Royal Society of Chemistry

Asymmetric synthesis of axially chiral anilides by Pd-catalyzed allylic substitutions with P/olefin ligands

Org. and Biomol. Chem. - 30 October, 2014 - 10:54

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01087F, PaperYilin Liu, Xiangqing Feng, Haifeng Du
Palladium-catalyzed allylic substitutions of ortho-substituted anilides using P/olefin ligands were achieved to afford chiral anilides with up to 84% ee.
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Synthesis of fully functionalized aglycone of lycoperdinoside A and B

Org. and Biomol. Chem. - 30 October, 2014 - 10:54

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01716A, PaperBalla Chandrasekhar, Sudhakar Athe, P. Purushotham Reddy, Subhash Ghosh
Synthesis of fully functionalized aglycone of lycoperdinoside A and B is achieved via Pd-catalyzed Stille-Migita cross coupling and Evans syn- and anti aldol reactions as key steps.
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Pd-catalyzed oxidative C-H alkenylation for synthesizing arylvinyltriazole nucleosides

Org. and Biomol. Chem. - 30 October, 2014 - 10:54

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01836B, PaperJingjie Tang, Mei Cong, Yi Xia, Gilles Quelever, Yuting Fan, Fanqi Qu, Ling Peng
Pd-catalyzed oxidative C-H alkenylation: an effective method for synthesizing arylvinyltriazole nucleosides in good yields and with large functional group tolerance.
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Aptamer-conjugated theranostic hybrid graphene oxide with highly selective biosensing and combined therapy capability

Faraday Disc. - 30 October, 2014 - 08:17
Faraday Discuss., 2014, Advance Article
DOI: 10.1039/C4FD00074A, PaperBhanu Priya Viraka Nellore, Avijit Pramanik, Suhash Reddy Chavva, Sudarson Sekhar Sinha, Christen Robinson, Zhen Fan, Rajashekhar Kanchanapally, Justin Grennell, Ivy Weaver, Ashton T. Hamme, Paresh Chandra Ray
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Artificial concurrent catalytic processes involving enzymes

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC07277D, Feature ArticleValentin Kohler, Nicholas J. Turner
Various aspects of simultaneous enzymatic catalysis are reviewed with an emphasis on the combination of biocatalysts with transition metal catalysts.
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Supramolecular chirality in peptide microcrystals

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05002A, CommunicationDmitry Kurouski, Joseph D. Handen, Rina K. Dukor, Laurence A. Nafie, Igor K. Lednev
VCD reveals supramolecular chirality in microcrystals of two peptide segments from human islet amyloid (IAPP, amylin). Previously such supramolecular chirality has been observed by VCD only for amyloid fibrils.
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Probing structural changes of self assembled i-motif DNA

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06824F, CommunicationIl Joon Lee, Sachin P. Patil, Karim Fhayli, Shahad Alsaiari, Niveen M. Khashab
We report an i-motif structural probing system using fluorescent Thioflavin T (ThT). This probe can discriminate the structural changes of RET and Rb i-motif sequences depending on pH change.
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A supramolecular hyperbranched polymer based on molecular recognition between benzo-21-crown-7 and secondary ammonium salt

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14666-14669
DOI: 10.1039/C4CC07171A, CommunicationHui Li, Xiaodong Fan, Wei Tian, Haitao Zhang, Wanbin Zhang, Zhen Yang
This study provides an effective strategy for preparing a crown ether-based A2-B3-type supramolecular hyperbranched polymer with stimuli-responsive behavior.
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Enantioselective synthesis of arylglycine derivatives by direct C-H oxidative cross-coupling

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC07361D, CommunicationXiao-Hong Wei, Gang-Wei Wang, Shang-Dong Yang
A new method for the synthesis of chiral [small alpha]-amino acid derivatives by enantioselective C-H arylation of N-aryl glycine esters with aryl boric acids by direct C-H oxidative cross-coupling has been performed. This work successfully integrates the direct C-H oxidation with asymmetric arylation and exhibits excellent enantioselectivity.
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Panchromatic absorbers for solar light-harvesting

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14512-14515
DOI: 10.1039/C4CC06853J, CommunicationEric J. Alexy, Jonathan M. Yuen, Vanampally Chandrashaker, James R. Diers, Christine Kirmaier, David F. Bocian, Dewey Holten, Jonathan S. Lindsey
Arrays composed of 1-4 perylene-monoimides joined to a free base porphyrin via an ethynyl linker afford panchromatic absorption (from the near-UV through the visible to the near-IR) and long-lived excited singlet states.
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Optimization of proton conductivity in graphene oxide by filling sulfate ions

