Chem. Commun.

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A Hg(II)-mediated "signal-on" electrochemical glutathione sensor

6 July, 2014 - 11:17

Chem. Commun., 2014, 50,8385-8387
DOI: 10.1039/C4CC03329A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Hamid R. Lotfi Zadeh Zhad, Rebecca Y. Lai
We report the design and fabrication of a DNA-based electrochemical sensor for detection of glutathione. Sensor signaling relies on glutathione's ability to chelate mercury Hg(II), displacing it from the thymine-Hg(II)-thymine complex formed between the surface-immobilized DNA probes. Our results show that this sensor is sensitive and selective enough to be employed in saliva.
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Nanovalve activation by surface-attached photoacids

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8388-8390
DOI: 10.1039/C4CC03293D, CommunicationT. M. Guardado-Alvarez, M. M. Russell, J. I. Zink
Proton transfer caused by excitation of a photoacid attached to the surface of a mesoporous silica nanoparticle activates a nanovalve and causes release of trapped molecules.
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Mechanistic investigation of the selective reduction of Meldrum's acids to [small beta]-hydroxy acids using SmI2 and H2O

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8391-8394
DOI: 10.1039/C4CC03216K, CommunicationMichal Szostak, Sarah E. Lyons, Malcolm Spain, David J. Procter
The mechanism of the mono-reduction of Meldrum's acids to [small beta]-hydroxy acids employing SmI2-H2O has been elucidated.
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A copper-mediated oxidative N-cyanation reaction

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8412-8415
DOI: 10.1039/C4CC03439B, CommunicationFan Teng, Jin-Tao Yu, Yan Jiang, Haitao Yang, Jiang Cheng
Copper-promoted N-cyanation of aliphatic sec-amine by CuCN is achieved via oxidative coupling.
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The synthesis and structure of [Zn(TEMPO)2]2 and [Zn([small mu ]-H)([small mu ]2-[small eta]1:[small eta]1-TEMPO)]6

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8395-8397
DOI: 10.1039/C4CC03256J, CommunicationPhillip Jochmann, Douglas W. Stephan
The commercially available radical TEMPO (2,2,6,6-tetramethylpiperidin-1-yloxy) reacts with [ZnCp*2] (1) to yield the homoleptic compound [Zn(TEMPO)2]2 (2) through coupling of two Cp* radicals. Compound 1 reacts with H2 to afford the hydride complex [Zn([small mu ]-H)([small mu ]2-[small eta]1-[small eta]1-TEMPO)]6 (3) featuring a planar Zn6H6 ring in the solid state.
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The direct synthesis of N-alkylated amides via a tandem hydration/N-alkylation reaction from nitriles, aldoximes and alcohols

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8303-8305
DOI: 10.1039/C4CC02742F, CommunicationNana Wang, Xiaoyuan Zou, Juan Ma, Feng Li
A novel strategy for the direct synthesis of N-alkylated amides from nitriles, aldoximes and alcohols was proposed and accomplished in the presence of a Cp*Ir complex.
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Coordination reaction between tetraphenylporphyrin and nickel on a TiO2(110) surface

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8291-8294
DOI: 10.1039/C4CC02919D, CommunicationCici Wang, Qitang Fan, Shanwei Hu, Huanxin Ju, Xuefei Feng, Yong Han, Haibin Pan, Junfa Zhu, J. Michael Gottfried
Reaction of tetraphenylporphyrin with nickel on TiO2(110) results in the formation of nickel(II)-tetraphenylporphyrin and a 45[degree] rotation of the molecule.
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The morphology transformation from helical nanofiber to helical nanotube in a diarylethene self-assembly system

