Chem. Commun.

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4-Phosphothiophen-2-yl alanine: a new 5-membered analogue of phosphotyrosine

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03393K, CommunicationMatthew Lilley, Bezaleel Mambwe, Richard F. W. Jackson, Richmond Muimo
Polyclonal antibodies raised against 4-phosphothiophen-2-yl alanine showed high selectivity for phosphotyrosine and no cross-reactivity with other phosphorylated amino acids.
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Fluoro-glycosyl acridinones are ultra-sensitive active site titrating agents for retaining [small beta]-glycosidases

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03299C, CommunicationTianmeng Duo, Ethan D. Goddard-Borger, Stephen G. Withers
Stoichiometric release of one equivalent of a fluorophore allows accurate quantitation of glycosidases down to low nanomolar concentrations.
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4-Halogeno-sydnones for fast strain promoted cycloaddition with bicyclo-[6.1.0]-nonyne

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03816A, CommunicationLucie Plougastel, Oleksandr Koniev, Simon Specklin, Elodie Decuypere, Christophe Creminon, David-Alexandre Buisson, Alain Wagner, Sergii Kolodych, Frederic Taran
4-Halogeno-sydnones were found to be efficient dipole partners for the strain promoted click reaction with bicyclo-[6.1.0]-nonyne. This bioorthogonal reaction has been applied to protein labeling.
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A low bandgap asymmetrical squaraine for high-performance solution-processed small molecule organic solar cells

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03831B, CommunicationDaobin Yang, Qianqian Yang, Lin Yang, Qian Luo, Yao Chen, Youqin Zhu, Yan Huang, Zhiyun Lu, Suling Zhao
A low-bandgap asymmetrical squaraine ASQ-5 bearing an indoline substituent for solution-processed organic solar cells with high Jsc and PCE was synthesized.
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Efficient metal-free hydrosilylation of tertiary, secondary and primary amides to amines

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02894E, CommunicationEnguerrand Blondiaux, Thibault Cantat
Hydrosilylation of secondary and tertiary amides to amines is described using catalytic amounts of B(C6F5)3. The organic catalyst enables the reduction of amides with cost-efficient, non-toxic and air stable PMHS and TMDS hydrosilanes. The methodology was successfully extended to the more challenging reduction of primary amides.
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Biomimetic oxidation of pyrene and related aromatic hydrocarbons. Unexpected electron accepting abilities of pyrenequinones

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04026K, CommunicationAlejandro Lopez-Moreno, David Clemente-Tejeda, Joaquin Calbo, Atena Naeimi, Francisco A. Bermejo, Enrique Orti, Emilio M. Perez
We present a mild catalytic method to oxidize PAHs and, in particular, pyrene, and we characterize the electron accepting abilities of pyrenequinones both in gas phase and in solution.
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Total synthesis of securinega alkaloids (-)-norsecurinine, (-)-niruroidine and (-)-flueggine A

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02575J, CommunicationNan Ma, Yiwu Yao, Bing-Xin Zhao, Ying Wang, Wen-Cai Ye, Sheng Jiang
A consecutive synthetic strategy was developed toward the total synthesis of (-)-norsecurinine, (-)-niruroidine and (-)-flueggine A.
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A boronate-based fluorescent probe for the selective detection of cellular peroxynitrite

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02943G, CommunicationJiyoung Kim, Jeesook Park, Hawon Lee, Yongdoo Choi, Youngmi Kim
A boronate-based fluorescent probe 1 for the selective monitoring of intracellular peroxynitrite has been developed. The probe takes advantage of the fast reaction of an arylboronate group with peroxynitrite, yielding a corresponding phenol that undergoes spontaneous subsequent reactions to produce a strongly fluorescent product associated with a large turn-on signal.
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A phosphomolybdic acid anion probe-based label-free, stable and simple electrochemical biosensing platform

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03555K, CommunicationTianxiang Wei, Yuyun Chen, Wenwen Tu, Yaqian Lan, Zhihui Dai
A versatile label-free, stable, low-cost and simple electrochemical biosensing platform has been developed based on a phosphomolybdic acid anion probe by jointly taking advantages of its native electronegativity, electrochemical activity and chemisorption with graphene oxide.
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First observation of enhanced luminescence from single lanthanide chelates on silver nanorods

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03495C, CommunicationJian Zhang, Krishanu Ray, Yi Fu, Joseph R. Lakowicz
Largely enhanced luminescence of europium chelates on silver nanorods makes a single lanthanide dye detectable on a confocal microscope.
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An expedient approach to pyrrolo[3,2-c]quinolines via regioselective formation of the pyrrole nucleus over indoles

