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30 April 2008
Issue 4, 2008 of Green Chemistry features selected papers presented at the 3rd International Conference on Green and Sustainable Chemistry
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Contents list for Green Chemistry, issue 5, 2008
Front cover
Green Chem., 2008, 10, 473
DOI: 10.1039/b806319m
Contents and Chemical Technology
Green Chem., 2008, 10, 475
DOI: 10.1039/b806320f
Editorial
Is catalysis in ionic liquids a potentially green technology?
Green Chem., 2008, 10, 483
DOI: 10.1039/b805586f
Professor Tom Welton discusses the whether catalysis in ionic liquids can be a green technology.
Critical Review
Catalysts with ionic tag and their use in ionic liquids
Radovan 
ebesta, Iveta Kmentová and tefan Toma,
Green Chem., 2008, 10, 484
DOI: 10.1039/b801456f
Homogenous supported catalysts combine features of both homogeneous and heterogeneous catalysis. Ionically-tagged catalysts in ionic liquids offer several advantages, such as high catalytic activities and selectivities, easy product isolation and catalyst recyclability.
Communication
Water-in-ionic liquid microemulsions as a new medium for enzymatic reactions
Muhammad Moniruzzaman, Noriho Kamiya, Kazunori Nakashima and Masahiro Goto,
Green Chem., 2008, 10, 497
DOI: 10.1039/b802501k
Enzymes can be solubilized in ionic liquids (ILs) by the formation of water domains in a hydrophobic IL with an anionic sodium bis(2-ethyl-1-hexyl) sulfosuccinate (AOT) surfactant. The catalytic activity of one of the enzymes studied (lipase PS) became higher than in microemulsions of AOT in isooctane.
Papers
Ionic liquids for liquid-in-glass thermometers
Héctor Rodríguez, Margaret Williams, John S. Wilkes and Robin D. Rogers,
Green Chem., 2008, 10, 501
DOI: 10.1039/b800366a
Ionic liquids can constitute a potentially green alternative to the fluids currently used in liquid-in-glass thermometers, additionally allowing for a high degree of customization of these devices.
Cytotoxicity of selected imidazolium-derived ionic liquids in the human Caco-2 cell line. Sub-structural toxicological interpretation through a QSAR study
Andrés García-Lorenzo, Emilia Tojo, José Tojo, Marta Teijeira, Francisco J. Rodríguez-Berrocal, Maykel Pérez González and Vicenta S. Martínez-Zorzano,
Green Chem., 2008, 10, 508
DOI: 10.1039/b718860a
A group of imidazolium-derived ILs was tested for their cytotoxicity in the Caco-2 human cell line. Using the experimental data we developed a QSAR model which was used to elucidate the structural factors that govern the toxicity of these compounds.
Microwave-assisted synthesis of oligothiophene semiconductors in aqueous media using silica and chitosan supported Pd catalysts
Silvia Alesi, Francesca Di Maria, Manuela Melucci, Duncan J. Macquarrie, Rafael Luque and Giovanna Barbarella,
Green Chem., 2008, 10, 517
DOI: 10.1039/b718776a
Highly pure thiophene semiconductors were prepared by an innovative microwave-assisted methodology based on Suzuki coupling, using silica and chitosan supported palladium catalysts in aqueous media.
Selective extraction of neutral nitrogen compounds found in diesel feed by 1-butyl-3-methyl-imidazolium chloride
Li-Li Xie, Alain Favre-Reguillon, Xu-Xu Wang, Xianzhi Fu, Stéphane Pellet-Rostaing, Guy Toussaint, Christophe Geantet, Michel Vrinat and Marc Lemaire,
Green Chem., 2008, 10, 524
DOI: 10.1039/b800789f
BMIm+Cl- have been used for the selective extraction of neutral N-compounds found in diesel feed. Elimination of such HDS inhibitors could lead to improvement of the deep HDS process.
Isosorbide as a novel polar head derived from renewable resources. Application to the design of short-chain amphiphiles with hydrotropic properties
Ying Zhu, Morgan Durand, Valérie Molinier and Jean-Marie Aubry,
Green Chem., 2008, 10, 532
DOI: 10.1039/b717203f
The potential use of isosorbide, an original diol readily obtained by the double dehydration of sorbitol, has been investigated for the synthesis of novel amphiphilic species.
