Chem. Commun.

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A general metal free approach to [small alpha]-ketoamides via oxidative amidation-diketonization of terminal alkynes

26 July, 2014 - 16:17

Chem. Commun., 2014, 50,9533-9535
DOI: 10.1039/C4CC03783A, CommunicationRamesh Deshidi, Manjeet Kumar, Shekaraiah Devari, Bhahwal Ali Shah
A metal free catalytic system employing TMSOTf/I2/DMSO for the oxidative amidation-diketonization of terminal alkynes, in order to produce a wide variety of [small alpha]-ketoamides, has been developed.
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An engineered co-sensitization system for highly efficient dye solar cells

26 July, 2014 - 16:17

Chem. Commun., 2014, 50,9451-9453
DOI: 10.1039/C4CC01801J, CommunicationR. Agosta, R. Grisorio, L. De Marco, G. Romanazzi, G. P. Suranna, G. Gigli, M. Manca
Novel co-sensitizers have been structurally tailored and implemented in multi-sensitized devices demonstrating synergic efficiency enhancement.
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In situ study of the growth of two-dimensional palladium dendritic nanostructures using liquid-cell electron microscopy

26 July, 2014 - 16:17

Chem. Commun., 2014, 50,9447-9450
DOI: 10.1039/C4CC03500C, CommunicationGuomin Zhu, Yingying Jiang, Fang Lin, Hui Zhang, Chuanhong Jin, Jun Yuan, Deren Yang, Ze Zhang
Based on the bubble induced thin water layer technique, we directly probe the growth of 2D palladium dendritic nanostructures using liquid cell microscopy.
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Enhanced photoelectric performance of PbS/CdS quantum dot co-sensitized solar cells via hydrogenated TiO2 nanorod arrays

26 July, 2014 - 16:17

Chem. Commun., 2014, 50,9509-9512
DOI: 10.1039/C4CC02217C, CommunicationYanli Chen, Qiang Tao, Wuyou Fu, Haibin Yang, Xiaoming Zhou, Shi Su, Dong Ding, Yannan Mu, Xue Li, Minghui Li
The enhanced photoelectric performance of quantum dot sensitized solar cells via hydrogenated TiO2 is proposed.
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Chemoselective arylation of phenols with bromo-nitroarenes: synthesis of nitro-biaryl-ols and their conversion into benzofurans and carbazoles

26 July, 2014 - 16:17

Chem. Commun., 2014, 50,9481-9484
DOI: 10.1039/C4CC03090G, CommunicationAmit Kumar, Abhimanyu Yadav, Ajay Verma, Sadhan Jana, Moh. Sattar, Shailesh Kumar, Ch. Durga Prasad, Sangit Kumar
A series of substituted phenols were chemoselectively arylated with bromo-nitroarenes using KOtBu at room temperature via an SNAr pathway.
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Stereodefined acyclic trisubstituted metal enolates towards the asymmetric formation of quaternary carbon stereocentres

24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04391J, Feature ArticleYury Minko, Ilan Marek
Formation of highly diastereo- and enantiomerically enriched quaternary stereocentres from stereodefined acyclic trisubstituted metal enolates.
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Construction of supramolecular hyperbranched polymers via the "tweezering directed self-assembly" strategy

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9477-9480
DOI: 10.1039/C4CC03158J, CommunicationYu-Kui Tian, Zhi-Shuai Yang, Xiao-Qin Lv, Ri-Sheng Yao, Feng Wang
A bis-alkynylplatinum(II) terpyridine tweezer-alkynylgold(III) diphenylpyridine guest is shown to maintain a specific complexation in the presence of a B21C7-secondary ammonium salt recognition motif, which facilitates the formation of supramolecular hyperbranched polymers via a "tweezering directed self-assembly" strategy.
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Durable defense: robust and varied attachment of non-leaching poly"-onium" bactericidal coatings to reactive and inert surfaces

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9433-9442
DOI: 10.1039/C4CC02803A, Feature ArticleJeremy Yatvin, Jing Gao, Jason Locklin
An overview of the attachment of bactericidal poly"-onium" salts to a variety of reactive and inert surfaces.
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Photoluminescent supramolecular hyperbranched polymer without conventional chromophores based on inclusion complexation

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9584-9587
DOI: 10.1039/C4CC02880E, CommunicationWenyu Li, Jiale Qu, Jianwei Du, Kefeng Ren, Youxiang Wang, Jingzhi Sun, Qiaoling Hu
A novel photoluminescent SHP without conventional chromophores was constructed by inclusion complexation, which showed wide-band fluorescence dependent upon the excitation wavelength.
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Real-time fluorescence visualization of slow tautomerization of single free-base phthalocyanines under ambient conditions

