Chem. Commun.

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Creation of molecular complexities via a Cu-catalyzed new cascade reaction: A direct access to novel 2,2'-spirobiindole derivatives

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08911A, CommunicationBagineni Prasad, Raju Adepu, Atul Kumar Sharma, Manojit Pal
A Cu-mediated unprecedented cascade reaction in the presence of air afforded a conceptually new synthesis of 2,2'-spirobiindole derivatives. This reaction proceeds via the rearrangement of several bonds in a cyclopenta[b]indole...
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A new chromo-fluorogenic probe based on BODIPY for NO2 detection in air

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08654F, CommunicationAna M. Costero, L. Albeerto Juarez, Margarita Parra, Salvador Gil, Felix Sancenon, Ramon Martinez-Manez
A novel colorimetric probe for the selective and sensitive detection of NO2 in solution and in air based in a BODIPY core containing an oxime group has been prepared.
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Pd- Catalyzed Direct C-H Functionalization of Imidazolones with Aryl- and Alkenyl Halides

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07917E, CommunicationChristophe Hoarau, Mickael Muselli, Christine Baudequin, Laurent Bischoff
Direct C-H arylation and alkenylation of 4,4'-dialkylimidazolones with halides under palladium and copper catalysis have been developed. This reaction tolerates a wide variety of electronically-different substituents on coupling partners. This...
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Asymmetric Tandem Reactions of N-Sulfonylimines and [small alpha],[small beta]-Unsaturated Aldehydes: An Alternative Reaction Pathway to That of Using Saturated Aldehydes

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07051H, CommunicationQianjin An, Jing Li, Jiefeng Shen, Nicholas Butt, Delong Liu, Yangang Liu, Wanbin Zhang
An organocatalyzed asymmetric tandem reaction of cyclic N-sulfonylimines and [small alpha],[small beta]-unsaturated aldehydes was developed. These substrates follow an alternative reaction pathway to that of reactions involving saturated aldehydes, affording similar piperidine...
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Multiple turnovers of DNAzyme for amplified detection of ATP and reduced thiol in cell homogenate

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08428D, CommunicationYingshu Guo, Jia Liu, Guangxu Yang, Xiaofeng Sun, Hong-Yuan Chen, Jing-Juan Xu
A conveniently amplified DNAzyme-based fluorescence strategy was designed for highly sensitive detection of ATP or reduced thiol based on the introduction of ATP aptamer or disulfide bond in the bioconjugates...
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A mild TCEP-based para-azidobenzyl cleavage strategy to transform reversible cysteine thiol labelling reagents into irreversible conjugates

22 November, 2014 - 21:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08515A, CommunicationAntoine Maruani, Shamim Alom, Pierre Canavelli, Maximillian T. W. Lee, Rachel E. Morgan, Vijay Chudasama, Stephen Caddick
A mild TCEP-based para-azidobenzyl cleavage strategy transforms reversible cysteine thiol labelling reagents into irreversible conjugates.
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Proton reduction by molecular catalysts in water under demanding atmospheres

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15995-15998
DOI: 10.1039/C4CC06159D, CommunicationDavid W. Wakerley, Manuela A. Gross, Erwin Reisner
The electrocatalytic proton reduction activity of a Ni bis(diphosphine) and a cobaloxime catalyst has been studied in water in the presence of the gaseous inhibitors O2 and CO.
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P-modified and carbon shell coated Co nanoparticles for efficient alkaline oxygen reduction catalysis

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15940-15943
DOI: 10.1039/C4CC07143C, CommunicationJaeyune Ryu, Namgee Jung, Dong-Hee Lim, Dong Yun Shin, Sae Hume Park, Hyung Chul Ham, Jong Hyun Jang, Hyoung-Juhn Kim, Sung Jong Yoo
The present carbon shell coated Co nanoparticles of which the surface composites are modified by phosphorus incorporation, exhibit efficient and durable oxygen reduction activities in alkaline medium.
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Correction: Copper-mediated oxidative trifluoromethylthiolation of unactivated terminal alkenes

22 November, 2014 - 21:54
Chem. Commun., 2014, 50,15999-15999
DOI: 10.1039/C4CC90460E, CorrectionKe Zhang, Jian-Bo Liu, Feng-Ling Qing
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Engineering lead-sensing GFP through rational designing

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15979-15982
DOI: 10.1039/C4CC07163H, CommunicationSaravanan Prabhu Nadarajan, Yuvaraj Ravikumar, Kanagavel Deepankumar, Chong-Soon Lee, Hyungdon Yun
A lead biosensor (PbGFP) was developed by engineering lead binding site near the chromophore of green fluorescent protein. The specific binding of lead to chromophore of PbGFP resulted in turn-off mechanism.
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Highly-effective gating of single-molecule junctions: an electrochemical approach

