Royal Society of Chemistry

Fullerene derivatives with increased dielectric constants

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10645-10647
DOI: 10.1039/C4CC04366A, CommunicationFatemeh Jahani, Solmaz Torabi, Ryan C. Chiechi, L. Jan Anton Koster, Jan C. Hummelen
The dielectric constant of fullerene derivatives is increased through covalent modification and without deleterious effects on other properties.
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PCR quantification of SiO2 particle uptake in cells in the ppb and ppm range via silica encapsulated DNA barcodes

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10707-10709
DOI: 10.1039/C4CC04480K, CommunicationMarcus Hoop, Daniela Paunescu, Philipp R. Stoessel, Fritz Eichenseher, Wendelin J. Stark, Robert N. Grass
The cellular uptake of silica nanoparticles loaded with a DNA barcode can be detected at a 10 fg per cell level utilizing qPCR analytics.
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Smart dual-functional warhead for folate receptor-specific activatable imaging and photodynamic therapy

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10600-10603
DOI: 10.1039/C4CC04166F, CommunicationJisu Kim, Ching-Hsuan Tung, Yongdoo Choi
Folic acid as a bi-functional warhead to develop smart dual-targeted theranostic agents.
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Gold-catalyzed intermolecular oxidation of o-alkynylbiaryls: an easy and practical access to functionalized fluorenes

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10726-10729
DOI: 10.1039/C4CC05115G, CommunicationFei Pan, Shuang Liu, Chao Shu, Rong-Kun Lin, Yong-Fei Yu, Jin-Mei Zhou, Long-Wu Ye
A novel gold-catalyzed intermolecular oxidation of o-alkynylbiaryls has been developed. A variety of functionalized fluorenes are readily accessed by utilizing this non-diazo approach, thus providing a viable alternative to synthetically useful fluorenes.
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Live imaging of cellular dynamics using a multi-imaging vector in single cells

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10734-10736
DOI: 10.1039/C4CC04980B, CommunicationKyoungsook Park, Jinyoung Jeong, Bong Hyun Chung
A multi-imaging vector system based on 2A peptides is developed for real-time monitoring of cellular dynamics.
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Stereoselective [3+2] cycloaddition of N-tert-butanesulfinyl imines to arynes facilitated by a removable PhSO2CF2 group: synthesis and transformation of cyclic sulfoximines

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10596-10599
DOI: 10.1039/C4CC05042H, CommunicationWenchao Ye, Laijun Zhang, Chuanfa Ni, Jian Rong, Jinbo Hu
An unprecedented [3+2] cycloaddition between N-tert-butane sulfinyl imines and arynes provides a stereoselective method for the synthesis of cyclic sulfoximines.
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A lipophilic "fully-anti" dodecamer from a (5[prime or minute]S)-5[prime or minute],8-cyclo-2[prime or minute]-deoxyguanosine

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10722-10725
DOI: 10.1039/C4CC04275A, CommunicationSilvia Pieraccini, Michael A. Terzidis, Enrico J. Baldassarri, Giovanna Fragneto, Paolo Mariani, Stefano Masiero, Chryssostomos Chatgilialoglu
The self-assembly of a lipophilic derivative of mutagenic (5[prime or minute]S)-5[prime or minute],8-cyclo-2[prime or minute]-deoxyguanosine has been investigated by CD, NMR and SANS. The derivative forms a dodecameric G-quadruplex composed of three stacked fully-anti G-quartets.
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Sterically hindered malonamide monomers for the step growth synthesis of polyesters and polyamides

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10665-10668
DOI: 10.1039/C4CC03344B, CommunicationS. N. G. Tyler, R. L. Webster
Exploiting the ready cleavage of bulky amides in the presence of a simple nucleophile, a new monomer for step growth polymerisation has been realised. A range of novel polyesters and polyamides have been prepared under mild conditions that allow for efficient recycling and reuse of the amine by-product. The use of a Lewis acid to increase polyester molecular weight is also explored.
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An electron transfer series of octahedral chromium complexes containing a redox non-innocent [small alpha]-diimine ligand

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10626-10629
DOI: 10.1039/C4CC03332A, CommunicationJingmei Shen, Glenn P. A. Yap, William E. Barker IV, William E. Geiger, Klaus H. Theopold
An electron-transfer series of octahedral [small alpha]-diimine complexes [(HLCy)3Cr]n+(BARF)n (n = 2, 1, 0) has been synthesized and crystallographically characterized.
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Cyclopropanation of styrenes and stilbenes using lithiomethyl trimethylammonium triflate as methylene donor

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10608-10610
DOI: 10.1039/C4CC04929B, CommunicationJuan M. Sarria Toro, Tim den Hartog, Peter Chen
Soluble lithiomethyl trimethylammonium triflate can cyclopropanate styrenes and stilbenes efficiently. Kinetic experiments support a carbolithiation-ring closure mechanism.
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Pd-Catalyzed [3+2] cycloaddition of ketoimines with alkynes via directed sp3 C-H bond activation