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9443-9446
DOI: 10.1039/C4CC02574A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.T. Ikeda, R. Iino, H. Noji
Defocused wide-field fluorescence microscopy visualized slow tautomerization of the emission transition dipole moment of single H2Pc at an air/glass interface.
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The facet-dependent enhanced catalytic activity of Pd nanocrystals

24 July, 2014 - 15:54

Chem. Commun., 2014, 50,9454-9457
DOI: 10.1039/C4CC02494J, CommunicationMinjune Kim, Yeonjoon Kim, Jong Wook Hong, Seihwan Ahn, Woo Youn Kim, Sang Woo Han
A systematic study of heterogeneous Buchwald-Hartwig amination using shape-controlled Pd nanocrystals with distinctly different surface facets is presented.
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Imaging, photophysical properties and DFT calculations of manganese blue (barium manganate(VI) sulphate) - a modern pigment

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC01986E, CommunicationGianluca Accorsi, Giovanni Verri, Angela Acocella, Francesco Zerbetto, Giovanni Lerario, Giuseppe Gigli, David Saunders, Rachel Billinge
Photophysical properties, DFT calculations and imaging studies of manganese blue as analytical tools to record the spatial distribution of the pigment in works of art.
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Recent advances in the catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04381B, Feature ArticleJavier Adrio, Juan C. Carretero
The scope of the catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides has been greatly expanded by the incorporation of novel types of dipolarophiles and dipole precursors. This feature article summarizes the recent development in this area.
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Pillararene-based supramolecular polymers: from molecular recognition to polymeric aggregates

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03170A, Feature ArticleChunju Li
This Feature Article covers recent research endeavors of the marriage between pillararene-based host-guest pairs and supramolecular polymeric assemblies.
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Selective photocatalytic oxidation of benzene for the synthesis of phenol using engineered Au-Pd alloy nanoparticles supported on titanium dioxide

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04024D, CommunicationRen Su, Lokesh Kesavan, Mads M. Jensen, Ramchandra Tiruvalam, Qian He, Nikolaos Dimitratos, Stefan Wendt, Marianne Glasius, Christopher J. Kiely, Graham J. Hutchings, Flemming Besenbacher
Engineered Au-Pd metal nanoparticles supported on titanium dioxide improve the selectivity of photocatalytic phenol production from the direct oxidation of benzene.
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Interview with Jackie Ying

22 July, 2014 - 15:17

Chem. Commun., 2014, 50,9032-9033
DOI: 10.1039/C4CC90235A, Profile
Jackie Ying hopes to inspire young people to pursue careers in scientific research. She shares her advice for emerging scientists and secrets to success in scientific publishing with ChemComm.
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Synthesis of nitrogen-containing ordered mesoporous carbon as a metal-free catalyst for selective oxidation of ethylbenzene

20 July, 2014 - 14:54

Chem. Commun., 2014, 50,9182-9184
DOI: 10.1039/C4CC03372H, CommunicationJia Wang, Hongyang Liu, Xianmo Gu, Haihua Wang, Dang Sheng Su
Nitrogen-containing ordered mesoporous carbon (NOMC) was synthesized by using m-aminophenol as a carbon and nitrogen co-precursor via a co-assembly process with F127 in aqueous phase and exhibited a good catalytic performance for selective oxidation of ethylbenzene.
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A general protein purification and immobilization method on controlled porosity glass: biocatalytic applications

20 July, 2014 - 14:54

Chem. Commun., 2014, 50,9134-9137
DOI: 10.1039/C4CC02605E, CommunicationK. Engelmark Cassimjee, M. Kadow, Y. Wikmark, M. Svedendahl Humble, M. L. Rothstein, D. M. Rothstein, J.-E. Backvall
Pure immobilized enzyme on an inert support is obtained in one step from the cell lysate, suitable for general application in biocatalysis.
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Synthesis of enantiomerically pure Troger's base derivatives via chiral disulfoxides

20 July, 2014 - 14:54

Chem. Commun., 2014, 50,9168-9171
DOI: 10.1039/C4CC03963G, CommunicationPavol Ondrisek, Rino Schwenk, Jan Cvengros
A facile strategy for the delivery of large quantities of enantiomerically pure 4,10-difunctionalized Troger's base derivatives has been developed.
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An unexpected copper(II)-catalyzed three-component reaction of quinazoline 3-oxide, alkylidenecyclopropane, and water

20 July, 2014 - 14:54

Chem. Commun., 2014, 50,9165-9167
DOI: 10.1039/C4CC04341C, CommunicationYuanyuan An, Danqing Zheng, Jie Wu
An unexpected copper(II)-catalyzed three-component reaction of quinazoline-N-oxide, alkylidenecyclopropane and water under mild conditions is developed, leading to N-(2-(5-oxa-6-azaspiro[2.4]hept-6-en-7-yl)phenyl)formamides in good yields.
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