Royal Society of Chemistry

Photodegradable and size-tunable single-chain nanoparticles prepared from a single main-chain coumarin-containing polymer precursor

Chem. Commun. - 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

Chem. Commun. - 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

Chem. Commun. - 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+

Chem. Commun. - 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

Chem. Commun. - 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

Chem. Commun. - 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

Chem. Commun. - 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

Chem. Commun. - 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)

Chem. Commun. - 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

Chem. Commun. - 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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From metal-organic framework to carbon: toward controlled hierarchical pore structures via a double-template approach

Chem. Commun. - 11 October, 2014 - 11:17

Chem. Commun., 2014, 50,13502-13505
DOI: 10.1039/C4CC06212D, CommunicationJian-Ke Sun, Qiang Xu
For the first time, MOF-derived hierarchically porous carbons with controlled pore structures have been achieved via a double-template approach.
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Synthesis and characterisation of glucosamine-NSAID bioconjugates

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8325-8335
DOI: 10.1039/C4OB01681E, PaperRachel A. Jones, Yann Thillier, Siva S. Panda, Nicole Rivera Rosario, C. Dennis Hall, Alan R. Katritzky
Synthetic strategies to prepare non-steroidal anti-inflammatory drug-glucosamine bioconjugates.
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Synthesis of enantiomerically enriched indolines and tetrahydroisoquinolines from (S)-amino acid-derived chiral carbocations: an easy access to (3S,4R)-demethoxy-3-isopropyl diclofensine

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8318-8324
DOI: 10.1039/C4OB00922C, PaperSudipta Kumar Manna, Gautam Panda
Enantiomerically enriched indolines and tetrahydroisoquinolines were synthesized in high yields from easily accessible (S)-amino acid-derived chiral carbocations.
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Peptidomimetic inhibitors of N-myristoyltransferase from human malaria and leishmaniasis parasites

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8132-8137
DOI: 10.1039/C4OB01669F, CommunicationTayo O. Olaleye, James A. Brannigan, Shirley M. Roberts, Robin J. Leatherbarrow, Anthony J. Wilkinson, Edward W. Tate
Peptidomimetic inhibitors of N-myristoyltransferase from malaria and leishmaniasis parasites have been designed with nanomolar potency, and reveal the first direct structural evidence for a ternary NMT/CoA/myristoyl peptide product complex.
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Performance of DFT methods and origin of stereoselectivity in bipyridine N,N[prime or minute]-dioxide catalyzed allylation and propargylation reactions

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8346-8353
DOI: 10.1039/C4OB01719F, PaperDiana Sepulveda, Tongxiang Lu, Steven E. Wheeler
It is shown that many DFT methods correctly predict the stereoselectivity of bipyridine N,N[prime or minute]-dioxide catalyzed alkylation reactions despite predicting the incorrect low-lying transition state structures. A novel explanation of the origin of stereoselectivity in these reactions is also provided.
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Base-promoted annulation of [small alpha]-hydroxy ketones and dimethyl but-2-ynedioate: straightforward access to pyrano[4,3-a]quinolizine-1,4,6(2H)-triones and 2H-pyran-2,5(6H)-diones

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8128-8131
DOI: 10.1039/C4OB01858C, CommunicationHaitao He, Chaorong Qi, Yanglu Ou, Wenfang Xiong, Xiaohan Hu, Yanwei Ren, Huanfeng Jiang
A novel direct synthesis of pyrano[4,3-a]quinolizine-1,4,6(2H)-triones and 2H-pyran-2,5(6H)-diones from [small alpha]-hydroxy ketones and dimethyl but-2-ynedioate via a base-promoted cascade annulation has been developed.
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Synthesis of substituted azafluorenones from dihalogeno diaryl ketones by palladium-catalyzed auto-tandem processes

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8138-8141
DOI: 10.1039/C4OB01629G, CommunicationNada Marquise, Vincent Dorcet, Floris Chevallier, Florence Mongin
Auto-tandem processes combining either Suzuki or Heck coupling with direct cyclizing arylation are described.
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Oxidative damage of aromatic dipeptides by the environmental oxidants NO2[radical dot] and O3

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8280-8287
DOI: 10.1039/C4OB01577K, PaperL. F. Gamon, J. M. White, U. Wille
Irreversible oxidative damage at both aromatic side chains and dipeptide linkage occurs in aromatic N- and C-protected dipeptides upon exposure to the environmental pollutants NO2[radical dot] and O3.
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Enantioselective total syntheses of the proposed structures of prevezol B and evaluation of anti-cancer activity

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8239-8246
DOI: 10.1039/C4OB01662A, PaperAnna E. Leung, Riccardo Rubbiani, Gilles Gasser, Kellie L. Tuck
The first enantioselective total syntheses of the proposed structures of the natural product prevezol B are reported. This work has shown that the proposed structures of prevezol B are incorrect.
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Investigation of desilylation in the recognition mechanism to fluoride by a 1,8-naphthalimide derivative

Org. and Biomol. Chem. - 10 October, 2014 - 05:54

Org. Biomol. Chem., 2014, 12,8275-8279
DOI: 10.1039/C4OB01500B, PaperJeeun Woo, Gunwoo Kim, Kevanie Quintero, Michael P. Hanrahan, Hector Palencia, Haishi Cao
Desilylation based fluorescence sensor (AF-1) gives a dual signal for quantitative detection of F- in MeCN.
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