Royal Society of Chemistry

A convergent rhodium-catalysed asymmetric synthesis of tetrahydroquinolines

Chem. Commun. - 24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04940C, CommunicationHo Yin Li, Joachim Horn, Amanda Campbell, David House, Adam Nelson, Stephen P. Marsden
Rh-catalysed conjugate additions of 2-aminophenyl boronic acid derivatives were exploited in diastereoselective and asymmetric syntheses of tetrahydroquinolines.
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The Au Clusters Induce Tumor Cell Apoptosis via Specifically Targeting Thioredoxin Reductase 1 (TrxR1) and Suppressing its Activity

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03320E, CommunicationRu Liu, Yaling Wang, Qing Yuan, Deyi An, Jingyuan Li, Xueyun Gao
Au25 clusters stabilized by tridecapeptides were firstly synthesized, which can well penetrate the cell membrane and exactly locate in the cytoplasm. Hence the Au clusters significantly suppress the TrxR1 activity...
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Multiple GO-SELEX for Efficient Screening of Flexible Aptamers

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03953J, CommunicationVan Thuan Nguyen, Young Seop Kwon, JaeHoon Kim, Man bock Gu
We describe a simple, high-speed, high-throughput aptamer screening for a group of small molecules using Graphene Oxide (simple Multi-GO-SELEX) without immobilizing targets for the first time. The affinities of ten...
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Ion-based assemblies of planar anion complexes and cationic PtII complexes

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04565C, CommunicationRyo Sekiya, Yusuke Tsutsui, Wookjin Choi, Tsuneaki Sakurai, Shu Seki, Yuya Bando, Hiromitsu Maeda
Because the metallophilicity of attractive PtII[middle dot][middle dot][middle dot]PtII 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...
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The Origin of Cyanobactin Chemistry and Biology

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C3CC49252D, ViewpointMarcel Jaspars
The correct structure of the symmetrical cyanobactin, ascidiacyclamide, was published in Chemical Communications by Hamamoto et al in 1983. The cyanobactin family of compounds are cyclic peptides with modifications including...
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A triply-responsive pillar[6]arene-based supramolecular amphiphile for tunable formation of vesicles and controlled release

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05031B, CommunicationQizhong Zhou, Huajiang Jiang, Rener Chen, Fangli Qiu, Guoliang Dai, Deman Han
A pillar[6]arene-based supramolecular amphiphile has been constructed in water. The supramolecular amphiphile formed vesicles which could be regulated by pH, light and enzyme and thus loaded dye in the vesicles...
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The Simplest Method for Fabrication of High Refractive Index Polymer-Metal Oxide Hybrid Based on Soap-Free Process

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04471A, CommunicationHirokuni Jintoku, Hirotaka Ihara
A new method for facile fabrication of high refractive index material that is based on simple blending of polymer and heteropoly acid is demonstrated. This hybridization is shown to dramatically...
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Tuneable Fmoc-Phe-(4-X)-Phe-NH2 nanostructures by variable electronic substitution

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04926H, CommunicationCharalampos George Pappas, Yousef M. Abul-Haija, Angela Flack, Pim Wilhelmus Johannes Maria Frederix, Rein Ulijn
Supramolecular structures were produced by in situ enzymatic condensation of Fmoc-Phe-(4-X), where X denotes electron withdrawing or donating groups, with Phe-NH2. The relative contribution of [small pi]-stacking and H-bonding interactions can...
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Trifluoromethylation of arenediazonium salts with fluoroform-derived CuCF3 in aqueous media

Chem. Commun. - 24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04930F, CommunicationAnton Lishchynskyi, Guillaume Berthon, Vladimir V. Grushin
A new protocol has been developed for trifluoromethylation of arenediazonium salts with moisture-sensitive CuCF3 (from fluoroform) in aqueous media. The reaction is governed by a radical mechanism, tolerates a broad variety of functional groups, and is applicable to the synthesis of complex, polyfunctionalized molecules.
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Mild Hypervalent Iodine Mediated Oxidative Nitration of N-Aryl Sulfonamides

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04738A, CommunicationUlrich Kloeckner, Boris Johannes Nachtsheim
An oxidative and acid-free method for the nitration of N-aryl sulfonamides has been developed using a combination of sodium nitrite as cheap and easy to handle NO2-source and the hypervalent...
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A four-component organogel based on orthogonal chemical interactions

Chem. Commun. - 24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03398A, CommunicationNicolas Luisier, Kurt Schenk, Kay Severin
A thermoresponsive organogel was obtained by orthogonal assembly of four compounds using dynamic covalent boronate ester and imine bonds, as well as dative boron-nitrogen bonds.
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Mn(III)/TEMPO-Co-Mediated Tandem Azidation/1,2-Carbon Migration Reaction of Allylic Silyl Ethers

