Chem. Commun.

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Photobiocatalytic decarboxylation for olefin synthesis

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1918-1921
DOI: 10.1039/C4CC07276F, CommunicationIoannis Zachos, Sarah Katharina Ga[German sz ligature}meyer, Daniel Bauer, Volker Sieber, Frank Hollmann, Robert Kourist
The oxidative decarboxylation of fatty acids to terminal alkenes was accomplished with high selectivity by combining a fatty acid decarboxylase OleTJE with the light-catalyzed generation of the cosubstrate hydrogen peroxide, resulting in a simple and efficient system for the light-driven cleavage of C-C bonds.
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Thyminate(2-)-bridged cyclic tetranuclear rhodium(III) complexes formed by a template of a sodium, calcium or lanthanoid ion

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1889-1892
DOI: 10.1039/C4CC09087J, CommunicationAyana Kashima, Mika Sakate, Hiromi Ota, Akira Fuyuhiro, Yukinari Sunatsuki, Takayoshi Suzuki
In the homochirally aggregated tetranuclear Cp*RhIII complexes, the bridging mode of thyminate(2-) was dependent on the template cation: [small mu ]3-1[small kappa]N1:2[small kappa]2N3,O2:3[small kappa]O2 in the Na+ and Ca2+ complexes and [small mu ]3-1[small kappa]N1:2[small kappa]2N3,O4:3[small kappa]O2 in the Ln3+ analogues.
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One-step growth of well-aligned TiO2 nanorod arrays for flexible dye-sensitized solar cells

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1945-1948
DOI: 10.1039/C4CC09083G, CommunicationXiaoxu Chen, Qunwei Tang, Zhiyuan Zhao, Xinghui Wang, Benlin He, Liangmin Yu
Well-aligned TiO2 nanorod arrays were synthesized by a dc reactive magnetron sputtering strategy for flexible DSSCs, yielding an efficiency of 5.3% in comparison with 1.2% for the cell with traditional TiO2 nanoparticles fabricated by a low-temperature process.
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The facile surface chemical modification of a single glass nanopore and its use in the nonenzymatic detection of uric acid

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1914-1917
DOI: 10.1039/C4CC09185J, CommunicationHaili He, Xiaolong Xu, Ping Wang, Lizhen Chen, Yongdong Jin
A single glass nanopore was modified with gold through a facile chemical method and used for the non-enzymatic detection of uric acid.
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Plasmon induced self-assembly of gold nanorods in polymer films

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1911-1913
DOI: 10.1039/C4CC08261C, CommunicationDaniela T. Marquez, Juan C. Scaiano
Photoactivated orientation of gold nanorods (AuNRs) incorporated into polymethylmethacrylate and SU-8 photoresist films occurs under red light activation.
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A new strategy for synthesis of porous magnetic supraparticles with excellent biodegradability

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1908-1910
DOI: 10.1039/C4CC07985J, CommunicationDian Li, Yuting Zhang, Meng Yu, Qiao An, Jia Guo, Jennifer Q. Lu, Changchun Wang
Porous biodegradable magnetic supraparticles with surface area up to 285.4 m2 g-1 have been fabricated by a one-step etching method.
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Construction of tetralin skeletons based on rhodium-catalysed site-selective ring opening of benzocyclobutenols

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1882-1885
DOI: 10.1039/C4CC09327E, CommunicationNaoki Ishida, Norikazu Ishikawa, Shota Sawano, Yusuke Masuda, Masahiro Murakami
A rhodium complex induces site-selective alkene insertion into the C(sp2)-C(sp3) bond of benzocyclobutenols to furnish tetralins diastereoselectively.
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Palladium-catalyzed oxidative carbonylation of hydrazides: synthesis of 1,3,4-oxadiazol-2(3H)-ones

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1905-1907
DOI: 10.1039/C4CC08731C, CommunicationYu Wang, Xu Meng, Yuting Yang, Lutao Zhang, Shuaibo Guo, Dong Tang, Yaxuan Li, Baohua Chen
A novel palladium-catalyzed oxidative carbonylation reaction was developed via the carbon monoxide insertions between the amine group and the carbonyl group to realize the intramolecular cyclization, which provides efficient access to 1,3,4-oxadiazol-2(3H)-ones with a wide range of substrates under mild conditions, resulting in good to excellent yields.
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Trapping bound water within a polymer electrolyte membrane of calcium phosphotungstate for efficient CO2 capture

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1901-1904
DOI: 10.1039/C4CC09021G, CommunicationYifan Li, Qingping Xin, Shaofei Wang, Zhizhang Tian, Hong Wu, Ye Liu, Zhongyi Jiang
Calcium phosphotungstate is utilized to fabricate a polymer electrolyte membrane for the first time. The strong hygroscopicity of both Ca2+ and PW12O403- is found to "trap" bound water within the membrane, resulting in an appealing CO2 capture performance.
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Efficient photochemical water oxidation by a dinuclear molecular ruthenium complex