10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8526-8528
DOI: 10.1039/C4CC02466D, CommunicationManjusha V. Karkhelikar, Rajeev R. Jha, B. Sridhar, Pravin R. Likhar, Akhilesh K. Verma
The regioselective synthesis of pyrrolo[3,2-c]quinolines from protected 2-alkynylanilines by Heck and intramolecular Michael addition has been described.
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Two-dimensional supramolecular spring: coordination driven reversible extension and contraction of bridged half rings

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02120G, CommunicationDapeng Luo, Xuemei Zhang, Yongtao Shen, Jing Xu, Lijin Shu, Qingdao Zeng, Chen Wang
A tetraethylene glycol ether bridged derivative 9 has been designed and synthesized, and its two-dimensional (2D) self-assembled behavior has been investigated at the single-molecule level.
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Catalytic carbene transfer allows the direct customization of cyclic purine dinucleotides

10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8499-8502
DOI: 10.1039/C4CC01919A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Na Fei, Daniel Haussinger, Seraina Blumli, Benoit-Joseph Laventie, Lorenzo D. Bizzini, Kaspar Zimmermann, Urs Jenal, Dennis Gillingham
We describe a simple method for the direct modification of nucleobases in cyclic purine dinucleotides, important signalling molecules in both prokaryotes and eukaryotes.
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Adsorption and reaction of sub-monolayer films of an ionic liquid on Cu(111)

10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8601-8604
DOI: 10.1039/C4CC03203A, CommunicationBenedikt Uhl, Florian Buchner, Stephan Gabler, Maral Bozorgchenani, R. Jurgen Behm
The reactive interaction of the ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide [BMP][TFSA] with Cu(111) was investigated by scanning tunnelling microscopy (STM) and X-ray photoelectron spectroscopy (XPS) under ultrahigh vacuum (UHV) conditions.
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An acyl-SAM analog as an affinity ligand for identifying quorum sensing signal synthases

10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8586-8589
DOI: 10.1039/C4CC03094J, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Kenji Kai, Hiroki Fujii, Rui Ikenaka, Mitsugu Akagawa, Hideo Hayashi
We here report the affinity purification of N-acylhomoserine lactone synthases using beads conjugated with an enzyme inhibitor, which was designed based on the catalytic intermediate acyl-SAM.
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Dendrimeric tetravalent ligands for the serotonin-gated ion channel

10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8582-8585
DOI: 10.1039/C4CC02502D, CommunicationMarco Paolino, Laura Mennuni, Germano Giuliani, Maurizio Anzini, Marco Lanza, Gianfranco Caselli, Chiara Galimberti, Maria Cristina Menziani, Alessandro Donati, Andrea Cappelli
The paper describes an approach to multivalency in the 5-HT3 receptor through the synthesis of a tetravalent ligand showing picomolar affinity.
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A covalent polyoxomolybdate-based hybrid with remarkable electron reservoir properties

10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8575-8577
DOI: 10.1039/C4CC03779K, CommunicationCorentin Rinfray, Severine Renaudineau, Guillaume Izzet, Anna Proust
The molybdenum core confers enhanced redox properties to a hybrid POM platform, which are further improved in the presence of acid.
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One-pot synthesis of fluorescent BSA-Ce/Au nanoclusters as ratiometric pH probes

10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8571-8574
DOI: 10.1039/C4CC03949A, CommunicationYa-Na Chen, Po-Cheng Chen, Chia-Wei Wang, Yu-Shen Lin, Chung-Mao Ou, Lin-Chen Ho, Huan-Tsung Chang
BSA-Ce/Au NCs as ratiometric pH sensors: the fluorescence intensities of BSA-Ce/Au NCs at 410 and 650 nm are pH dependent and independent, respectively. HeLa cell images of the BSA-Ce/Au NCs at various pH values are displayed.
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A fast and selective probe for monitoring Pd2+ in aqueous medium via the dual-optical readout

10 July, 2014 - 12:17

Chem. Commun., 2014, 50,8488-8490
DOI: 10.1039/C4CC03891F, CommunicationAnup Kumar, Megha Chhatwal, Alok Kumar Singh, Vikram Singh, Manoj Trivedi
A fast, selective and regenerative probe for real-time monitoring of ppm levels of Pd2+ in aqueous medium has been demonstrated.
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Sodium borohydride treatment: a simple and effective process for the removal of stabilizer and capping agents from shape-controlled palladium nanoparticles

10 July, 2014 - 12:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02747G, CommunicationNaresh Nalajala, Wasim Feroze Gooty Saleha, Bradley P. Ladewig, Manoj Neergat
Using the hydride formation property of Pd for the removal of strongly-adsorbed impurities from nanoparticle surfaces.
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