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8335-8338
DOI: 10.1039/C4CC02580F, CommunicationYulong Duan, Shihai Yan, Xinhong Zhou, Wei Xu, Hongxia Xu, Zhihong Liu, Lixue Zhang, Chuanjian Zhang, Guanglei Cui, Lishan Yao
Two helical nanostructures, helical nanofibers and helical nanotubes, are self-assembled from a diarylethene compound.
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Pyridyl-cyclodextrin for ultra-hydrosolubilization of [60]fullerene

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8339-8342
DOI: 10.1039/C4CC02049A, CommunicationKazuyuki Nobusawa, Debabrata Payra, Masanobu Naito
An efficient hydrosolubilizing reagent for [60]fullerene (C60) was developed with a [gamma]-cyclodextrin ([gamma]-CD) derivative having triazole-methoxypyridyl moieties at its 6-hydroxyl positions (PCD).
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Contamination-free solutions of selenium in amines for nanoparticle synthesis

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8331-8334
DOI: 10.1039/C4CC02379J, CommunicationB. C. Walker, R. Agrawal
Selenium is solubilized in only amine through the addition and subsequent removal of a volatile thiol to produce pure selenide nanoparticles.
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A novel method for photolithographic polymer shadow masking: toward high-resolution high-performance top-contact organic field effect transistors

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8328-8330
DOI: 10.1039/C4CC01932F, CommunicationDeyang Ji, Longfeng Jiang, Lang Jiang, Xiaolong Fu, Huanli Dong, Junsheng Yu, Wenping Hu
The present work shows a novel method to prepare polymer-based masks called photolithographic polymer shadow masking and its application in the process of fabricating top-contact high-resolution OFETs.
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Biomass derived furfural-based facile synthesis of protected (2S)-phenyl-3-piperidone, a common intermediate for many drugs

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8324-8327
DOI: 10.1039/C4CC02645D, CommunicationP.-F. Koh, P. Wang, J.-M. Huang, T.-P. Loh
The efficient conversion of rice straw into a key intermediate to access various drugs has been developed.
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A trinuclear Zn3(OAc)4-3,3[prime or minute]-bis(aminoimino)binaphthoxide complex for highly efficient catalytic asymmetric iodolactonization

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8287-8290
DOI: 10.1039/C4CC02415J, CommunicationTakayoshi Arai, Noriyuki Sugiyama, Hyuma Masu, Sayaka Kado, Shinnosuke Yabe, Masahiro Yamanaka
Using a harmony of the tri-zinc atoms, 1 mol% Zn3(OAc)4-3,3[prime or minute]-bis(aminoimino)binaphthoxide catalyzed asymmetric iodolactonization in up to 99.9% ee.
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Beyond yolk-shell nanostructure: a single Au nanoparticle encapsulated in the porous shell of polymer hollow spheres with remarkably improved catalytic efficiency and recyclability

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8295-8298
DOI: 10.1039/C4CC01532K, CommunicationJie Han, Minggui Wang, Rong Chen, Na Han, Rong Guo
Novel Au-polymer hollow hybrids having a single Au nanoparticle encapsulated in each porous polymer shell with superior catalytic efficiency and recyclability have been demonstrated.
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A masked diboron in Cu-catalysed borylation reaction: highly regioselective formal hydroboration of alkynes for synthesis of branched alkenylborons

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8299-8302
DOI: 10.1039/C4CC01757A, CommunicationHiroto Yoshida, Yuki Takemoto, Ken Takaki
Cu-catalysed [small alpha]-selective formal hydroboration of alkynes by use of a masked diboron and its application to total synthesis of pharmacologically significant 1,1-disubstituted alkene derivatives are described.
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New frontiers in hybrid materials: noble metal nanoparticles - supramolecular gel systems

4 July, 2014 - 10:54

Chem. Commun., 2014, 50,8273-8286
DOI: 10.1039/C4CC00903G, Feature ArticleMassimo Cametti, Zoran Dzolic
Recent developments in hybrid materials composed of noble metal nanoparticles and supramolecular gels are reviewed, with particular emphasis on synthetic procedures, characterization and potential applications.
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