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15975-15978
DOI: 10.1039/C4CC06519K, CommunicationMasoud Baghernejad, David Zsolt Manrique, Chen Li, Thomas Pope, Ulmas Zhumaev, Ilya Pobelov, Pavel Moreno-Garcia, Veerabhadrarao Kaliginedi, Cancan Huang, Wenjing Hong, Colin Lambert, Thomas Wandlowski
We report an electrochemical gating approach with [similar]100% efficiency to tune the conductance of single-molecule 4,4[prime or minute]-bipyridine junctions.
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Unprecedented synthesis of aza-bridged benzodioxepine derivatives through a tandem Rh(II)-catalyzed 1,3-rearrangement/[3+2] cycloaddition of carbonyltriazoles

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15971-15974
DOI: 10.1039/C4CC08339C, CommunicationYong-Sheng Zhang, Xiang-Ying Tang, Min Shi
Rh(II)-catalyzed novel tandem intramolecular cycloisomerizations of aldehydes or ketones with 1-sulfonyl 1,2,3-triazoles have been disclosed, providing a facile protocol to access a series of functionalized aza-bridged benzodioxepine heterocycles.
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Zirconium complexes of bipyrrolidine derived salan ligands for the isoselective polymerisation of rac-lactide

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15967-15970
DOI: 10.1039/C4CC07871C, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Matthew D. Jones, Stuart L. Hancock, Paul McKeown, Pascal M. Schafer, Antoine Buchard, Lynne H. Thomas, Mary F. Mahon, John P. Lowe
We report a series of Zr(IV) 2,2[prime or minute]-bipyrrolidine-salan derived complexes and their exploitation for the ROP of rac-lactide to afford highly isotactically enriched PLA.
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Direct asymmetric hydrogenation of [small alpha]-keto acids by using the highly efficient chiral spiro iridium catalysts

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15987-15990
DOI: 10.1039/C4CC07643E, CommunicationPu-Cha Yan, Jian-Hua Xie, Xiang-Dong Zhang, Kang Chen, Yuan-Qiang Li, Qi-Lin Zhou, Da-Qing Che
The Ir/SpiroPAP catalyzed direct asymmetric hydrogenation of [small alpha]-keto acids under mild reaction conditions has been developed.
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An improved organic/inorganic solid receptor for colorimetric cyanide-chemosensing in water: towards new mechanism aspects, simplistic use and portability

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15983-15986
DOI: 10.1039/C4CC06756H, CommunicationArash Mouradzadegun, Fatemeh Abadast
A new synergy between an organic receptor and an inorganic matrix was developed to form a heterogeneous chemosensor for the naked-eye colorimetric sensing of cyanide in pure water.
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A new mode to light up an adjacent DNA-scaffolded silver probe pair and its application for specific DNA detection

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15991-15994
DOI: 10.1039/C4CC07209J, CommunicationBin-Cheng Yin, Jin-Liang Ma, Huynh-Nhu Le, Shilong Wang, Zengguang Xu, Bang-Ce Ye
By fluorescence enhancement of a proximity-dependent DNA-scaffolded silver nanocluster probe pair and exonuclease III-mediated signal amplification, we present a new fluorescence turn-on mode and its application for specific DNA detection.
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Rim-functionalized cryptophane-111 derivatives via heterocapping, and their xenon complexes

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15905-15908
DOI: 10.1039/C4CC08001G, CommunicationAkil I. Joseph, Gracia El-Ayle, Celine Boutin, Estelle Leonce, Patrick Berthault, K. Travis Holman
Rim-functionalization of cryptophane-111 narrows the achievable conformational range of the cage, resulting in unprecedentedly crowded Xe@cryptophane complexes.
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Tetraiodoethynyl resorcinarene cavitands as multivalent halogen bond donors

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15920-15923
DOI: 10.1039/C4CC07771G, CommunicationL. Turunen, N. K. Beyeh, F. Pan, A. Valkonen, K. Rissanen
The first examples of iodoethynyl resorcinarene cavitands as rigid 3D halogen bond (XB) donor molecules are presented. These concave macrocycles form strong, RXB = 0.78-0.83, halogen bonds with dioxane oxygen, pyridine nitrogen and a bromide anion in tetraproropyl ammonium bromide resulting in deep cavity cavitand structures.
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A new method for peptide synthesis in the N[rightward arrow]C direction: amide assembly through silver-promoted reaction of thioamides

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15963-15966
DOI: 10.1039/C4CC07601J, CommunicationAysa Pourvali, James R. Cochrane, Craig A. Hutton
The Ag(I)-promoted coupling of peptide-acids with thioamides generates peptide-imides, which was exploited in the synthesis of peptides in the N[rightward arrow]C direction.
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Fluorometric assay of integrin activity with a small-molecular probe that senses the binding site microenvironment

22 November, 2014 - 21:54

Chem. Commun., 2014, 50,15894-15896
DOI: 10.1039/C4CC05591H, CommunicationToru Komatsu, Aoi Takeda, Kenjiro Hanaoka, Takuya Terai, Tasuku Ueno, Yukio Tada, Tetsuo Nagano, Yasuteru Urano
We have developed a small-molecular probe, consisting of cyclic RGD pentapeptide bearing a nitrobenzoxadiazole fluorophore at the 4[prime or minute]-residue, which detects integrin [small alpha]V[small beta]3 activity in terms of fluorescence intensity decrease.
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