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1862-1865
DOI: 10.1039/C4CC08606F, CommunicationTanja M. Laine, Markus D. Karkas, Rong-Zhen Liao, Torbjorn Akermark, Bao-Lin Lee, Erik A. Karlsson, Per E. M. Siegbahn, Bjorn Akermark
A dinuclear Ru complex housing an anionic ligand scaffold has been developed. The designed Ru complex was found to efficiently mediate the photochemical oxidation of H2O when using [Ru(bpy)3]2+-type photosensitizers.
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Diboron as a reductant for nickel-catalyzed reductive coupling: rational design and mechanistic studies

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1850-1853
DOI: 10.1039/C4CC08703H, CommunicationGuoying Zhang, Yinjun Xie, Zhengkun Wang, Yang Liu, Hanmin Huang
Diboron (B2pin2) has been identified as an efficient and environmentally benign reducing reagent for reductive coupling reactions for the first time, which enables the nickel-catalyzed reductive tetramerization of alkynes to be performed with high efficiency in the presence of formal substoichiometric amounts of (0.3 equiv.) the reductant.
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The facile preparation of a cobalt disulfide-reduced graphene oxide composite film as an efficient counter electrode for dye-sensitized solar cells

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1846-1849
DOI: 10.1039/C4CC08288E, CommunicationLijuan Sun, Yu Bai, Naiqing Zhang, Kening Sun
A CoS2-RGO composite film counter electrode was prepared by combining the layer by layer assembly method and thermal treatment process.
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Concise synthesis of cyclic carbonyl compounds from haloarenes using phenyl formate as the carbonyl source

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1854-1857
DOI: 10.1039/C4CC09413A, CommunicationHideyuki Konishi, Hiroki Nagase, Kei Manabe
Carbonylative cyclization of haloarenes bearing nucleophilic moieties under Pd catalysis has been developed as a general, user-friendly method for access to various cyclic carbonyl compounds.
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Detection of oligomers and fibrils of [small alpha]-synuclein by AIEgen with strong fluorescence

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1866-1869
DOI: 10.1039/C4CC07911F, CommunicationChris Wai Tung Leung, Feng Guo, Yuning Hong, Engui Zhao, Ryan Tsz Kin Kwok, Nelson Lik Ching Leung, Sijie Chen, Nishant N. Vaikath, Omar Mukhtar El-Agnaf, Youhong Tang, Wei-Ping Gai, Ben Zhong Tang
Fluorescent probe, TPE-TPP, can differentiate monomeric, oligomeric and fibrillar [small alpha]-synuclein which was previously difficult to achieve.
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Graphene mediated self-assembly of fullerene nanorods

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1858-1861
DOI: 10.1039/C4CC09362C, CommunicationTony J. Gnanaprakasa, Deepak Sridhar, Warren J. Beck, Keith Runge, Barrett G. Potter, Thomas J. Zega, Pierre A. Deymier, Srini Raghavan, Krishna Muralidharan
A simple procedure for solution-based self-assembly of C60 fullerene nanorods on graphene substrates is presented.
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Switching adhesion and friction by light using photosensitive guest-host interactions

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1830-1833
DOI: 10.1039/C4CC09204J, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Johanna Blass, Bianca L. Bozna, Marcel Albrecht, Jennifer A. Krings, Bart Jan Ravoo, Gerhard Wenz, Roland Bennewitz
Friction and adhesion between two [small beta]-cyclodextrin functionalized surfaces can be switched reversibly by external light stimuli. The interaction is mediated by complexation with ditopic azobenzene guest molecules.
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Stable dispersions of azide functionalized ferromagnetic metal nanoparticles

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1826-1829
DOI: 10.1039/C4CC06126H, CommunicationC. J. Hofer, V. Zlateski, P. R. Stoessel, D. Paunescu, E. M. Schneider, R. N. Grass, M. Zeltner, W. J. Stark
Stable dispersions of azide functionalized ferromagnetic metal nanoparticles were synthesized by covalent attachment of a block-copolymer to the nanoparticles surface via SI-ATRP and subsequent post-modification.
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Cu-Catalyzed selective C3-formylation of imidazo[1,2-a]pyridine C-H bonds with DMSO using molecular oxygen

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1823-1825
DOI: 10.1039/C4CC09134E, CommunicationHua Cao, Sai Lei, Naiying Li, Longbin Chen, Jingyun Liu, Huiyin Cai, Shuxian Qiu, Jingwen Tan
Using the widely available DMSO as the formylation reagent under oxidative conditions, an efficient Cu-catalyzed C3-formylation reaction of imidazo [1,2-a]pyridine C-H bonds to directly generate structurally sophisticated 3-formyl imidazo[1,2-a]pyridine derivatives has been developed.
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Controlled and sustained release of pharmaceuticals via single step solvent-free encapsulation

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1838-1841
DOI: 10.1039/C4CC08151J, CommunicationA. Cavallaro, K. Vasilev
Herein, we report a novel and solvent-free technique for the encapsulation of pharmaceuticals that allows achieving controllable release rates.
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Topological ring-currents and bond-currents in the altan-[r,s]-coronenes

20 January, 2015 - 13:17

Chem. Commun., 2015, 51,1819-1822
DOI: 10.1039/C4CC07322C, CommunicationT. K. Dickens, R. B. Mallion
[small pi]-Electron ring-currents for the altans of the four regular [r,s]-coronenes are calculated by the topological HLPM approach.
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