IV) chloride.
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Ligand tuning of single-site manganese-based catalytic antioxidants with dual superoxide dismutase and catalase activity

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4607-4609
DOI: 10.1039/C4CC00758A, CommunicationMichaela Grau, Francesco Rigodanza, Andrew J. P. White, Antonio Soraru, Mauro Carraro, Marcella Bonchio, George J. P. Britovsek
A bio-inspired Mn(II) complex with a linear pentadentate ligand and an alternating NSNSN coordination displays excellent dual SOD/CAT-like antioxidant activity and good stability in aqueous environment.
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Aerobic oxidation catalysis with stable radicals

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4524-4543
DOI: 10.1039/C3CC47081D, Feature ArticleOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Qun Cao, Laura M. Dornan, Luke Rogan, N. Louise Hughes, Mark J. Muldoon
Selective oxidation reactions are challenging when carried out on an industrial scale. Many traditional methods are undesirable from an environmental or safety point of view. There is a need to develop sustainable catalytic approaches that use molecular oxygen as the terminal oxidant. This review will discuss recent advances in the use of stable radicals in aerobic oxidation catalysis.
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Catalytic activation of OKO zeolite with intersecting pores of 10- and 12-membered rings using atomic layer deposition of aluminium

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4610-4612
DOI: 10.1039/C3CC49028A, CommunicationE. Verheyen, S. Pulinthanathu Sree, K. Thomas, J. Dendooven, M. De Prins, G. Vanbutsele, E. Breynaert, J.-P. Gilson, C. E. A. Kirschhock, C. Detavernier, J. A. Martens
Atomic layer deposition of aluminium transforms the all-silica interrupted -COK-14 zeolite into an acid catalyst with a fully connected OKO framework.
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A turn-on fluorescent Fe3+ sensor derived from an anthracene-bearing bisdiene macrocycle and its intracellular imaging application

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4631-4634
DOI: 10.1039/C3CC49482A, CommunicationLin Qiu, Chengcheng Zhu, Huachao Chen, Ming Hu, Weijiang He, Zijian Guo
The reversible/instant turn-on fluorescence sensing for Fe3+ was realized via a fluorescent bisdiene macrocycle in aqueous medium, and its hydroxyethyl pendants are essential for its turn-on response.
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Anti-cancer therapeutic potential of quinazoline based small molecules via global upregulation of miRNAs

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4639-4642
DOI: 10.1039/C3CC49337G, CommunicationSmita Nahar, Debojit Bose, Sumit Kumar Panja, Satyen Saha, Souvik Maiti
Global upregulation of miRNAs mediated by quinazoline derivatives.
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Aminosilanetrithiol RSi(SH)3: an experimental and quantum-chemical study

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4628-4630
DOI: 10.1039/C4CC00912F, CommunicationYan Li, Hongping Zhu, Diego M. Andrada, Gernot Frenking, Herbert W. Roesky
An aminosilanetrithiol is experimentally and quantum-chemically studied, which is the first example of a stable molecule containing three SH groups attached to one element.
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From acetone metalation to the catalytic [small alpha]-arylation of acyclic ketones with NHC-nickel(II) complexes

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4624-4627
DOI: 10.1039/C4CC00959B, CommunicationMickael Henrion, Michael J. Chetcuti, Vincent Ritleng
Air-stable NHC-nickel(II) complexes at concentrations as low as 1 mol% exhibit high catalytic activity for the [small alpha]-arylation of acyclic ketones.
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Self-assembly of octachloroperylene diimide into 1D rods and 2D plates by manipulating the growth kinetics for waveguide applications

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4620-4623
DOI: 10.1039/C3CC49343A, CommunicationHuiying Liu, Xinqiang Cao, Yishi Wu, Qing Liao, Angel J. Jimenez, Frank Wurthner, Hongbing Fu
This communication describes the facile synthesis of Cl8-PTCDI 1D rods and 2D plates by controlling the growth kinetics, as well as their shape dependent optical waveguides.
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Analysis of the residual alignment of a paramagnetic multiheme cytochrome by NMR

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4561-4563
DOI: 10.1039/C3CC49135H, CommunicationS. E. Neto, B. M. Fonseca, C. Maycock, R. O. Louro
Agreement between the molecular alignment tensor and the combined effect of four hemes in a cytochrome, revealed by residual dipolar couplings.
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Constitutional self-selection from dynamic combinatorial libraries in aqueous solution through supramolecular interactions

8 April, 2014 - 13:54

Chem. Commun., 2014, 50,4564-4566
DOI: 10.1039/C4CC00245H, CommunicationJordi Sola, Maria Lafuente, Joan Atcher, Ignacio Alfonso
Cooperative supramolecular interactions induce the formation of a major constitution from topologically diverse dynamic combinatorial libraries of pseudopeptides in aqueous solution.
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