Chem. Commun.

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A metal-free dyotropic-like rearrangement of 2-oxa allylic alcohols in the presence of organoboronic acids

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9879-9882
DOI: 10.1039/C4CC03450C, CommunicationWeimin Ye, Wenbo Li, Junliang Zhang
An unprecedented dyotropic-like rearrangement of 2-oxa allylic alcohols in the presence of catalytic amounts of Selectfluor and DABCO was reported.
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Highly selective directed arylation reactions via back-to-back dehydrogenative C-H borylation/arylation reactions

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9883-9886
DOI: 10.1039/C4CC02499K, CommunicationEric C. Keske, Brandon D. Moore, Olena V. Zenkina, Ruiyao Wang, Gabriele Schatte, Cathleen M. Crudden
Dimeric rhodium N-heterocyclic carbene complexes are demonstrated to be effective catalyst precursors for directed C-H borylation reactions at room temperature.
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Chirality-switchable circularly polarized luminescence in solution based on the solvent-dependent helix inversion of poly(quinoxaline-2,3-diyl)s

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9951-9953
DOI: 10.1039/C4CC03944K, CommunicationYuuya Nagata, Tsuyoshi Nishikawa, Michinori Suginome
Poly(quinoxaline-2,3-diyl)s containing (S)-2-methylbutoxy side chains were found to exhibit chirality-switchable blue circularly polarized luminescence (CPL).
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An STM study of molecular exchange processes in organic thin film growth

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9954-9957
DOI: 10.1039/C4CC03656E, CommunicationJose M. Gallego, David Ecija, Nazario Martin, Roberto Otero, Rodolfo Miranda
PCBM molecules deposited on an exTTF layer grown on Au(111) exchange places with the exTTF molecules, expelling them to the outer surface, even at 150 K, when the surface diffusion of the exTTF molecules is completely frozen.
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Modulated SmAb phases formed by anchor shaped liquid crystalline molecules

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9903-9906
DOI: 10.1039/C4CC03059A, CommunicationKarina Geese, Marko Prehm, Carsten Tschierske
Bent-core molecules with a lateral alkyl chain form new modulated biaxial SmAb phases combining long range and short range periodicities in two or three directions.
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Nano-scale characterization of binary self-assembled monolayers under an ambient condition with STM and TERS

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9862-9864
DOI: 10.1039/C4CC02754J, CommunicationNoriko N. Horimoto, Shigeru Tomizawa, Yasuhiko Fujita, Shinji Kajimoto, Hiroshi Fukumura
Gold surfaces were modified by benzyl-mercaptan (BM) and then partly replaced with benzenethiol (BT), which formed binary self-assembled monolayers (SAM).
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One-step preparation of mirror-like NiS nanosheets on ITO for the efficient counter electrode of dye-sensitized solar cells

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9869-9871
DOI: 10.1039/C4CC03798G, CommunicationXun Sun, Jie Dou, Fengyan Xie, Yafeng Li, Mingdeng Wei
A just one-hour hydrothermal method was developed to synthesize a mirror-like nickel sulfide counter electrode without any post-treatment.
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Rhodium(III)-catalyzed olefinic C-H alkynylation of enamides at room temperature

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9865-9868
DOI: 10.1039/C4CC04072D, CommunicationChao Feng, Daming Feng, Teck-Peng Loh
Rh(III)-catalyzed C-H olefinic alkynylation of enamides for the stereospecific construction of synthetically useful Z-type enynamides is reported. This protocol displays good functionality tolerance and operational simplicity thus providing an alternative synthetic opportunity for the ease of access to specific 1,3-enyne derivatives.
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A novel fluorescence probe for estimation of cysteine/histidine in human blood plasma and recognition of endogenous cysteine in live Hct116 cells

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9899-9902
DOI: 10.1039/C4CC04214J, CommunicationUpendar Reddy G., Hridesh Agarwalla, Nandaraj Taye, Suvankar Ghorai, Samit Chattopadhyay, Amitava Das
A new cell membrane permeable reagent for detection of endogenous Cys as well as quantitative estimation of Cys and His in a human blood plasma sample.
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An integration of condensation/Ullmann-type coupling/bicyclization sequences: copper-catalyzed three-component direct synthesis of [1,2,4]triazolo[1,5-b]isoquinolin-5(1H)-ones

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9914-9916
DOI: 10.1039/C4CC03420A, CommunicationFeng-Cheng Jia, Cheng Xu, Qun Cai, An-Xin Wu
A highly efficient three-component domino protocol has been developed for the synthesis of [1,2,4]triazolo[1,5-b]isoquinolin-5(1H)-ones from simple and readily available o-halogenated benzohydrazides, aldehydes and nitriles.
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A silver nanowire-based tip suitable for STM tip-enhanced Raman scattering

