Chem. Commun.

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Superior electrocatalytic activity from nanodendritic structure consisting of a PtFe bimetallic core and Pt shell

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3215-3218
DOI: 10.1039/C4CC09528F, CommunicationJianbing Zhu, Meiling Xiao, Kui Li, Changpeng Liu, Wei Xing
A novel PtFe@Pt core-shell nanostructure with a PtFe bimetallic core and a nanodendrite Pt shell was fabricated through a facile aqueous reduction process.
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Expedient synthesis of 3-phenylbicyclo[1.1.1]pentan-1-amine via metal-free homolytic aromatic alkylation of benzene

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3139-3142
DOI: 10.1039/C4CC09655J, CommunicationNavanita T. Thirumoorthi, Chew Jia Shen, Vikrant A. Adsool
The inquisitiveness on the use of the BCP motif as a modern lead optimization tactic entails reliable synthetic access. In that direction, we disclose a new and versatile approach to 3-phenylbicyclo[1.1.1]pentan-1-amine, via metal-free homolytic alkylation of benzene.
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(E)-[small alpha],[small beta]-unsaturated amides from tertiary amines, olefins and CO via Pd/Cu-catalyzed aerobic oxidative N-dealkylation

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3247-3250
DOI: 10.1039/C4CC08925A, CommunicationRenyi Shi, Hua Zhang, Lijun Lu, Pei Gan, Yuchen Sha, Heng Zhang, Qiang Liu, Matthias Beller, Aiwen Lei
A novel Pd/Cu-catalyzed chemoselective aerobic oxidative N-dealkylation/carbonylation reaction has been developed for the efficient and straightforward construction of synthetically useful and bioactive (E)-[small alpha],[small beta]-unsaturated amide derivatives.
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Cucurbit[8]uril templated supramolecular ring structure formation and protein assembly modulation

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3147-3150
DOI: 10.1039/C4CC08917K, CommunicationMellany Ramaekers, Sjors P. W. Wijnands, Joost L. J. van Dongen, Luc Brunsveld, Patricia Y. W. Dankers
A multicomponent host-guest system composed of synthetic small molecules as guests in a supramolecular host shows efficient protein dimerization inhibition.
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Graphite sulphate - a precursor to graphene

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3162-3165
DOI: 10.1039/C4CC09381J, CommunicationSiegfried Eigler
Graphite sulphate is utilized as a precursor to single layers of graphene with an average density of defects of 0.06%.
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Differential reactivity of the inner and outer positions of Au25(SCH2CH2Ph)18 dimeric staples under place exchange conditions

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3204-3207
DOI: 10.1039/C4CC09252J, CommunicationPaolo Pengo, Cristian Bazzo, Mariangela Boccalon, Lucia Pasquato
The site selectivity of the place exchange reaction at the two inequivalent positions of the neutral Au25(SCH2CH2Ph)18 staples depends on the nature of the incoming thiol.
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Photo-responsive reversible assembly of gold nanoparticles coated with pillar[5]arenes

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3124-3126
DOI: 10.1039/C4CC09778E, CommunicationQizhong Zhou, Bin Zhang, Deman Han, Rener Chen, Fangli Qiu, Jiashou Wu, Hujiang Jiang
Gold nanoparticles stabilized by sulfhydryl functionalized pillar[5]arenes were successfully prepared. When they complex with anthracene derivatives on their surfaces, they can reversibly aggregate and disassemble based on photocycloaddition of anthracene.
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On-surface self-organization of a robust metal-organic cluster based on copper(I) with chloride and organosulphur ligands

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3243-3246
DOI: 10.1039/C4CC08471C, CommunicationGonzalo Otero-Irurueta, Irene Hernandez-Rodriguez, Jose I. Martinez, Rogger Palacios-Rivera, Francisco J. Palomares, Maria F. Lopez, Almudena I. Gallego, Salome Delgado, Felix Zamora, Javier Mendez, Jose A. Martin-Gago
Vacuum sublimation of a metal-organic cluster leading to supramolecular wires on surfaces.
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Ratiometric fluorescence and mesoporous structure dual signal amplification for sensitive and selective detection of TNT based on MIP@QD fluorescence sensors

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3200-3203
DOI: 10.1039/C4CC09766A, CommunicationShoufang Xu, Hongzhi Lu
MIP@QD fluorescence sensors combined with ratiometric fluorescence techniques and mesoporous silica materials for highly sensitive detection of TNT.
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Stacking interactions by two Phe side chains stabilize and orient assemblies of even the minimal amphiphilic [small beta]-sheet motif

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3154-3157
DOI: 10.1039/C4CC09673H, CommunicationZarzhitsky Shlomo, T. P. Vinod, Raz Jelinek, Hanna Rapaport
Here we demonstrate that the smallest possible motif of the amphiphilic and pleated [small beta]-strand structure can be generated using tri-peptides stabilized by [small pi]-[small pi] stacking interactions.
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Synthesis of polyfunctional secondary amines by the addition of functionalized zinc reagents to nitrosoarenes