Isolute® Si-carbonate catalyzes the nitronate addition to both aldehydes and electron-poor alkenes under solvent-free conditions
Roberto Ballini, Giovanna Bosica, Alessandro Palmieri, Ferdinando Pizzo and Luigi Vaccaro,
Green Chem., 2008, 10, 541
DOI: 10.1039/b719477c
Commercially available ISOLUTE® Si-carbonate catalyzes both nitroaldol and Michael reactions, from nitroalkanes and under solvent-free conditions, yielding nitroalkanols and 
-nitro-functionalized carbonyl and cyano derivatives
New rhodium catalytic systems with trifluoromethyl phosphite derivatives for the hydroformylation of 1-octene in supercritical carbon dioxide
Clara Tortosa Estorach, Arantxa Orejón and Anna M. Masdeu-Bultó,
Green Chem., 2008, 10, 545
DOI: 10.1039/b717346f
Hydroformylation of 1-octene in supercritical carbon dioxide was performed using new soluble rhodium-phosphite catalytic systems.
Hydrous ruthenium oxide supported on Co3O4 as efficient catalyst for aerobic oxidation of amines
Feng Li, Jing Chen, Qinghong Zhang and Ye Wang,
Green Chem., 2008, 10, 553
DOI: 10.1039/b715627h
The hydrous RuO2 catalyst dispersed on Co3O4 can catalyse the selective oxidation of amines efficiently by oxygen or air. The catalyst is recyclable and can be operated under solvent-free conditions.
Aqueous/organic cross coupling: Sustainable protocol for Sonogashira reactions of heterocycles
Christoph A. Fleckenstein and Herbert Plenio,
Green Chem., 2008, 10, 563
DOI: 10.1039/b800154e
The water soluble Pd complex of dicyclohexyl(2-sulfo-9-(3-(4-sulfophenyl)propyl)-9H-fluoren-9-yl)phosphine was used for an efficient copper free and sustainable reaction protocol for Sonogashira cross couplings of heterocyclic aryl chlorides and bromides.
Purification of chemical feedstocks by the removal of aerial carbonyl sulfide by hydrolysis using rare earth promoted alumina catalysts
Hongmei Huang, Nicola Young, B. Peter Williams, Stuart H. Taylor and Graham Hutchings,
Green Chem., 2008, 10, 571
DOI: 10.1039/b717031a
Al2O3 (?) is an effective commercial catalyst for COS hydrolysis and addition of Y2O3 [(¦) 3%, (?) 10%] leads to enhancement in catalytic activity as a result of increased basicity.
A new separation method: combination of CO2 and surfactant aqueous solutions
Xiaoying Feng, Jianling Zhang, Siqing Cheng, Chaoxing Zhang, Wei Li and Buxing Han,
Green Chem., 2008, 10, 578
DOI: 10.1039/b714164e
Phenol and vanadium-8-hydroxyquinoline complexes in aqueous solutions can be separated efficiently by combination of CO2 and Triton X-100. Also, gold nanoparticles synthesized in Triton X-100 micellar solutions can be recovered by adding CO2 and the surfactant remains in the solution. This new separation method has wide potential applications.
Imidazolium based ionic liquids in soils: effects of the side chain length on wheat (Triticum aestivum) and cress (Lepidium sativum) as affected by different clays and organic matter
Marianne Matzke, Stefan Stolte, Jürgen Arning, Ute Uebers and Juliane Filser,
Green Chem., 2008, 10, 584
DOI: 10.1039/b717811e
This study checked the influence of clay minerals and organic matter on the toxicity of imidazolium based ionic liquids for wheat (Triticum aestivum) and cress (Lepidium sativum). These experiments should help to enlarge the knowledge base on fate and behavior of ionic liquids in the terrestrial environment.
Solar thermochemical reactions: four-component synthesis of polyhydroquinoline derivatives induced by solar thermal energy
Ramadan Ahmed Mekheimer, Afaf Abdel Hameed and Kamal Usef Sadek,
Green Chem., 2008, 10, 592
DOI: 10.1039/b715126h
The synthesis of polyhydroquinoline derivatives via a four-component unsymmetric Hantzsch reaction induced by solar thermal energy is reported.
Back matter
Green Chem., 2008, 10, 594
DOI: 10.1039/b806321b
Back cover
Green Chem., 2008, 10, 595
DOI: 10.1039/b806322m
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