Archive for the ‘News’ Category

Top 10 most-accessed articles April–June 2013

The 10 most-accessed Green Chemistry articles between April and June 2013 were as follows:

Vegetables as biocatalysts in stereoselective hydrolysis of labile organic compounds
Björn Bohman, L. R. Cavonius and C. Rikard Unelius  
Green Chem., 2009, 11, 1900-1905
DOI: 10.1039/B913936B, Paper

Hydrolysis of cellulose to glucose by solid acid catalysts
Yao-Bing Huang and Yao Fu  
Green Chem., 2013, 15, 1095-1111
DOI: 10.1039/C3GC40136G, Tutorial Review

Deconstruction of lignocellulosic biomass with ionic liquids
Agnieszka Brandt, John Gräsvik, Jason P. Hallett and Tom Welton  
Green Chem., 2013, 15, 550-583
DOI: 10.1039/C2GC36364J, Critical Review

FeIII–TAML-catalyzed green oxidative degradation of the azo dye Orange II by H2O2 and organic peroxides: products, toxicity, kinetics, and mechanisms
Naima Chahbane, Delia-Laura Popescu, Douglas A. Mitchell, Arani Chanda, Dieter Lenoir, Alexander D. Ryabov, Karl-Werner Schramm and Terrence J. Collins  
Green Chem., 2007, 9, 49-57
DOI: 10.1039/B604990G, Paper

The role of flow in green chemistry and engineering
Stephen G. Newman and Klavs F. Jensen  
Green Chem., 2013, 15, 1456-1472
DOI: 10.1039/C3GC40374B, Critical Review

Characterization and comparison of hydrophilic and hydrophobic room temperature ionic liquids incorporating the imidazolium cation
Jonathan G. Huddleston, Ann E. Visser, W. Matthew Reichert, Heather D. Willauer, Grant A. Broker and Robin D. Rogers  
Green Chem., 2001, 3, 156-164
DOI: 10.1039/B103275P, Paper

Copper on chitosan: a recyclable heterogeneous catalyst for azide–alkyne cycloaddition reactions in water
R. B. Nasir Baig and Rajender S. Varma  
Green Chem., 2013, 15, 1839-1843
DOI: 10.1039/C3GC40401C, Communication

A general and practical oxidation of alcohols to primary amides under metal-free conditions
Xiao-Feng Wu, Muhammad Sharif, Jian-Bo Feng, Helfried Neumann, Anahit Pews-Davtyan, Peter Langer and Matthias Beller  
Green Chem., 2013, 15, 1956-1961
DOI: 10.1039/C3GC40668G, Paper

Development of GSK’s reagent guides – embedding sustainability into reagent selection
Joseph P. Adams, Catherine M. Alder, Ian Andrews, Ann M. Bullion, Matthew Campbell-Crawford, Michael G. Darcy, John D. Hayler, Richard K. Henderson, Catriona A. Oare, Israil Pendrak, Anikó M. Redman, Leanna E. Shuster, Helen F. Sneddon and Matthew D. Walker  
Green Chem., 2013, 15, 1542-1549
DOI: 10.1039/C3GC40225H, Paper

Catalytic conversion of biomass to biofuels
David Martin Alonso, Jesse Q. Bond and James A. Dumesic  
Green Chem., 2010, 12, 1493-1513
DOI: 10.1039/C004654J, Critical Review

Take a look at the articles and then let us know your thoughts and comments below.

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Top 10 most-accessed articles March 2013

The 10 most-accessed articles in Green Chemistry for March 2013 were as follows:

Deconstruction of lignocellulosic biomass with ionic liquids
Agnieszka Brandt, John Gräsvik, Jason P. Hallett and Tom Welton  
Green Chem., 2013, 15, 550-583
DOI: 10.1039/C2GC36364J, Critical Review

Gamma-valerolactone, a sustainable platform molecule derived from lignocellulosic biomass
David Martin Alonso, Stephanie G. Wettstein and James A. Dumesic  
Green Chem., 2013, 15, 584-595
DOI: 10.1039/C3GC37065H, Critical Review
From themed collection Green Chemistry and the Environment

Catalytic applications of a versatile magnetically separable Fe–Mo (Nanocat-Fe–Mo) nanocatalyst
Manoj B. Gawande, Paula S. Branco, Isabel D. Nogueira, C. Amjad A. Ghumman, Nenad Bundaleski, Adérito Santos, Orlando M. N. D. Teodoro and Rafael Luque  
Green Chem., 2013, 15, 682-689
DOI: 10.1039/C3GC36844K, Paper

Green chemistry and the ocean-based biorefinery
Francesca M. Kerton, Yi Liu, Khaled W. Omari and Kelly Hawboldt  
Green Chem., 2013, 15, 860-871
DOI: 10.1039/C3GC36994C, Perspective

