Chem. Commun.

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A cation-directed two-component cascade approach to enantioenriched pyrroloindolines

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13585-13588
DOI: 10.1039/C4CC06683A, CommunicationJamie R. Wolstenhulme, Alex Cavell, Matija Gredicak, Russell W. Driver, Martin D. Smith
A chiral ammonium salt controls diastereo- and enantioselectivity in a two-component approach to the synthesis of complex pyrroloindolines.
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A hexaphenylbenzene based AIEE active probe for the preparation of ferromagnetic [small alpha]-Fe2O3 nanoparticles: facile synthesis and catalytic applications

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13533-13536
DOI: 10.1039/C4CC05460A, CommunicationSubhamay Pramanik, Vandana Bhalla, Manoj Kumar
A hexaphenylbenzene based AIEE active probe has been synthesized which serves as reactor for the preparation of ferromagnetic [small alpha]-Fe2O3 nanoparticles. These nanoparticles show excellent catalytic activity in Sonogashira coupling reactions.
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Efficient Mukaiyama aldol reaction in water with TiO4 tetrahedra on a hydrophobic mesoporous silica surface

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13473-13476
DOI: 10.1039/C4CC05711B, CommunicationHiroshi Shintaku, Kiyotaka Nakajima, Masaaki Kitano, Michikazu Hara
A new heterogeneous catalyst, hydrophobic TiO4-deposited mesoporous silica, exhibited high catalytic performance as a reusable catalyst for the Mukaiyama-aldol condensation in water without a surfactant.
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Phosphine-catalyzed [4+1] annulation of 1,3-(aza)dienes with maleimides: highly efficient construction of azaspiro[4.4]nonenes

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13506-13509
DOI: 10.1039/C4CC05624H, CommunicationMei Yang, Tianyi Wang, Shixuan Cao, Zhengjie He
A novel [4+1] annulation reaction of 1,3-(aza)dienes with non-allylic phosphorus ylides is reported for the first time.
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Multiplex detection of lung cancer cells at the single-molecule level

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13581-13584
DOI: 10.1039/C4CC06460G, CommunicationJuan Hu, Chun-yang Zhang
We develop a simple and sensitive method for multiplex detection of lung cancer cells at the single-molecule level.
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Bio-inspired enol-degradation for multipurpose oxygen sensing

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13477-13480
DOI: 10.1039/C4CC05831C, CommunicationYu-Mo Zhang, Xiaojun Wang, Wen Li, Weiran Zhang, Minjie Li, Sean Xiao-An Zhang
Inspired by the enol-degradation of luciferin, a new oxygen sensor with oppositely changed color and fluorescence has been designed, and prototype of sensor strip has been developed to practical application.
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Plasmon-assisted and visible-light induced graphene oxide reduction and efficient fluorescence quenching

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13481-13484
DOI: 10.1039/C4CC05136J, CommunicationDinesh Kumar, Sandeep Kaur, Dong-Kwon Lim
The use of plasmonic nanoparticles accelerated visible-light induced reduction of graphene oxide at room temperature.
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Mn(II)/O2-promoted oxidative annulation of vinyl isocyanides with boronic acids: synthesis of multi-substituted isoquinolines

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13485-13488
DOI: 10.1039/C4CC06427E, CommunicationHao Wang, Yang Yu, Xiaohu Hong, Bin Xu
An efficient manganese(II)/O2-promoted oxidative radical cascade reaction was developed for the modular synthesis of multi-substituted isoquinolines from easily accessible vinyl isocyanides and boronic acids.
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Synthesis and vibrational spectroscopy of 57Fe-labeled models of [NiFe] hydrogenase: first direct observation of a nickel-iron interaction

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13469-13472
DOI: 10.1039/C4CC04572F, CommunicationDavid Schilter, Vladimir Pelmenschikov, Hongxin Wang, Florian Meier, Leland B. Gee, Yoshitaka Yoda, Martin Kaupp, Thomas B. Rauchfuss, Stephen P. Cramer
Isotopically labelled Ni57Fe models of the [NiFe] hydrogenase active site have been prepared and studied with nuclear resonant vibrational spectroscopy, enabling direct characterization of metal-metal bonding.
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Enantioselective protonation of [small alpha]-hetero carboxylic acid-derived ketene disilyl acetals under chiral ionic Bronsted acid catalysis

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13489-13491
DOI: 10.1039/C4CC06081D, CommunicationDaisuke Uraguchi, Tomohito Kizu, Yuki Ohira, Takashi Ooi
P-Spiro chiral diaminodioxaphosphonium ion discriminates the enantiofaces of [small alpha]-halo and alkoxy carboxylic acid-derived ketene disilyl acetals by the recognition of the electronic difference between two substituents of the ketene disilyl acetal in the proton-transfer event.
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Photodegradable and size-tunable single-chain nanoparticles prepared from a single main-chain coumarin-containing polymer precursor

