Chem. Commun.

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Synthesis of enaminones and their difluoroboron complexes through domino aryl migration

2 January, 2015 - 07:54

Chem. Commun., 2015, 51,1267-1270
DOI: 10.1039/C4CC08257E, CommunicationZheng Yang, Bo Jiang, Wen-Juan Hao, Peng Zhou, Shu-Jiang Tu, Guigen Li
Synthesis of enaminones and their difluoroboron complexes has been achieved by involving domino aryl migration.
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Designed supramolecular filamentous peptides: balance of nanostructure, cytotoxicity and antimicrobial activity

2 January, 2015 - 07:54

Chem. Commun., 2015, 51,1289-1292
DOI: 10.1039/C4CC08808E, CommunicationDawei Xu, Linhai Jiang, Anju Singh, Derek Dustin, Miao Yang, Ling Liu, Reidar Lund, Timothy J. Sellati, He Dong
We present a design strategy to optimize antimicrobial peptides to minimize cytotoxicity while enhancing stability and antimicrobial activity, which holds promise for local and systemic intracellular anti-infective therapy.
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Krebs cycle metabolon formation: metabolite concentration gradient enhanced compartmentation of sequential enzymes

2 January, 2015 - 07:54

Chem. Commun., 2015, 51,1244-1247
DOI: 10.1039/C4CC08702J, CommunicationFei Wu, Lindsey N. Pelster, Shelley D. Minteer
The substrate (L-malate) gradient created in a microfluidic channel induced the directional diffusion of mitochondrial malate dehydrogenase (mMDH) toward a higher concentration region and in situ generation of an intermediate (OAA) gradient enhanced the co-diffusion of citrate synthase (CS) together with mMDH.
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Oxidative decomposition of Au25(SR)18 clusters in a catalytic context

2 January, 2015 - 07:54

Chem. Commun., 2015, 51,1240-1243
DOI: 10.1039/C4CC07832B, CommunicationTimothy A. Dreier, O. Andrea Wong, Christopher J. Ackerson
While investigating their potential as homogeneous catalysts, we have discovered that Au25(SR)18 clusters are not stable to conditions reported for styrene oxidation.
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In situ observation of the evaporation-induced self-assembling process of PS-b-PEO diblock copolymers for the fabrication of titania films by confocal laser scanning microscopy

2 January, 2015 - 07:54

Chem. Commun., 2015, 51,1230-1233
DOI: 10.1039/C4CC08497G, CommunicationTatsuo Kimura, Morio Shintate, Nobuyoshi Miyamoto
The formation of PS-b-PEO micelles was directly observed by CLSM at the initial stage of the drying process for fabricating a highly porous titania film.
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Combination of fluoroalkylation and Kornblum-DeLaMare reaction: a new strategy for the construction of (Z)-[small beta]-perfluoroalkyl enaminones

2 January, 2015 - 07:54

Chem. Commun., 2015, 51,1214-1217
DOI: 10.1039/C4CC07833K, CommunicationChunmei Liu, Erbo Shi, Feng Xu, Qiang Luo, Hongxiang Wang, Jijun Chen, Xiaobing Wan
A novel strategy has been developed for the highly chemo- and stereo-selective synthesis of (Z)-[small beta]-perfluoroalkyl enaminones via a multicomponent radical reaction involving sequential fluoroalkylation and Kornblum-DeLaMare reaction.
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Activation of carbon-supported catalysts by ozonized acidic solutions for the direct implementation in (electro-)chemical reactors

2 January, 2015 - 07:54

Chem. Commun., 2015, 51,1226-1229
DOI: 10.1039/C4CC08480B, CommunicationC. Baldizzone, S. Mezzavilla, N. Hodnik, A. R. Zeradjanin, A. Kostka, F. Schuth, K. J. J. Mayrhofer
Development of a novel and scalable ex situ technique for the simultaneous activation/dealloying of Pt-based nanocatalysts for energy conversion applications.
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Self-organized nanoclusters in solution-processed mesoporous In-Ga-Zn-O thin films

2 January, 2015 - 07:54

Chem. Commun., 2015, 51,1218-1221
DOI: 10.1039/C4CC08521C, CommunicationC. Revenant, M. Benwadih, M. Maret
Self-organized nanoclusters together with the spontaneous creation of a mesopore pattern were obtained in annealed solution-processed In-Ga-Zn-O thin films.
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Cu-catalyzed intramolecular aryl-etherification reactions of alkoxyl alkynes with diaryliodonium salts via cleavage of a stable C-O bond

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1356-1359
DOI: 10.1039/C4CC08363F, CommunicationJing Chen, Chao Chen, Junjie Chen, Guohua Wang, Hongmei Qu
Cu-catalyzed aryl-etherification reactions of alkoxyl alkynes with diaryliodonium salts are realized to produce oxo-heterocycles via cleavage of a stable C-O bond.
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Facile synthesis of bimetal Au-Ag nanoparticles in a Cu(I) boron imidazolate framework with mechanochromic properties

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1353-1355
DOI: 10.1039/C4CC09041A, CommunicationTian Wen, De-Xiang Zhang, Juan Liu, Hai-Xia Zhang, Jian Zhang
A new multifunctional Cu(I) boron imidazolate framework shows unusual mechanochromic properties and exceptional reducing ability through the direct loading of Au-Ag nanoparticles.
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Metal-free cascade construction of C-C bonds by activation of inert C(sp3)-H bonds