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14527-14530
DOI: 10.1039/C4CC07273A, CommunicationKazuto Hatakeyama, Mohammad Razaul Karim, Chikako Ogata, Hikaru Tateishi, Takaaki Taniguchi, Michio Koinuma, Shinya Hayami, Yasumichi Matsumoto
We found that the accommodation of sulfate ions in humidified graphene oxide (GO) walled channels results in an optimized proton conductivity, which is higher than the proton conductivity of all other forms of GO.
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Two carboxyethyltin functionalized polyoxometalates for assembly on carbon nanotubes as efficient counter electrode materials in dye-sensitized solar cells

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14678-14681
DOI: 10.1039/C4CC06211F, CommunicationXiao-Jing Sang, Jian-Sheng Li, Lan-Cui Zhang, Zai-Ming Zhu, Wei-Lin Chen, Yang-Guang Li, Zhong-Min Su, En-Bo Wang
Two new POM-carboxyethyltin derivatives increased the electrocatalytic activity of single-walled carbon nanotubes toward triiodide reduction as counter electrodes in DSSCs.
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Two nanocage anionic metal-organic frameworks with rht topology and {[M(H2O)6]6}12+ charge aggregation for rapid and selective adsorption of cationic dyes

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14674-14677
DOI: 10.1039/C4CC07365G, CommunicationZhifeng Zhu, Yue-Ling Bai, Liangliang Zhang, Daofeng Sun, Jianhui Fang, Shourong Zhu
Two new rht-type anionic MOFs revealed a rapid and selective adsorption of cationic dyes and desorption in saturated NaCl aqueous solution.
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Electrochemical controlling and monitoring of halogen bond formation in solution

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14616-14619
DOI: 10.1039/C4CC04134H, CommunicationSihem Groni, Tanguy Maby-Raud, Claire Fave, Mathieu Branca, Bernd Schollhorn
Cyclic voltammetry has been used for the first time to probe and to activate non-covalent halogen bonding via redox switching in solution.
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A local proton source in a [Mn(bpy-R)(CO)3Br]-type redox catalyst enables CO2 reduction even in the absence of Bronsted acids

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14670-14673
DOI: 10.1039/C4CC05563B, CommunicationFederico Franco, Claudio Cometto, Federico Ferrero Vallana, Fabrizio Sordello, Emanuele Priola, Claudio Minero, Carlo Nervi, Roberto Gobetto
A novel bromotricarbonyl Mn(I) complex with a local proton source shows strong redox catalytic properties in acetonitrile homogeneous solution even in the absence of Bronsted acids.
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Remarkable increase in luminol electrochemiluminescence by sequential electroreduction and electrooxidation

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14662-14665
DOI: 10.1039/C4CC06633B, CommunicationXiaoyun Liu, Wenjing Qi, Wenyue Gao, Zhongyuan Liu, Wei Zhang, Ying Gao, Guobao Xu
Luminol electrochemiluminescence is dramatically increased by about five hundred times by coupling electrochemical reduction and electrochemical oxidation using simple linear sweep voltammetry, enabling sensitive detection.
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pH responsive polymersome Pickering emulsion for simple and efficient Janus polymersome fabrication

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14550-14553
DOI: 10.1039/C4CC07048H, CommunicationZhipeng Wang, Floris P. J. T. Rutjes, Jan C. M. van Hest
A versatile and easy to use method is reported for the preparation of Janus polymersomes via a Pickering emulsion strategy.
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Transformation from non- to double-interpenetration in robust Cd(II) doubly-pillared-layered metal-organic frameworks

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14543-14546
DOI: 10.1039/C4CC07112C, CommunicationHimanshu Aggarwal, Prem Lama, Leonard J. Barbour
Two known Cd(II) non-interpenetrated doubly-pillared metal organic frameworks are shown to undergo change of degree of interpenetration upon loss of lattice solvent molecules, thus resulting in doubly-interpenetrated frameworks.
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Adjusting the inter-particle spacing of a nanoparticle array at the sub-nanometre scale by thermal annealing

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14547-14549
DOI: 10.1039/C4CC06912A, CommunicationJ. Zhou, H. Liu, T. Wang, Y. Li, J. Zhang, Z. Lu, Y. Fu, F. Li
A successful attempt to fabricate nanoparticle arrays with sub-nanometre spacing by thermal annealing of the prepared nanoparticle self-assembly was made.
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Direct evidence for catalase activity of [RuV(edta)(O)]-

Chem. Commun. - 29 October, 2014 - 15:54

Chem. Commun., 2014, 50,14562-14565
DOI: 10.1039/C4CC06631F, CommunicationDebabrata Chatterjee, Namita Jaiswal, Alicja Franke, Rudi van Eldik
Reported is the first example of a ruthenium complex, RuIII(edta) (edta4- = ethylenediaminetetraacetate), which mimics catalase activity by forming compound I type species, [RuV(edta)(O)]- which reacts with another molecule of H2O2 to produce O2 in the reaction system.
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