Chem. Commun.

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A bromine-radical mediated three-component reaction comprising allenes, electron-deficient alkenes and allyl bromides: facile synthesis of 2-bromo-1,7-dienes

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5993-5996
DOI: 10.1039/C4CC01597E, CommunicationTakashi Kippo, Ilhyong Ryu
A bromine-radical mediated three-component coupling reaction was effectively achieved by the use of allenes, electron-deficient alkenes, and allyl bromides and led to the synthesis of 2-bromo-1,7-dienes in good to high yields.
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Solvent free selective dehydrogenation of indolic and carbazolic molecules with an iridium pincer catalyst

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5987-5989
DOI: 10.1039/C4CC02073A, CommunicationDaniel F. Brayton, Craig M. Jensen
A previously known iridium POCOP pincer catalyst was found to selectively dehydrogenate the heterocyclic portion of several indolic and carbazolic molecules.
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Cu(I)-mediated 18F-trifluoromethylation of arenes: Rapid synthesis of 18F-labeled trifluoromethyl arenes

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,6056-6059
DOI: 10.1039/C4CC01641F, CommunicationT. Ruhl, W. Rafique, V. T. Lien, P. J. Riss
An efficient, CuI-mediated method for the radiosynthesis of [18F]trifluoromethyl arenes, abundant motifs in small molecule drug candidates and potential radiotracers for positron emission tomography starting from [18F]fluoride ions is described.
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Investigation of putative arene-C-H[small pi](quasi-chelate ring) interactions in copper(I) crystal structures

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5984-5986
DOI: 10.1039/C4CC02040E, CommunicationChien Ing Yeo, Siti Nadiah Abdul Halim, Seik Weng Ng, Seng Lim Tan, Julio Zukerman-Schpector, Marco A. B. Ferreira, Edward R. T. Tiekink
Interactions of the type C-H[small pi](CuClHNCS), i.e. C-H[small pi](quasi-chelate ring) where a six-membered quasi-chelate ring is closed by an N-HCl hydrogen bond, are presented.
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Highly ordered macro-mesoporous carbon nitride film for selective detection of acidic/basic molecules

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5976-5979
DOI: 10.1039/C4CC02042A, CommunicationLichao Jia, Hongqiang Wang, Dattatray Dhawale, Chokkalingam Anand, Mohammad A. Wahab, Qingmin Ji, Katsuhiko Ariga, Ajayan Vinu
Here we report on the preparation and "photo-switch" sensing performance of meso-macroporous carbon nitride film for detection of both acidic and basic molecules.
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Ethylene bis-imidazoles are highly potent and selective activators for isozymes VA and VII of carbonic anhydrase, with a potential nootropic effect

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5980-5983
DOI: 10.1039/C4CC02346C, CommunicationBogdan Draghici, Daniela Vullo, Suleyman Akocak, Ellen A. Walker, Claudiu T. Supuran, Marc A. Ilies
Ethylene bis-imidazoles displayed nanomolar selectivity and potency against key human carbonic anhydrase isozymes involved in brain physiology.
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Octahedral-shaped perovskite nanocrystals and their visible-light photocatalytic activity

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,6027-6030
DOI: 10.1039/C4CC01118J, CommunicationSimin Yin, He Tian, Zhaohui Ren, Xiao Wei, Chunying Chao, Jingyuan Pei, Xiang Li, Gang Xu, Ge Shen, Gaorong Han
Octahedral-shaped perovskite PbTiO3 nanocrystals have been hydrothermally synthesized for the first time by the introduction of lithium nitride, demonstrating remarkable visible-light potocatalytic activity in the degradation of MB aqueous solution.
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Elucidation of slow magnetic relaxation in a ferromagnetic 1D dysprosium chain through magnetic dilution

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,6052-6055
DOI: 10.1039/C4CC01368A, CommunicationLi Jia, Qi Chen, Yin-Shan Meng, Hao-Ling Sun, Song Gao
Slow magnetic relaxation in a novel ferromagnetic dysprosium chain originating from single-ion magnetic anisotropy was elucidated by magnetic dilution.
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One-pot synthesis of 2-substituted benzo[b]furans via Pd-tetraphosphine catalyzed coupling of 2-halophenols with alkynes