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3239-3242
DOI: 10.1039/C4CC08846H, CommunicationVasudevan Dhayalan, Christoph Samann, Paul Knochel
Aryl, heteroaryl or adamantyl zinc reagents add in the presence of magnesium-salts and LiCl to various aryl or heteroaryl nitroso arenes producing after reductive work-up polyfunctional secondary amines.
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Microbial electrosynthesis of butyrate from carbon dioxide

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3235-3238
DOI: 10.1039/C4CC10121A, CommunicationR. Ganigue, S. Puig, P. Batlle-Vilanova, M. D. Balaguer, J. Colprim
This work proves for the first time the bioelectrochemical production of butyrate from CO2 as a sole carbon source.
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Preparation of phenanthrenes from ortho-amino-biphenyls and alkynes via base-promoted homolytic aromatic substitution

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3121-3123
DOI: 10.1039/C4CC10063H, CommunicationMarcel Hartmann, Constantin Gabriel Daniliuc, Armido Studer
Phenanthrenes are prepared from ortho-aminobiphenyls and acetylenes via base-promoted homolytic aromatic substitution.
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A novel aromatic carbocation-based coupling reagent for esterification and amidation reactions

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3131-3134
DOI: 10.1039/C4CC09539A, CommunicationThanh V. Nguyen, Demelza J. M. Lyons
Driven by aromatization: a novel tropylium-based coupling reagent has been developed to facilitate nucleophilic coupling reactions of carboxylic acids.
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Pd(0)-catalyzed chemoselective construction of spirocarbocycles via an alkyne insertion/[small beta]-naphthol dearomatization cascade

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3061-3064
DOI: 10.1039/C4CC09099C, CommunicationHuayu Zheng, Lu Bai, Jingjing Liu, Jiang Nan, Zhijun Zuo, Liu Yang, Yaoyu Wang, Xinjun Luan
A highly chemoselective route to obtain spiro[indene-1,1[prime or minute]-naphthalen]-2[prime or minute]-ones via a microwave-assisted Pd(0)-catalyzed alkyne migratory insertion/[small beta]-naphthol dearomatization cascade is described.
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Regulated protonation of polyaspartamide derivatives bearing repeated aminoethylene side chains for efficient intracellular siRNA delivery with minimal cytotoxicity

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3158-3161
DOI: 10.1039/C4CC09859E, CommunicationHui Gao, Hiroyasu Takemoto, Qixian Chen, Mitsuru Naito, Hirokuni Uchida, Xueying Liu, Kanjiro Miyata, Kazunori Kataoka
The protonation behavior of aminoethylene units in polyaspartamide side-chains was modulated for improving the delivery efficiency of siRNA-loaded polyion complexes.
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Photochemical synthesis of size-tailored hexagonal ZnS quantum dots

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3087-3090
DOI: 10.1039/C4CC09222H, CommunicationCarlos M. Gonzalez, Wei-Chen Wu, Joseph B. Tracy, Benjamin Martin
Photochemically generated ketyl radicals were employed for the synthesis of hexagonal ZnS quantum dots at room temperature.
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Observation of aliphatic C-HX hydrogen bonds in imidazolium ionic liquids

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3193-3195
DOI: 10.1039/C4CC09783A, CommunicationAlexander Khrizman, Hiu Yan Cheng, Gualberto Bottini, Guillermo Moyna
Measurement of H/D isotope effects on the 19F resonances of sequentially deuterated 1-n-butyl-3-methylimidazolium hexafluorophosphate and tetrafluoroborate isotopologues reveals the formation of aliphatic C-HX hydrogen bonds between the fluorinated anions and protons along the N-alkyl sidechains of the cations.
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Fluorescence imaging of selenol in HepG2 cell apoptosis induced by Na2SeO3

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3102-3105
DOI: 10.1039/C4CC06359G, CommunicationFanpeng Kong, Bo Hu, Yan Gao, Kehua Xu, Xiaohong Pan, Fang Huang, Qiuling Zheng, Hao Chen, Bo Tang
In order to investigate the Na2SeO3 anticancer mechanism in HepG2 cells, a novel selenol fluorescence probe has been designed and used to image selenocysteine (Sec) in living cells and in vivo.
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Salicylic acids as readily available starting materials for the synthesis of meta-substituted biaryls

7 February, 2015 - 16:54

Chem. Commun., 2015, 51,3127-3130
DOI: 10.1039/C4CC09674F, CommunicationJunfei Luo, Sara Preciado, Igor Larrosa
Salicylic acids are shown to be readily available and versatile starting materials that easily undergo a tandem arylation-protodecarboxylation process under Pd-catalysis. The corresponding meta-arylphenols can subsequently be easily transformed into a variety of meta-functionalized biaryls, highlighting the versatility of this approach to access this structural motif.
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