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Green Chemistry

The home of cutting-edge research on the development of alternative sustainable technologies.
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Green Chemistry,
01 October 2012 , Issue 10,
Page 2649 to 2952
Green Chem., 2012, 14, 2665-2671
DOI: 10.1039/C2GC35928F, Tutorial Review
The present review highlights recent advances in the copolymerization of carbon dioxide (CO2) and epoxides (oxiranes) to produce polycarbonates.
 
Green Chem., 2012, 14, 2672-2676
DOI: 10.1039/C2GC35713E, Communication
Inexpensive copper(II) chloride catalyzes the solvent-free coupling of equimolar amounts of amines, alkynes, and cyclohexanone such that the only by-product is one equivalent of water.
 
Green Chem., 2012, 14, 2677-2681
DOI: 10.1039/C2GC35741K, Communication
We report the first C–H hydroarylation of in situ generated ortho-quinone methides with electron-rich arenes. The reaction takes place in water without any catalyst, and is highly regioselective. Ionic and non-ionic additives provide an increase in reaction rate, yield, and regioselectivity.
 
Ela Eroglu, Vipul Agarwal, Michael Bradshaw, Xianjue Chen, Steven M. Smith, Colin L. Raston and K. Swaminathan Iyer
Green Chem., 2012, 14, 2682-2685
DOI: 10.1039/C2GC35970G, Communication
Electrospinning has been employed for the production of chitosan nanofibers, which are effective for immobilizing microalgal cells. This composite material is used as a durable model system for nitrate removal from liquid effluents.
 
Green Chem., 2012, 14, 2686-2690
DOI: 10.1039/C2GC35950B, Communication
The laccase-catalyzed oxidation of 1,4-dihydropyridines to pyridines using air as the oxidant has been developed.
 
Green Chem., 2012, 14, 2691-2698
DOI: 10.1039/C2GC36021G, Communication
A chromatography-free four-component reaction protocol in water has been developed to afford benzylpyrazolyl coumarins, intermolecular H-bonding has also been investigated through crystal structure analysis of the asymmetric unit.
 
Francisco Alonso, Yanina Moglie, Gabriel Radivoy and Miguel Yus
Green Chem., 2012, 14, 2699-2702
DOI: 10.1039/C2GC35898K, Communication
The hydrophosphanation of alkenes is accomplished in the absence of a catalyst, under solvent-free conditions and in a regioselective manner.
 
Green Chem., 2012, 14, 2703-2705
DOI: 10.1039/C2GC36069A, Communication
High pressure was applied to accelerate the copper-free cycloaddition of azide and alkyne groups pre-organized in the crystalline state.
 
Bin Li, Karthik Devaraj, Christophe Darcel and Pierre H. Dixneuf
Green Chem., 2012, 14, 2706-2709
DOI: 10.1039/C2GC36111F, Communication
Monoalkenylation of arene C–H bonds directed by an oxazoline group to afford bifunctional alkenes is described using [RuCl2(p-cymene)]2 as the catalyst in the presence of 1,1′-binaphthyl-2,2′-diyl hydrogenphosphate (BNPAH) and of Cu(OAc)2·H2O under air. This reaction takes place under mild conditions in ethanol at 80 °C and tolerates the oxazoline function.
 
Hua Cao, Huan-Feng Jiang, Xiao-Song Zhou, Chao-Rong Qi, Yuan-Guang Lin, Jian-Yong Wu and Qi-Mei Liang
Green Chem., 2012, 14, 2710-2714
DOI: 10.1039/C2GC35697J, Communication
An environmentally friendly CuO/CNTs-catalyzed approach to synthesize furan derivatives has been developed.
 
Verónica de la Fuente, Nicolas Fleury-Brégeot, Sergio Castillón and Carmen Claver
Green Chem., 2012, 14, 2715-2718
DOI: 10.1039/C2GC35732A, Communication
An efficient catalytic system to perform allylic alkylation in ionic liquids based on a Pd/phosphine-imidazoline system has been designed.
 
Christian Lehmann, Fabrizio Sibilla, Zaira Maugeri, Wolfgang R. Streit, Pablo Domínguez de María, Ronny Martinez and Ulrich Schwaneberg
Green Chem., 2012, 14, 2719-2726
DOI: 10.1039/C2GC35790A, Paper
Directed evolution was used for improving a cellulase (CelA2), which displayed afterwards high glycosidic activity in aqueous solutions of deep eutectic solvents (DES, choline chloride : glycerol) and concentrated seawater.
 