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9839-9841
DOI: 10.1039/C4CC02750G, CommunicationYasuhiko Fujita, Rie Chiba, Gang Lu, Noriko N. Horimoto, Shinji Kajimoto, Hiroshi Fukumura, Hiroshi Uji-i
A chemically synthesized silver nanowire was used for atomic-resolution STM imaging and tip-enhanced Raman scattering (TERS) spectroscopy, yielding excellent reproducibility.
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Systematic synthesis of sulfated oligofucosides and their effect on breast cancer MCF-7 cells

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9831-9834
DOI: 10.1039/C4CC03544E, CommunicationShinsuke Arafuka, Nozomi Koshiba, Daisuke Takahashi, Kazunobu Toshima
A designed and synthesized sulfated tetrafucoside effectively induced apoptosis in MCF-7 cells through activation of caspase-8.
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Well-defined transition metal hydrides in catalytic isomerizations

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9816-9826
DOI: 10.1039/C4CC02399D, Feature ArticleEvgeny Larionov, Houhua Li, Clement Mazet
This Feature Article intends to provide an overview of a variety of catalytic isomerization reactions that have been performed using well-defined transition metal hydride precatalysts.
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Fluorescent silver nanoclusters stabilized by DNA scaffolds

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9800-9815
DOI: 10.1039/C4CC02981J, Feature ArticleZhiqin Yuan, Ying-Chieh Chen, Hung-Wen Li, Huan-Tsung Chang
This feature article summarizes the synthesis, optical properties, and analytical applications of highly fluorescent and biocompatible DNA stabilized silver nanoclusters.
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A novel fully water-soluble Cu(I) probe for fluorescence live cell imaging

3 August, 2014 - 18:17

Chem. Commun., 2014, 50,9835-9838
DOI: 10.1039/C4CC02147A, CommunicationMaria Laura Giuffrida, Enrico Rizzarelli, Gaetano A. Tomaselli, Cristina Satriano, Giuseppe Trusso Sfrazzetto
Monovalent copper detection in solution and in living cells by a new probe is shown. Total water solubility, localization in mitochondria and negligible toxicity of OBEP-CS1 make it suitable for in vitro measurements.
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Efficient optical resolution of water-soluble self-assembled tetrahedral M4L6 cages with 1,1[prime or minute]-bi-2-naphthol

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04145C, CommunicationShigang Wan, Li-Rong Lin, Lili Zeng, Yiji Lin, Hui Zhang
Self-assembled tetrahedral M4L6 cages were successfully resolved into their [capital Delta][capital Delta][capital Delta][capital Delta] and [capital Lambda][capital Lambda][capital Lambda][capital Lambda] enantiomers by (R)-/(S)-1,1[prime or minute]-bi-2-naphthol.
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Metal-ligand bifunctional reactivity and catalysis of protic N-heterocyclic carbene and pyrazole complexes featuring [small beta]-NH units

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04457F, Feature ArticleShigeki Kuwata, Takao Ikariya
The metal-ligand bifunctional cooperation of protic N-heterocyclic carbene and pyrazole complexes bearing an NH unit at the position [small beta] to the metal is surveyed.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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The glyco-stereoisomerism effect on hydrogelation of polymers interacting via dynamic covalent bonds

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9779-9782
DOI: 10.1039/C4CC04735D, CommunicationMingchang Lin, Pengfei Sun, Guosong Chen, Ming Jiang
This work explores, for the first time, the stereoisomerism effect of sugar units of glycopolymers on hydrogelation.
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An efficient regioselective hydrodifluoromethylation of unactivated alkenes with TMSCF2CO2Et at ambient temperature

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9749-9752
DOI: 10.1039/C4CC04591B, CommunicationGuobin Ma, Wen Wan, Jialiang Li, Qingyang Hu, Haizhen Jiang, Shizheng Zhu, Jing Wang, Jian Hao
An efficient regioselective hydrodifluoromethylation of diverse unactivated vicinal alkenes is described. The primary mechanistic investigations indicate that a CF2COOEt radical species is involved.
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Rh(III)-Catalyzed synthesis of sultones through C-H activation directed by a sulfonic acid group

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9776-9778
DOI: 10.1039/C4CC03627A, CommunicationZisong Qi, Mei Wang, Xingwei Li
Rh(III)-Catalyzed oxidative coupling of sulfonic acids with alkynes affords sultones in high efficiency.
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