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14,157 Newest Publications in chemistry - a european journal

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Photomodulation of DNA‐templated supramolecular assemblies

03-Nov-2017 | Jenifer Rubio-Magnieto, Tuan-anh Phan, Mathieu Fossépré, Valérie Matot, Jérémie Knoops, Thibaut Jarrosson, Pascal Du ..., Chemistry - A European Journal, 2017

A new type of DNA ligand that contains a phosphate‐binding group and a photoresponsive azobenzene moiety is reported. When the azobenzene is in trans configuration, the ligand binds to the minor groove of a double‐stranded DNA, whereas it partially desorbs upon trans‐cis isomerization with ...

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Structural Tuning and Conformational Stability of Aromatic Oligoamide Foldamers

03-Nov-2017 | Riia Annala, Aku Suhonen, Heikki Laakkonen, Perttu Permi, Maija Nissinen, Chemistry - A European Journal, 2017

Abstract A series of aromatic oligoamide foldamers with two or three pyridine‐2,6‐dicarboxamide units as their main folding motifs and varying aromatic building blocks as linkers have been synthetized to study the effects of the structural variation on the folding properties and conformational ...

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Ortho‐Quinones and analogues thereof: Highly reactive intermediates for fast and selective biofunctionalization

25-Oct-2017 | Bruins Jorick, Bauke Albada, Floris Louis van Delft, Chemistry - A European Journal, 2017

Fast, selective and facile functionalization of biologically relevant molecules is a pursuit of ever‐growing importance. A promising approach in this regard employs the high reactivity of quinone and quinone analogues for fast conjugation chemistry via nucleophilic or cycloadditions. Combined ...

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Hybrid Surfactants with N‐Heterocyclic Carbene Heads as a Multifunctional Platform for Interfacial Catalysis

18-Oct-2017 | Sebastian Polarz, Adrian Donner, Kay Hagedorn, Lorenz Mattes, Markus Drechsler; Adrian Donner, Kay Hagedorn, Lorenz ..., Chemistry - A European Journal, 2017

Abstract Processing of substrates with different solvent compatibility is a persistent problem in homogeneous catalysis, in particular when one starting compound is water soluble and the other is not. A promising concept reported in the literature is micellar catalysis. However, the process of ...

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The Complex Solid‐state Landscape of Sodium Diatrizoate Hydrates

17-Oct-2017 | Mohd Nadzri Mohd Najib, Kevin Back, Katharina Edkins, Chemistry - A European Journal, 2017

Pharmaceutical sodium salts are prone to incorporate water into their crystal structure. The model compound diatrizoic acid monosodium salt, an X‐ray contrast agent, has been investigated in depth towards its interaction with water in the solid state. Five hydrates with water content ranging ...

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A Bifunctional Fluorogenic Rhodamine Probe for Proximity‐Induced Bioorthogonal Chemistry

16-Oct-2017 | Philipp Werther, Jasper S. Möhler, Richard Wombacher, Chemistry - A European Journal, 2017

Bioorthogonal reactions have emerged as a versatile tool in life sciences. The inverse electron demand Diels‐Alder reaction (DAinv) stands out due to the availability of reactants with very fast kinetics. However, highly reactive dienophiles suffer the disadvantage of being less stable and prone ...

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Remarkably High Stability of Late Actinide Dioxide Cations: Extending Chemistry to Pentavalent Berkelium and Californium

12-Oct-2017 | Phuong Diem Dau, Monica Vasiliu, Kirk Peterson, David Dixon, John K Gibson, Chemistry - A European Journal, 2017

Actinyl chemistry is extended beyond Cm to BkO2+ and CfO2+ via transfer of an O atom from NO2 to BkO+ or CfO+, establishing a surprisingly high lower limit of 73 kcal/mol for the dissociation energies, D[O‐(BkO+)] and D[O‐(CfO+)]. DFT and CCSD(T) computations are in accord with the observed ...

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Frontispiece: Modular Bi‐Directional One‐Pot Strategies for the Diastereoselective Synthesis of Structurally Diverse Collections of Constrained β‐Carboline‐Benzoxazepines

12-Oct-2017 | Vunnam Srinivasulu, Ralph Mazitschek, Noor M. Kariem, Amarnath Reddy, Wael M. Rabeh, Liang Li, Matthew John O'Connor ..., Chemistry - A European Journal, 2017

Modular access to a range of tailored heterocyclic scaffolds with diverse 3D‐complexity is provided by a novel cascade one‐pot methodology based on Pictet–Spengler/aza‐Michael addition and Schiff base/aza‐Michael addition/reduction protocols. The versatile approach is highly ...

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Construction of Condensed Polycyclic Aromatic Frameworks through Intramolecular Cycloaddition Reactions Involving Arynes Bearing an Internal Alkyne Moiety

10-Oct-2017 | Suguru Yoshida, Keita Shimizu, Keisuke Uchida, Yuki Hazama, Kazunobu Igawa, Katsuhiko Tomooka, Takamitsu Hosoya, Chemistry - A European Journal, 2017

Abstract Facile synthetic methods for condensed polycyclic aromatic compounds via aryne intermediates are reported. The generation of arynes bearing a (3‐arylpropargyl)oxy group from the corresponding o‐iodoaryl triflate‐type precursors efficiently afforded arene‐fused oxaacenaphthene ...

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New architectures for designed catalysts:  Selective oxidation using AgAu nanoparticles on colloid‐templated silica

28-Sep-2017 | Cynthia M. Friend, Tanya Shirman, Judith Lattimer, Mathilde Luneau, Elijah Shirman, Christian Reece, Michael Aizenb ..., Chemistry - A European Journal, 2017

A highly modular synthesis of designed catalysts with controlled bimetallic nanoparticle size and composition and a well‐defined structural hierarchy is demonstrated. We show that these new catalysts architectures are significantly better than nanoporous dilute AgAu alloy catalysts (np ...

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