Articles from Wiley
Synthesis and Characterization of Three-Dimensional Porous Cu@Pt and Cu@Pt-Ru Catalysts for Methanol Oxidation
Now in 3D! Highly porous Cu foams were used as templates for the fabrication of pseudo core–shell Cu@Pt and Cu@Pt-Ru unsupported electrodes by galvanic replacement. The as-prepared 3D electrodes were evaluated for methanol oxidation in acid media at different temperatures. The trimetallic electrode exhibits higher activities compared to the bimetallic one and better poisoning tolerance.
Andrea E. Alvarez, Juan Manuel Sieben, Marta M. E. Duarte
ChemCatChem, January 23, 2017, DOI: 10.1002/cctc.201601556. Read article
The weakly bound is the key: The reactivity of well-ordered FeO(1 1 1) films on Au(1 1 1) in low temperature CO oxidation was found to correlate with the amount of so-called “weakly bound oxygen” formed under oxygen-rich conditions, both showing a volcano type dependence on the film coverage. Comparison with Pt(1 1 1) supported films revealed the complex role of a metal support on reactivity.
Xuefei Weng, Ke Zhang, Qiushi Pan, Yulia Martynova, Shamil Shaikhutdinov, Hans-Joachim Freund
ChemCatChem, January 23, 2017, DOI: 10.1002/cctc.201601447. Read article
Synthesis of Chiral Polyamides Containing an (<i>R</i>,<i>R</i>)-1,2-Diphenylethylenediamine Monosulfonamide Structure and Their Application to Asymmetric Transfer Hydrogenation Catalysis
It DPENs on the ligand: Asymmetric transfer hydrogenation of a cyclic sulfonamide is efficiently catalyzed by a chiral (R,R)-1,2-diphenylethylenediamine monotoluenesulfonamide (TsDPEN) polymer–metal complex to give an optically active cyclic sulfonylamine with quantitative conversion and high enantioselectivity. The polymer catalyst can be easily recovered and reused several times without any loss in catalytic activity or enantioselectivity.
Shinichi Itsuno, Shotaro Takahashi
ChemCatChem, January 23, 2017, DOI: 10.1002/cctc.201601220. Read article
Superior Catalytic Performance of Hierarchically Micro-Meso-Macroporous CuAlPO-5 for the Oxidation of Aromatic Amines under Mild Conditions
A bit of yin, a bit of yang: Hierarchically micro-meso-macroporous CuAlPO-5 exhibits higher selectivity for oxidation products than homogeneous Cu catalysts owing to its shape selectivity and higher catalytic activity than the traditional microporous CuAlPO-5 catalyst because of improved diffusion of bulky molecules in the catalyst.
Qingping Ke, Mingzhou Wu, Huizhen Yu, Guanzhong Lu
ChemCatChem, January 23, 2017, DOI: 10.1002/cctc.201601157. Read article
Selective Hydrogenation of Nitriles to Primary Amines Catalyzed by a Polysilane/SiO<sub>2</sub>-Supported Palladium Catalyst under Continuous-Flow Conditions
Primary aim: Continuous flow hydrogenation of nitriles to primary amines over heterogeneous Pd catalyst is described. A newly developed DMPSi-Pd/SiO2 catalyst demonstrates high activity and selectivity, broad substrate scope, and long lifetime without any Pd leaching.
Yuki Saito, Haruro Ishitani, Masaharu Ueno, Shū Kobayashi
ChemistryOpen, January 23, 2017, DOI: 10.1002/open.201600166. Read article
Synthesis of <i>C</i><sub>2</sub>-Symmetric Diphosphormonoamidites and Their Use as Ligands in Rh-Catalyzed Hydroformylation: Relationships between Activity and Hydrolysis Stability
Stability versus reactivity: Diphosphoramidites that are highly resistant towards hydrolysis and also perform highly efficiently as monodentate ligands in rhodium-catalyzed hydroformylation of n-octene mixtures have been prepared.
Galina Morales Torres, Stephan Behrens, Dirk Michalik, Detlef Selent, Anke Spannenberg, Susan Lühr, Katrin Marie Dyballa, Robert Franke, Armin Börner
ChemistryOpen, January 23, 2017, DOI: 10.1002/open.201600152. Read article
Switching of Regioselectivity in a Perfluorohexyl Iodide Mediated Synthesis of Phenylimidazo[1,2-<i>a</i>]pyridines
A protocol for the synthesis of 3-phenylimidazo[1,2-a]pyridines through the perfluorohexyl iodide mediated coupling of 2-aminopyridines and phenylacetylenes is reported; the reaction proceeds through in situ iodination of the terminal alkyne. The iodination reverses the polarity by generating a transient electrophilic iodoalkyne, which alters the regioselectivity of the phenyl group.