Maurizio Selva, Sandro Guidi, Alvise Perosa, Michela Signoretto, Pete Licence and Thomas Maschmeyer
Green Chem., 2012, 14, 2727-2737
DOI: 10.1039/C2GC35983A, Paper
The continuous-flow metathesis of 1-octene occurs selectively on 7-tetradecene (>90%) in the presence of CO2 as a carrier and Re2O7/γ-Al2O3 as a catalyst.
 
Green Chem., 2012, 14, 2738-2746
DOI: 10.1039/C2GC36265A, Paper
Detrimental degradation of HMF in the acetate ionic liquid is turned into highly selective and efficient biorefinery upgrading into DHMF, a promising C12 kerosene/jet fuel intermediate, through N-heterocyclic carbene catalysis.
 
Jurjen Spekreijse, Jérôme Le Nôtre, Jacco van Haveren, Elinor L. Scott and Johan P. M. Sanders
Green Chem., 2012, 14, 2747-2751
DOI: 10.1039/C2GC35498E, Paper
Electron poor cinnamates, accessible from phenylalanine, were successfully converted into bulk chemicals using metathesis as a key step.
 
Yu-Nong Li, Jin-Quan Wang, Liang-Nian He, Zhen-Zhen Yang, An-Hua Liu, Bing Yu and Chao-Ran Luan
Green Chem., 2012, 14, 2752-2758
DOI: 10.1039/C2GC35845J, Paper
Hydrogen bonding-promoted dehydration of fructose to HMF was performed in pure ionic liquid without any other additive or catalyst.
 
C. V. Loricera, P. Castaño, A. Infantes-Molina, I. Hita, A. Gutiérrez, J. M. Arandes, J. L. G. Fierro and B. Pawelec
Green Chem., 2012, 14, 2759-2770
DOI: 10.1039/C2GC35901D, Paper
This work describes the effect of the support (TiO2, hybrid 2TiO2–SiO2, SBA-15 and SBA-15 decorated with TiO2 particles) on the catalytic activity of ZnNi catalysts in the gas-phase hydrodeoxygenation (HDO or O-removal) of phenol and the liquid-phase hydrodearomatization (HDA) of synthetic diesel.
 
Green Chem., 2012, 14, 2771-2775
DOI: 10.1039/C2GC35669D, Paper
Functional resins have proven to be powerful synthetic tools that simplify purification, but traditional handling of these resins restricts their utility, as hazardous organic solvents are needed to swell the resin. Ball milling the functional resin exposes the functional groups as a function of surface area.
 
Frederik E. A. Van Waes, J. Drabowicz, A. Cukalovic and Christian V. Stevens
Green Chem., 2012, 14, 2776-2779
DOI: 10.1039/C2GC35555H, Paper
An efficient, catalyst-free continuous flow procedure for the condensation of acid chlorides and alcohols was developed.
 
Green Chem., 2012, 14, 2780-2789
DOI: 10.1039/C2GC35661A, Paper
Cheaper and safer autogeneous hydrogenolysis of glycerol to PDO is demonstrated over a multifunctional Cu–Al catalyst with a TOS of 450 h.
 
Green Chem., 2012, 14, 2790-2798
DOI: 10.1039/C2GC35519A, Paper
Synthesis of a p-type N-doped ZnO photocatalyst for hydrogen production from H2S waste using solar light.
 
Green Chem., 2012, 14, 2799-2806
DOI: 10.1039/C2GC35796H, Paper
Two fully bio-based benzoxazine monomers are synthesized from guaiacol, furfurylamine and stearylamine. The resultant copolymer is a thermoset resin which has outstanding characteristics.
 
Michel Keller, Aurélien Hameau, Grégory Spataro, Sonia Ladeira, Anne-Marie Caminade, Jean-Pierre Majoral and Armelle Ouali
Green Chem., 2012, 14, 2807-2815
DOI: 10.1039/C2GC35832H, Paper
Efficient and recyclable palladium catalysts involving dendritic thiazolylphosphine ligands are able to avoid metal leaching in Suzuki couplings.
 
Green Chem., 2012, 14, 2816-2820
DOI: 10.1039/C2GC35811E, Paper
Cellulose was effectively converted to glucose in hydrophobic ionic liquids such as [TMPA][NTf2] in the presence of HCl and LiCl.
 
Green Chem., 2012, 14, 2821-2830
DOI: 10.1039/C2GC35805K, Paper
A new method for fractionation of liquefied products was proposed according to the molecular structure of the lignocellulosic biomass.
 

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