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1320-1322
DOI: 10.1039/C4CC08629E, CommunicationHonglin Zhang, Changduo Pan, Ning Jin, Zhangxi Gu, Hongwen Hu, Chengjian Zhu
Metal-free catalytic activation of inert C(sp3)-H/elimination of SO2/C-C bond formation via a free radical process were achieved in sequence.
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Easy and quantitative access to Fe(II) and Fe(III) di(aryl)alkynylphosphine oxides featuring [Fe(dppe)Cp*] endgroups: terminal P[double bond, length as m-dash]O functionality blocks the dimerisation of the Fe(III) derivatives

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1316-1319
DOI: 10.1039/C4CC08993F, CommunicationAyham Tohme, Charles T. Hagen, Stephanie Essafi (nee Labouille), Arnaud Bondon, Thierry Roisnel, Duncan Carmichael, Frederic Paul
Preventing the oxidatively-induced dimerization of Fe(III) metalloalkynyl phosphines can be achieved by sequestering the phosphorus lone pair.
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Spiro-configured phenyl acridine thioxanthene dioxide as a host for efficient PhOLEDs

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1313-1315
DOI: 10.1039/C4CC08028A, CommunicationMaxime Romain, Denis Tondelier, Bernard Geffroy, Anna Shirinskaya, Olivier Jeannin, Joelle Rault-Berthelot, Cyril Poriel
A new high triplet organic semi-conductor based on a donor-spiro-acceptor design has been synthesized and used as a host material in high performance (EQE = 11.4% at 10 mA cm-2) sky blue phosphorescent organic light emitting diodes.
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Regio- and stereoselective synthesis of benzothiazolo-pyrimidinones via an NHC-catalyzed Mannich/lactamization domino reaction

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1263-1266
DOI: 10.1039/C4CC08594A, CommunicationQijian Ni, Xiaoxiao Song, Jiawen Xiong, Gerhard Raabe, Dieter Enders
An NHC-catalyzed regio- and stereoselective Mannich/lactamization domino reaction of N-(benzothiazolyl)imines with [small alpha]-chloroaldehydes has been developed.
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A redox-activated fluorescence switch based on a ferrocene-fluorophore-boronic ester conjugate

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1293-1296
DOI: 10.1039/C4CC07891H, CommunicationMeng Li, Zhiqian Guo, Weihong Zhu, Frank Marken, Tony D. James
A novel electrochemically and fluorescence active boronic ester sensor molecule has been developed containing ferrocene and naphthalimide as the redox and fluorophore units.
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Heterogeneous selective hydrogenation of ethylene carbonate to methanol and ethylene glycol over a copper chromite nanocatalyst

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1252-1254
DOI: 10.1039/C4CC08247H, CommunicationChao Lian, Fumin Ren, Yuxi Liu, Guofeng Zhao, Yongjun Ji, Hongpan Rong, Wei Jia, Lei Ma, Haiyuan Lu, Dingsheng Wang, Yadong Li
Heterogeneous selective hydrogenation of ethylene carbonate to methanol and ethylene glycol, which provides an opportunity for industrial application of CO2 indirect conversion, was achieved for the first time over a copper chromite nanocatalyst.
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Gallium complexes with [small alpha]-diimine and phenazine in various reduced states

31 December, 2014 - 07:17

Chem. Commun., 2015, 51,1237-1239
DOI: 10.1039/C4CC04128C, CommunicationYanxia Zhao, Yanyan Liu, Zeyi Wang, Wenhua Xu, Bin Liu, Ji-Hu Su, Biao Wu, Xiao-Juan Yang
Reaction of "digallane" with phenazine (Phz) leads to gallium complexes containing Phz and an [small alpha]-diimine ligand in different reduced forms.
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Rhodium(III)-Catalyzed C7-Position C-H Alkenylation and Alkynylation of Indolines

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09330E, CommunicationTeck Peng Loh, Xiao-Fei Yang, Xu-Hong Hu, Chao Feng
A Rh(III)-catalyzed regioselective C-H alkenylation and alkynylation of indolines is described. This protocol relies on the use of a removable pyridinyl directing group to access valuable C-7 functionalized indoline scaffolds...
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Ratiometric ECL of heterodinuclear Os/Ru dual-emission labels

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08394F, CommunicationShiguo Sun, Wei Sun, Daozhou Mu, Na Jiang, Xiaojun Peng
In this study, [(bpy)2Ru(bpy)(CH2)n(bpy)Os(bpy)2]4+ (1, where bpy is 2,2[prime or minute]-bipyridinyl, n = 10, 1a, n = 14, 1b) complexes were designed and synthesized. Two hererodinuclear Os-Ru electrogenerated chemiluminescence (ECL) labels with...
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Functionalized Cyclopentenes Through a Tandem NHC-Catalyzed Dynamic Kinetic Resolution and Ambient Temperature Decarboxylation: Mechanistc Insight and Synthetic Application

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09308A, CommunicationKarl A Scheidt, Daniel Cohen, Ryne Johnston, Paul Ha-Yeon Cheong, Nicholas T Rosson
An unusual room temperature [small beta]-lactone decarboxylation facilitated a five-step enantioselective formal synthesis of the cyclopentane core of an estrogen receptor [small beta]-agonist. A computational study probed the underlying factors facilitating unprecedented,...
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