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10699-10702
DOI: 10.1039/C4CC04676E, CommunicationYing Xie, Tengfei Chen, Shaomin Fu, Xing-Shu Li, Yuanfu Deng, Huanfeng Jiang, Wei Zeng
The palladium-catalyzed oxidative [3+2] cycloaddition of ketoimines with alkynes provided an efficient access to multisubstituted pyrroles via Csp3-H activation.
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Room-temperature palladium-catalyzed direct 2-arylation of benzoxazoles with aryl and heteroaryl bromides

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10661-10664
DOI: 10.1039/C4CC05307A, CommunicationFeng Gao, Byeong-Seon Kim, Patrick J. Walsh
The first room-temperature direct 2-arylation of benzoxazoles with aryl bromides by a Pd(OAc)2/NiXantphos-based catalyst is reported.
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Dehydromethylation of alkali metal salts of the utility amide 2,2,6,6-tetramethylpiperidide (TMP)

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10588-10591
DOI: 10.1039/C4CC04959D, CommunicationAlan R. Kennedy, Sarah M. Leenhouts, John J. Liggat, Antonio J. Martinez-Martinez, Kimberley Miller, Robert E. Mulvey, Charles T. O'Hara, Philip O'Keefe, Alan Steven
Heating alkali metal TMP compounds to reflux in hydrocarbon solution releases methane to generate novel aza-allyl derivatives.
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A highly sensitive surface plasmon resonance sensor for the detection of DNA and cancer cells by a target-triggered multiple signal amplification strategy

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10718-10721
DOI: 10.1039/C4CC04776A, CommunicationPeng He, Wenping Qiao, Lijun Liu, Shusheng Zhang
A SPR bioassay was developed for the detection of DNA and Ramos cells by combining the target-triggered isothermal exponential amplification with MNP-based RCA.
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Highly sensitive methyltransferase activity assay and inhibitor screening based on fluorescence quenching of graphene oxide integrated with the site-specific cleavage of restriction endonuclease

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10691-10694
DOI: 10.1039/C4CC04428B, CommunicationLijuan Ji, Zhewei Cai, Yingdan Qian, Ping Wu, Hui Zhang, Chenxin Cai
A sensitive and selective approach for the DNA methyltransferase activity assay and MTase inhibitor screening is reported.
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Photo-induced glycosylation using reusable organophotoacids

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10695-10698
DOI: 10.1039/C4CC04753B, CommunicationRyosuke Iwata, Kanjiro Uda, Daisuke Takahashi, Kazunobu Toshima
The glycosylation reactions of glycosyl trichloroacetimidates and several alcohols using an organophotoacid as an activator under photoirradiation proceeded smoothly to give the corresponding glycosides in high yields.
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Amorphous vanadium oxide coating on graphene by atomic layer deposition for stable high energy lithium ion anodes

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10703-10706
DOI: 10.1039/C4CC04580G, CommunicationXiang Sun, Changgong Zhou, Ming Xie, Tao Hu, Hongtao Sun, Guoqing Xin, Gongkai Wang, Steven M. George, Jie Lian
Amorphous V2O5 coating by atomic layer deposition on graphene displays a high rate and superior cyclic performance as a lithium ion battery anode. No mechanical degradation and dissolution of vanadium occur upon cycling.
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The Au clusters induce tumor cell apoptosis via specifically targeting thioredoxin reductase 1 (TrxR1) and suppressing its activity

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10687-10690
DOI: 10.1039/C4CC03320E, CommunicationRu Liu, Yaling Wang, Qing Yuan, Deyi An, Jingyuan Li, Xueyun Gao
The Au clusters stabilized by tridecapeptides can significantly suppress the TrxR1 activity in the cytoplasm and induce cell apoptosis.
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Ion-based assemblies of planar anion complexes and cationic PtII complexes

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10615-10618
DOI: 10.1039/C4CC04565C, CommunicationRyo Sekiya, Yusuke Tsutsui, Wookjin Choi, Tsuneaki Sakurai, Shu Seki, Yuya Bando, Hiromitsu Maeda
Because the metallophilicity of attractive PtIIPtII interactions helps in the fabrication of columnar structures, terpyridine-PtII complexes were used as planar counter cationic species for formation of charge-segregated assemblies using [small pi]-conjugated receptor-Cl- complexes as planar anions.
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A triply-responsive pillar[6]arene-based supramolecular amphiphile for tunable formation of vesicles and controlled release

Chem. Commun. - 17 August, 2014 - 20:54

Chem. Commun., 2014, 50,10658-10660
DOI: 10.1039/C4CC05031B, CommunicationQizhong Zhou, Huajiang Jiang, Rener Chen, Fangli Qiu, Guoliang Dai, Deman Han
A pillar[6]arene-based multi-responsive supramolecular amphiphile was constructed in water. The morphology of the self-assemblies formed by the supramolecular amphiphile exhibited pH-, photo- and enzyme- responsive transitions.
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