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04707A, CommunicationZhi-Min Chen, Zhen Zhang, Yong Qiang Tu, Ming-Hui Xu, Fu-Min Zhang, Chen-Chen Li, Shao-Hua Wang
A novel Mn(III)/TEMPO-co-mediated tandem azidation/1,2-carbon migration reaction of allylic silyl ethers with unactivated C=C bond has been explored, generating [small alpha]-aryl/alkyl [small beta]-azido ketones with an [small alpha]-quaternary stereocenter. Substrates with activated enolate-type...
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Transforming polyethylenimine into a pH-switchable hydrogel by additional supramolecular interactions

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03281K, CommunicationCarsten Schmuck, Fleischer Matthias
Attaching a self-complementary zwitterionic supramolecular binding site to the amino groups of polyethyleneimine leads to a pH switchable hydrogel as dimerization of the zwitterions introduces additional crosslinks between the polymer...
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Catalyst free silica templated porous carbon nanoparticles from bio-waste materials

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04378B, CommunicationANUJ KUMAR, Gurumurthy Hegde, SHARMA ARUNI ABDUL MANAF, NGAINI ZAINAB, KORADA V SHARMA
Porous Carbon Nanoparticles (PCNs) with well-developed microporosity were obtained from bio-waste oil palm leaves (OPL) using single step pyrolysis in nitrogen atmosphere at 500-600 oC in tube-furnace without any catalysis...
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Pd Nanoparticle Concentration Dependent Self-assembly of Pd@SiO2 Nanoparticles into Leaching Resistant Microcubes

Chem. Commun. - 24 July, 2014 - 15:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04124K, CommunicationAbheek Datta, Anustup Sadhu, Subhankar Santra, S M Shivaprasad, Swadhin K Mandal, Sayan Bhattacharyya
Pd NP concentration guided the self-assembly of core-shell Pd@SiO2 nanoparticles (NPs) into microcubes. The Pd NPs were stacked by molten dodecyltrimethylammonium bromide (DTAB) to create the SiO2 envelope. The microcubes...
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Flavin-catalyzed aerobic oxidation of sulfides and thiols with formic acid/triethylamine

Chem. Commun. - 24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05216A, CommunicationShun-Ichi Murahashi, Dazhi Zhang, Hiroki Iida, Toshio Miyawaki, Masaaki Uenaka, Kenji Murano, Kanji Meguro
An efficient and practical method for flavin-catalyzed aerobic oxidation of sulfides and thiols with formic acid/TEA is described.
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Zero-field slow magnetic relaxation in a uranium(III) complex with a radical ligand

Chem. Commun. - 24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04486J, CommunicationJoana T. Coutinho, Maria A. Antunes, Laura C. J. Pereira, Joaquim Marcalo, Manuel Almeida
Single-molecule-magnet behaviour in [U(TpMe2)2(bipy[radical dot])], a U(III) complex with a radical bipyridine ligand, having magnetic contributions from both the metal and the ligand.
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Mechanochemical C-H bond activation: rapid and regioselective double cyclopalladation monitored by in situ Raman spectroscopy

Chem. Commun. - 24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04423A, CommunicationMarina Juribasic, Krunoslav Uzarevic, Davor Gracin, Manda Curic
The first solid-state C-H bond activation by palladium(II) acetate resulting in efficient and regioselective cyclopalladation of asymmetrically substituted azobenzene was monitored by in situ solid-state Raman spectroscopy.
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Oxidative skeletal rearrangement of 1,1[prime or minute]-binaphthalene-2,2[prime or minute]-diamines (BINAMs) via C-C bond cleavage and nitrogen migration: a versatile synthesis of U-shaped azaacenes

Chem. Commun. - 24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04911J, CommunicationYouhei Takeda, Masato Okazaki, Satoshi Minakata
An oxidative skeletal rearrangement of 1,1[prime or minute]-binaphthalene-2,2[prime or minute]-diamines (BINAMs) that involves the cleavage of a strong C-C single bond of the binaphthalene unit and the nitrogen migration has been discovered.
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The synthesis of organic charge transfer hetero-microtubules by crack welding

Chem. Commun. - 24 July, 2014 - 15:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04602A, CommunicationJ. Kim, J. Chung, J. Hyon, T. Kwon, C. Seo, J. Nam, Y. Kang
The strain-induced cracks in organic microtubules composed of an organic charge transfer complex were selectively welded via the formation of secondary charge transfer complexes.
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