Chemodivergent, multicomponent domino reactions in aqueous media: L-proline-catalyzed assembly of densely functionalized 4H-pyrano[2,3-c]pyrazoles and bispyrazolyl propanoates from simple, acyclic starting materials
Pitchaimani Prasanna, Subbu Perumal and J. Carlos Menéndez  
Green Chem., 2013, 15, 1292-1299
DOI: 10.1039/C3GC37128J, Paper

Aqueous oxidation of alcohols catalysed by recoverable iron oxide nanoparticles supported on aluminosilicates
Fatemeh Rajabi, Antonio Pineda, Sareh Naserian, Alina Mariana Balu, Rafael Luque and Antonio A. Romero  
Green Chem., 2013, 15, 1232-1237
DOI: 10.1039/C3GC40110C, Paper

Reduction of aromatic and aliphatic nitro groups to anilines and amines with hypophosphites associated with Pd/C
Marc Baron, Estelle Métay, Marc Lemaire and Florence Popowycz  
Green Chem., 2013, 15, 1006-1015
DOI: 10.1039/C3GC37024K, Paper

Reduction of sulfoxides and pyridine-N-oxides over iron powder with water as hydrogen source promoted by carbon dioxide
Ran Ma, An-Hua Liu, Cheng-Bin Huang, Xue-Dong Li and Liang-Nian He  
Green Chem., 2013, 15, 1274-1279
DOI: 10.1039/C3GC40243F, Paper

Efficient three-component coupling catalysed by mesoporous copper–aluminum based nanocomposites
Jana Dulle, K. Thirunavukkarasu, Marjo C. Mittelmeijer-Hazeleger, Daria V. Andreeva, N. Raveendran Shiju and Gadi Rothenberg  
Green Chem., 2013, 15, 1238-1243
DOI: 10.1039/C3GC36607C, Paper

Removal of transition metals from rare earths by solvent extraction with an undiluted phosphonium ionic liquid: separations relevant to rare-earth magnet recycling
Tom Vander Hoogerstraete, Sil Wellens, Katrien Verachtert and Koen Binnemans  
Green Chem., 2013, 15, 919-927
DOI: 10.1039/C3GC40198G, Paper

Take a look at the articles, and then let us know your thoughts and comments below.

Fancy submitting your own work to Green Chemistry? You can submit online today, or email us with your ideas and suggestions.

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Green Chemistry impact factor reaches another record high of 6.8

We are delighted to announce that Green Chemistry’s Impact Factor* has risen to a new high of 6.8!

Walter Leitner, Chair of the Green Chemistry Editorial Board said of the news: “Once again, the impact factor for Green Chemistry has seen a significant increase, reaching an all-time high of 6.8. This is due to the excellent research of the community and the dedication of the authors to share their exciting results, the enormous efforts by the referees to ensure the highest quality, the distinguished profile of the journal and the tremendous and exceptionally professional job of the management office! Taking the impact factor as tool (not the goal) for a journal to measure the reception of its content by the community, I think we can all be proud of this development.”

We would like to thank all our authors, referees, readers and Editorial and Advisory Board  members for their help and support on the Journal.

Green Chemistry was launched 15 years ago and ever since has led the way publishing cutting edge research on the development of alternative sustainable technologies. We invite you to submit your latest research on sustainable chemistry and technology to Green Chemistry. 

Keep up-to-date with the latest content in Green Chemistry by registering for our free table of contents alerts. 

Read more about the 2012 Impact Factors on the RSC Publishing Blog.

*The Impact Factor provides an indication of the average number of citations per paper. Produced annually, Impact Factors are calculated by dividing the number of citations in a year by the number of citeable articles published in the preceding two years. Data based on 2012 Journal Citation Reports®, (Thomson Reuters, 2013).

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Green Chemistry issue 5 now available online!

Issue 5 of Green Chemistry is now available to read online.

The front cover (left) this month features work by Etienne Grau and Stefan Mecking from Konstanz, Germany. In their work, caryophyllene and humulene, renewable sesquiterpenes from clove oil, were subject to metathesis polymerization to yield non-crosslinked linear polymers with unique microstructures and low glass transition temperatures.

Read the research: Polyterpenes by ring opening metathesis polymerization of caryophyllene and humulene, E. Grau and S. Mecking, Green Chem., 2013, 15, 1112–1115, DOI: c3gc40300a

The inside front cover (right) this month features work by Thomas-Xavier Métro, Frédéric Lamaty and co-workers from Montpellier, France. Their paper describes an original liquid-assisted ball-milling methodology for peptide bond synthesis – avoiding toxic solvents and reactants – and its application to the synthesis of Leu-enkephalin.