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,6023-6026
DOI: 10.1039/C4CC00815D, CommunicationRong Zhou, Wei Wang, Zhi-jie Jiang, Kun Wang, Xue-li Zheng, Hai-yan Fu, Hua Chen, Rui-xiang Li
[Pd([small eta]3-C3H5)Cl]2-L catalyzed one pot synthesis of 2-substituted benzo[b]furans from 2-halophenols and alkynes is presented with a maximum TON of 870 000.
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Design of tetraplex specific ligands: cyclic naphthalene diimide

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5967-5969
DOI: 10.1039/C4CC01005A, CommunicationYugo Esaki, Md. Monirul Islam, Satoshi Fujii, Shinobu Sato, Shigeori Takenaka
Cyclic naphthalene diimide 1 bound to hybrid-type tetraplex DNA from 5[prime or minute]-AGGG(TTAGGG)3-3[prime or minute] (K = 8.6 [times] 106 M-1) with 260-fold greater affinity than that when binding to double stranded oligonucleotide consisting of 5[prime or minute]-GGG AGG TTT CGC-3[prime or minute] and 3[prime or minute]-CCC TCC AAA GCG-5[prime or minute] (nK = 3.3 [times] 104 M-1) with 0.5 [small mu ]M of IC50 for telomerase activity.
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A fluorescent molecular probe for the identification of zinc and cadmium salts by excited state charge transfer modulation

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,6020-6022
DOI: 10.1039/C4CC00379A, CommunicationKizhmuri P. Divya, Sivaraman Savithri, Ayyappanpillai Ajayaghosh
The effect of a counteranion of a specific metal salt on the excited state charge transfer property of a fluorescent molecular probe 1 is utilized for the identification of different zinc and cadmium salts.
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Predictive design of engineered multifunctional solid catalysts

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5940-5957
DOI: 10.1039/C4CC00834K, Feature ArticleRobert Raja, Matthew E. Potter, Stephanie H. Newland
Rational design of multifunctional active centres at the atomic level affords structure-property correlations for targeted industrial catalysis.
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sp3C-H bond alkylation of ketones with alkenes via ruthenium(II) catalysed dehydrogenation of alcohols

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5970-5972
DOI: 10.1039/C4CC00931B, CommunicationBin Li, Christophe Darcel, Pierre H. Dixneuf
The sp3C-H bond alkylation of 2-pyridylethanols upon reaction with alkenes, with a [RuCl2(arene)]2 catalyst and Cu(OAc)2[middle dot]H2O proceeds via a tandem dehydrogenation/alkylation with alkenes of the resulting ketone.
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Pseudo-capacitive performance of titanate nanotubes as a supercapacitor electrode

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5973-5975
DOI: 10.1039/C3CC49494B, CommunicationJie Yang, Lifang Lian, Peixun Xiong, Mingdeng Wei
Layered titanate H2Ti3O7 nanotubes were firstly used as a supercapacitor electrode and exhibited a specific capacitance as high as 414 F g-1 at 0.5 A g-1.
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Redox-controlled [small delta]-Dawson {Mn2IIIW17} polyoxometalate with photocatalytic H2 evolution activity

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5961-5963
DOI: 10.1039/C3CC47703G, CommunicationYan-Qing Jiao, Chao Qin, Xin-Long Wang, Fu-Hong Liu, Peng Huang, Chun-Gang Wang, Kui-Zhan Shao, Zhong-Min Su
The [small delta]-Dawson [(WO5)3W14O40Mn2IIIO4Cl2]12- compound induced by the Jahn-Teller distortion of MnIII has been synthesized through importing {Mn12} as a reactant, which exhibits photocatalytic H2 evolution activity.
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Phototriggered formation and disappearance of surface-confined self-assembly composed of photochromic 2-thienyl-type diarylethene: a cooperative model at the liquid/solid interface

14 May, 2014 - 22:54

Chem. Commun., 2014, 50,5964-5966
DOI: 10.1039/C3CC48895K, CommunicationSoichi Yokoyama, Takashi Hirose, Kenji Matsuda
A photoresponsive self-assembly on a 2-D surface was investigated by STM and the behavior was analyzed by a cooperative model.
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