Irwan Iskandar Roslan, Gaik-Khuan Chuah, Stephan Jaenicke
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601586. Read article
Nickel(II)-Catalyzed Enantioselective 1,3-Dipolar Cycloaddition of Nitrones with α,β-Unsaturated Acylcarboxylates
Lei Xie, Xuan Yu, Jiaqi Li, Zhenhua Zhang, Zhaohai Qin, Bin Fu
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601540. Read article
An Enantio- and Diastereoselective Mannich/Pictet–Spengler Sequence To Form Spiro[piperidine-pyridoindoles] and Application to Library Synthesis
Alejandra Riesco-Domínguez, Nick van der Zwaluw, Daniel Blanco-Ania, Floris P. J. T. Rutjes
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601508. Read article
Highly Regioselective Monoacylation of Unprotected Glucopyranoside Using Transient Directing-Protecting Groups
A method for the green, efficient, and highly regioselective functionalization of various glycopyranosides is presented. The method takes advantage of selected boronic acids as temporary protecting groups. Using this approach, a scalable procedure leading to a pure single regioisomer from unprotected methyl α-d-glucopyranoside was developed.
Sylvain Rocheleau, Joshua Pottel, Igor Huskić, Nicolas Moitessier
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601457. Read article
Natalia M. Padial, Carmen Hernández-Cervantes, Juan Muñoz-Bascón, Esther Roldán-Molina, Mireya García-Martínez, Ana Belén Ruiz-Muelle, Antonio Rosales, Míriam Álvarez-Corral, Manuel Muñoz-Dorado, Ignacio Rodríguez-García, J. Enrique Oltra
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601444. Read article
Hoveyda-Type Quinone-Containing Complexes – Catalysts to Prevent Migration of the Double Bond under Metathesis Conditions
Anna Kajetanowicz, Mariusz Milewski, Joanna Rogińska, Roman Gajda, Krzysztof Woźniak
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601344. Read article
Three-Component Povarov Reaction with Alcohols as Alkene Precursors: Efficient Access to 2-Arylquinolines
Xinjian Li, Qi Xing, Pan Li, Jingjing Zhao, Fuwei Li
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601343. Read article
Synthesis of Nontoxic Fluorous Sphingolipids as Molecular Probes of Exogenous Metabolic Studies for Rapid Enrichment by Fluorous Solid Phase Extraction
Metabolites of sphingolipids (SLs) are known to act as signaling molecules called lipid mediators, which regulate cell behavior. The first synthesis of SLs bearing perfluoroalkyl (fluorous) chains is reported. These derivatives could be applicable in the functional analysis of their metabolic mechanisms by using fluorous solid-phase extraction (FSPE).
Shota Saito, Yuta Murai, Seigo Usuki, Masafumi Yoshida, Mostafa A. S. Hammam, Susumu Mitsutake, Kohei Yuyama, Yasuyuki Igarashi, Kenji Monde
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601302. Read article
Aromatic Esters, Carbinols, and Derivatives Thereof with Perfluorohexyl Residues as Alternatives to Perfluoroalkanecarboxylic and -sulfonic Acids
Torben Alpers, Thomas W. T. Muesmann, Oliver Temme, Jens Christoffers
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601298. Read article
Harnessing Cascade Suzuki-Cyclization Reactions of Pyrazolo[3,4-<i>b</i>]pyridine for the Synthesis of Tetracyclic Fused Heteroaromatics
Hubert Lavrard, Florence Popowycz
Eur. J. Org. Chem., January 23, 2017, DOI: 10.1002/ejoc.201601242. Read article
Two vanadium(V) complexes, based on a common branched diaminobis(phenolato) ligand but differing in their labile ligands, are highly cytotoxic toward human colon and ovarian cells, including cells that are resistant to cisplatin. Their rapid loss of the labile group in water implies that, unlike the chelating ligand, the labile ligand type is insignificant.
Gilad Nahari, Lilia Reytman, Laure Vendier, Edit Y. Tshuva, Christian Lorber
Eur. J. Inorg. Chem., January 23, 2017, DOI: 10.1002/ejic.201601276. Read article
Resorcinarene-Based <i>o</i>-Biarylphosphines in Palladium-Catalysed Suzuki–Miyaura Cross-Coupling Reactions of Bulky Substrates
The introduction of a 2-(dicyclohexylphosphino)phenyl unit as a substituent directly attached to a resorcinarene cavitand has been found to be a useful Buchwald-type ligand for the palladium-catalysed Suzuki–Miyaura cross-coupling of bulky aryl chlorides with sterically hindered arylboronic acids. This phosphine was found to be a superior ligand to SPhos, an analogue devoid of a cavity.
Fethi Elaieb, David Sémeril, Dominique Matt
Eur. J. Inorg. Chem., January 23, 2017, DOI: 10.1002/ejic.201601270. Read article
The synthesis of new mono- and heterobimetallic lanthanoid cluster compounds is reported. The ratio of the two lanthanoids in the heterobimetallic complexes appears to be dependent on the size and electron density of the metal atoms.
Philip C. Andrews, Guillaume Bousrez, Peter C. Junk, Dominique T. Thielemann, Melissa V. Werrett
Eur. J. Inorg. Chem., January 23, 2017, DOI: 10.1002/ejic.201601264. Read article
Vitamin B<sub>12</sub>–Metal Conjugates for Targeted Chemotherapy and Diagnosis: Current Status and Future Prospects
The abnormal demand for vitamin B12 in tumor cells can be exploited by designing tailored cobalamin-metallodrug conjugates in order to achieve targeted delivery into the diseased tissues for therapeutic and diagnostic applications
Andrea Pettenuzzo, Rebecca Pigot, Luca Ronconi
Eur. J. Inorg. Chem., January 23, 2017, DOI: 10.1002/ejic.201601217. Read article