Royal Society of Chemistry

Radical reactions of borohydrides

Org. and Biomol. Chem. - 25 November, 2014 - 17:17

Org. Biomol. Chem., 2014, 12,9733-9742
DOI: 10.1039/C4OB01784F, Review ArticleTakuji Kawamoto, Ilhyong Ryu
This review article focuses on state-of-the-art borohydride based radical reactions, also covering earlier work, kinetics and some DFT calculations with respect to the hydrogen transfer mechanism.
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Thermodynamic epimeric equilibration and crystallisation-induced dynamic resolution of lobelanine, norlobelanine and related analogues

Org. and Biomol. Chem. - 25 November, 2014 - 17:17

Org. Biomol. Chem., 2014, 12,9797-9810
DOI: 10.1039/C4OB01787K, PaperZ. Amara, G. Bernadat, P.-E. Venot, P. Retailleau, C. Troufflard, E. Drege, F. Le Bideau, D. Joseph
The step-economical synthesis of lobelanine involving a ring closing double aza-Michael (RCDAM) reaction is revisited and successfully extended to the synthesis of various configurationally more stable analogues.
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FD 178: Fluorescence axial nanotomography with plasmonics

Faraday Disc. - 25 November, 2014 - 14:54
Faraday Discuss., 2014, Accepted Manuscript
DOI: 10.1039/C4FD00198B, PaperNicholas I Cade, Gilbert Fruhwirth, Alexey V Krasavin, Tony Ng, David Richards
We present a novel imaging technique with super-resolution axial sensitivity, exploiting the changes in fluorescence lifetime above a plasmonic substrate. Using conventional confocal fluorescence lifetime imaging, we show that it...
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FD 177: In-situ characterization of Cu-Co oxides for catalytic application

Faraday Disc. - 25 November, 2014 - 14:54
Faraday Discuss., 2014, Accepted Manuscript
DOI: 10.1039/C4FD00192C, PaperZhen-Yu Tian, Henning Vieker, Patrick Mountapmbeme Kouotou, Andre Beyer
In-situ emission and absorption FTIR methods were employed to characterize the spatially resolved structure of binary Co-Cu oxides for low-temperature oxidation of CO and propene. Co-Cu oxides catalysts were controllably...
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Ni-Catalyzed [small alpha]-Arylation of Esters and Amides with Phenol Derivatives

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08426H, CommunicationEva Koch, Ryosuke Takise, Armido STUDER, Junichiro Yamaguchi, Kenichiro Itami
A nickel-catalyzed [small alpha]-arylation of esters and amides with phenol derivatives has been accomplished. In the presence of our unique nickel catalyst, prepared in situ from Ni(cod)2 and 3,4-bis(dicyclohexylphosphino)thiophene (dcypt), and...
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Isoselective 3,4-(co)Polymerization of Biorenewable Myrcene Using NSN-Ligated Rare-earth Metal Precursors: Approach to New Elastomer

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08962F, CommunicationBo Liu, Lei Li, Guangping Sun, Dongtao Liu, Shihui Li, Dongmei Cui
Polymerization of biorenewable myrcene (MY) by using the cationic [small beta]-diimidosulfonate lutetium catalyst in high activity, afforded the unprecedented isotactic 3,4-polymyrcene (PMY) with a low Tg (-42 [degree]C), based on which,...
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Role of Grafted Alkoxybenzylidene Ligand in Silica-Supported Hoveyda-Grubbs-Type Catalysts

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08627A, CommunicationJian Liang Cheong, Daniel Wong, Song-Gil Lee, Jaehong Lim, Su Seong Lee
Using both circulating flow and batch reaction systems, we explored the role of immobilized alkoxybenzylidene ligands that is to capture and stabilize the active ruthenium species. The bidentate ligands considerably...
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Stepwise combination of NH3 with BH4- in metal borohydride ammoniate

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08228A, CommunicationYuanzhou Song, Feilong Wu, Xiongfei Zheng, Xiaohua Ma, Fang Fang, Yanhui Guo
Step-wise combination of NH3 with BH4- was found proceeded on AlCl3[round bullet, filled]mNH3/nLiBH4 system. Firstly, only two N-H bonds of the NH3 groups combined with B-H bonds at low temperature. Secondly, the...
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Electrospun nanofibers-A prospective electro-active material for constructing high performance Li-ion batteries

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07824A, Feature ArticleVanchiappan Aravindan, Sundaramurthy Jayaraman, Yun-Sung Lee, Madhavi Srinivasan, Seeram Ramakrishna, P Suresh Kumar
In the present review, we describe the development of high energy density LIB fabricated with all 1D nanofibers as anode, cathode and separator-cum-electrolyte prepared by electrospinning technique without compromising the...
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Structural requirements for anti-oxidant activity of calix[n]arenes and their associated anti-bacterial activity

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08576K, CommunicationEmma K Stephens, Yannick Tauran, Anthony W Coleman, Melinda Fitzgerald
Treatment of neural cells with calix[n]arenes featuring sulphonate moieties and linked to Ag nanoparticles results in reduced reactive species. For gram+ bacteria there is an inverse correlation between anti-bacterial activity...
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Aromatic sulfonate anion-induced pseudorotaxanes: Environmentally benign synthesis, selectivity, and structural characterization