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13492-13494
DOI: 10.1039/C4CC06629D, CommunicationWeizheng Fan, Xia Tong, Qiang Yan, Shangyi Fu, Yue Zhao
A single linear polymer precursor was used to prepare photodegradable single-chain nanoparticles of variable sizes.
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A bimodal anionic MOF: turn-off sensing of CuII and specific sensitization of EuIII

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13567-13570
DOI: 10.1039/C4CC05991C, CommunicationSohini Bhattacharyya, Anindita Chakraborty, Kolleboyina Jayaramulu, Arpan Hazra, Tapas Kumar Maji
A bimodal anionic MOF is reported which acts as a turn-off CuII sensor as well as a specific EuIII sensitizer via cation exchange.
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Diselenolodiselenole: a selenium containing fused heterocycle for conjugated systems

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13454-13456
DOI: 10.1039/C4CC05439C, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Anjan Bedi, Sashi Debnath, Sanjio S. Zade
Diselenolodiselenole (C4Se4) derivatives are synthesized for the first time by heating substituted diaryl diynes with elemental selenium. The optical, electrochemical and structural properties of C4Se4-derivatives are tuned by varying end-capping aromatic substituents.
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Reversibly tunable helix inversion in supramolecular gels trigged by Co2+

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13495-13498
DOI: 10.1039/C4CC05699J, CommunicationSo Hyeon Park, Sung Ho Jung, Junho Ahn, Ji Ha Lee, Ki-Young Kwon, Jiwon Jeon, Hyungjun Kim, Justyn Jaworski, Jong Hwa Jung
Terpyridine-based ligands form octahedral complexes with Co2+ at low cation concentrations to form helical assemblies which provide a supramolecular gel framework.
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A nickel dimethyl glyoximato complex to form nickel based nanoparticles for electrocatalytic H2 production

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13514-13516
DOI: 10.1039/C4CC05355A, CommunicationStephanie Cherdo, Sanae El Ghachtouli, Marie Sircoglou, Francois Brisset, Maylis Orio, Ally Aukauloo
Mechanistic insights into the electrochemical alteration of NiII(DMGBF2)2 into Ni-based nanoparticles showing electrocatalytic HER activity are provided based on experimental and theoretical studies.
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N-Methylation of amine and nitro compounds with CO2/H2 catalyzed by Pd/CuZrOx under mild reaction conditions

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13521-13524
DOI: 10.1039/C4CC05119J, CommunicationXinjiang Cui, Yan Zhang, Youquan Deng, Feng Shi
N-Methylation of amine/nitrobenzene with CO2/H2 can be realized with up to 97% yield under mild reaction conditions catalyzed by Pd/CuZrOx.
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Thermodynamics of halogen bonded monolayer self-assembly at the liquid-solid interface

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13465-13468
DOI: 10.1039/C4CC06251E, CommunicationW. Song, N. Martsinovich, W. M. Heckl, M. Lackinger
The overall enthalpy change associated with hexabromotriphenylene monolayer self-assembly at the heptanoic acid-graphite interface was assessed by an adapted Born-Haber cycle.
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Area negative thermal expansion in a beryllium borate LiBeBO3 with edge sharing tetrahedra

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13499-13501
DOI: 10.1039/C4CC04879B, CommunicationWenjiao Yao, Xingxing Jiang, Rongjin Huang, Wei Li, Chuanjun Huang, Zheshuai Lin, Laifeng Li, Chuangtian Chen
A very rare area negative thermal expansion phenomenon is observed in LiBeBO3, attributed to its abnormal structural features.
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Substrate-induced effects in thin films of a potential magnet composed of metal-free organic radicals deposited on Si(111)

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13510-13513
DOI: 10.1039/C4CC05990E, CommunicationA. Caneschi, M. B. Casu
A derivative of the nitronyl-nitroxide radical shows homogenous growth on Si(111); under X-rays the nitronyl-nitroxide switches to the imino-nitroxide radical.
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Plasmonic biocompatible silver-gold alloyed nanoparticles

11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13559-13562
DOI: 10.1039/C4CC05297H, CommunicationGeorgios A. Sotiriou, Gion Diego Etterlin, Anastasia Spyrogianni, Frank Krumeich, Jean-Christophe Leroux, Sotiris E. Pratsinis
Nanoalloying Ag with Au minimizes nanoparticle surface oxidation and subsequent toxic Ag+ ion release rendering such nanoparticles safer for theranostic applications.
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