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08284B, CommunicationHanu-Yuan Gong, Feng Tang, Brett M Rambo, Rui Cao, Junfeng Xiang, Jonathan L Sessler
Anion-induced molecular threading is an emerging strategy for generating mechanically interlocked molecular architectures. Herein, we report the preparation of two pseudorotaxane structures generated from aromatic sulfonate anions and a tetraimidazolium-containing...
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Development of 3-Alkyl-6-Methoxy-7-Hydroxy-Chromone (AMHC) from Natural Isoflavones, a New Fluorescent Scaffold for Biological Imaging

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06762B, CommunicationJianzhuang Miao, Huaqing Cui, Jing Jin, Fangfang Lai, Hui Wen, Xiang Zhang, Gian Filippo Ruda, Xiao-Guang Chen, Dali Yin
Starting from 7-hydroxyisoflavones, we developed a new class of fluorescent scaffold, 3-Alkyl-6-Methoxy-7-Hydroxy-Chromone (AMHC, MW~205.19, [small lambda]ab~350 nm, [small lambda]em~450 nm) via a trial and error process. AMHCs have the advantages of being...
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Assembly of metal-organic polyhedra into highly porous frameworks for ethene delivery

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07920E, CommunicationUlrich Stoeck, Irena Senkovska, Volodymyr Bon, Simon Krause, Stefan Kaskel
Two new mesoporous Metal-Organic Frameworks (DUT-75 and DUT-76) with exceptional ethene uptake were obtained using carbazole dicarboxylate based metal-organic polyhedra as supermolecular building blocks. The compounds have a total pore...
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Coordination responsive tellurium-containing multilayer film for controlled delivery

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08588D, CommunicationHuaping Xu, Wei Cao, Lu Wang
A coordination-responsive tellurium containing film was fabricated for controlled release. The coordination chemistry between telluride molecules and cisplatin was utilized for the load of cisplatin, while competitive ligands for triggered...
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Facile Synthesis of Gold and Gold-Based Alloy Nanowire Networks Using Wormlike Micelles as Soft Template

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08549C, CommunicationXinpei Gao, Fei Lu, Bin Dong, Yizhi Liu, Yanan Gao, Liqiang Zheng
Zwitterionic wormlike micelles with AuCl4- counterions were fabricated for the first time as the soft templates for colloidal synthesis of gold nanowire networks; gold-based alloy nanowire networks were also achieved...
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Flexible thermoresponsive nanomembranes at the aqueous-air interface.

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07359B, CommunicationAshley D Cramer, Filippo Gambinossi, Erik Wischerhoff, Andre Laschewsky, Reinhard Miller, James Ferri
A synthetic pathway is described to construct thermoresponsive freestanding nanomembranes at the aqueous-air interface of a pendant drop. Dynamic control of the reaction kinetics allows formation of viscoelastic interfaces supporting...
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Heat-induced transformation of CdSe/CdS/ZnS core/multishell quantum dots by Zn diffusion into inner layers

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08647C, CommunicationAnil Ozan Yalcin, Bart Goris, Relinde J. A. van Dijk - Moes, Zhaochuan Fan, Ahmet K. Erdamar, Frans D. Tichelaar, Thijs J H Vlugt, Gustaaf Van Tendeloo, Sara Bals, Daniel Vanmaekelbergh, Henny W Zandbergen, Marijn A. van Huis
In this work, we investigate the thermal evolution of CdSe/CdS/ZnS core/multishell quantum dots (QDs) in-situ in the transmission electron microscope (TEM). Starting at a temperature of approximately 250 ⁰C, Zn...
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Solution Phase Post-modification of Trimesic Acid Network on Au(111) with Zn2+ Ions

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08621J, CommunicationJaesung Lee, Jandee Kim, Hyeran Kim, Choong Kyun Rhee, Mike Whangbo
Solution phase post-modification of trimesic acid (TMA) network on Au(111) with Zn2+ ions was found to induce a transformation of a bar-featured scanning tunneling microscopy image of (5[surd radical]3 [times] 5[surd radical]3)...
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Synthetic Studies toward Penitrem E: Enantiocontrolled Construction of B-E Rings

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08505A, CommunicationYu Yoshii, Takanori Otsu, Norihiko Hosokawa, Kiyosei Takasu, Kentaro Okano, Hidetoshi Tokuyama
Enantiocontrolled construction of B-E rings of penitrem E was accomplished from 4-iodoindole in 13 steps with an overall yield of 1.7%. Diastereoselective Tf2NH-catalyzed (2 + 2)-cycloaddition between silyl enol ether...
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Aptasensors Based on Supramolecular Structures of Nucleic Acid-Stabilized Ag Nanoclusters

Chem. Commun. - 24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08263J, CommunicationEtery Sharon, Natalie Enkin, H. Bauke Albada, Itamar Willner
Two-sized luminescent nucleic acid-functionalized Ag nanoclusters (NCs) are implemented for the analysis and multiplexed detection of adenosine monophosphate, AMP, and of cocaine using aptamer-ligand complexes.
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