Read the research: Environmentally benign peptide synthesis using liquid-assisted ball-milling: application to the synthesis of Leu-enkephalin, J. Bonnamour, T.-X. Métro, J. Martinez and F. Lamaty, Green Chem., 2013, 15, 1116–1120, DOI: c3gc40302e

Both of these articles are free to access for 6 weeks!

Keep up-to-date with the latest content in Green Chemistry by registering for our free table of contents alerts.

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Recycling rare earth elements using ionic liquids

Recycling old magnets, so that rare-earth metals can be re-used, could help to solve an urgent raw material supply problem in the electronics industry. Researchers from the University of Leuven, Belgium, have used ionic liquids to separate neodymium and samarium from transition metals like iron, manganese and cobalt – all elements that are used in the construction of permanent rare-earth magnets, which are found in electronic devices ranging from hard drives to air conditioners and wind turbines.

‘The process involves the liquid-liquid extraction of rare-earth metals from the other elements present in neodymium-iron-boron and samarium-cobalt magnets,’ explains Koen Binnemans who leads the group developing the process. ‘These other elements – including iron, cobalt, manganese, copper and zinc – are extracted into the ionic-liquid phase, while the rare-earth metals are left behind in the aqueous phase,’ he says, adding that the ionic liquid itself – trihexyl(tetradecyl)phosphonium chloride – can also be re-used, after the transition metals have been stripped out.

In traditional liquid-liquid extractions of metal ions, an aqueous phase containing the metal salt is mixed with an organic phase containing an extraction agent. Simple though they are, these processes use organic phases comprising flammable and volatile solvents, like toluene, kerosene or diethyl ether. Ionic liquids are far more environmentally friendly, having very low vapour pressure and non-flammability.

Read the full article in Chemistry World

Read the original journal article in Green Chemistry:

Removal of transition metals from rare earths by solvent extraction with an undiluted phosphonium ionic liquid: separations relevant to rare-earth magnet recycling
Tom Vander Hoogerstraete,  Sil Wellens,  Katrien Verachtert and Koen Binnemans
Green Chem., 2013,15, 919-927

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Green Chemistry Issue 4 now online

Green Chemistry issue 4 is now online and you can read it here.

Issue 4 front coverThe cover features work by François Jérôme and co-workers from France.  Their Paper, ‘Pretreatment of microcrystalline cellulose by ultrasounds: effect of particle size in the heterogeneously-catalyzed hydrolysis of cellulose to glucose’ demonstrates that activity of a sulfonated carbon in the heterogeneously-catalyzed hydrolysis of cellulose was greatly improved by assistance of ultrasound. The paper demonstrates that the sonication method was as effective as conventional pre-treatments such as ball-milling or ionic liquids.

Pretreatment of microcrystalline cellulose by ultrasounds: effect of particle size in the heterogeneously-catalyzed hydrolysis of cellulose to glucose
Qinghua Zhang, Maud Benoit, Karine De Oliveira Vigier, Joël Barrault, Gwenaëlle Jégou, Michel Philippe and François Jérôme, Green Chem., 2013, 15, 963-969

Issue 4 inside cover

The inside front cover highlights a review article entitled ‘Green chemistry and the ocean-based biorefinery’ by Fran Kerton and co-workers at the Memorial University of Newfoundland in Canada.  This review highlights that competition for land use could be minimized if marine sourced feedstocks were used for chemicals and materials production rather than crops grown on fertile land. It focuses on achievements and potential opportunities surrounding the use of algae and waste from shellfish and finfish processing.

Green chemistry and the ocean-based biorefinery
Francesca M. Kerton, Yi Liu, Khaled W. Omari and Kelly Hawboldt, Green Chem., 2013, 15, 860-871

These articles are free to access for 6 weeks!

Keep up-to-date with the latest content in Green Chemistry by registering for our free table of contents alerts.

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‘Super solvents’ shortlisted for most important British innovation of the 21st Century

Work by scientists from Queen’s University Belfast on ionic liquid chemistry is in the running to be named the most important British innovation of the 21st Century. 

The work of staff in the Queen’s University Ionic Liquid Laboratories (QUILL) Research Centre is up against 11 other innovations from across the United Kingdom battling it out in a public vote to find the one that will have the greatest impact in the coming century. The vote is part of the Science Museum’s Initiative on Great British past and future Innovations. 

Ionic liquids are salts which can remain liquid at room temperature and do not form vapours, and so can be used as non-polluting alternatives to conventional solvents.  At QUILL, a team of nearly 100 scientists are exploring the potential of these green solvents and Fortune 100 energy giant Petronas is already using the technology in its plants.  The mercury removal unit, using 15 tons of supported ionic liquid, was developed by a team led by Professor Ken Seddon, Co-Director of QUILL at Queen’s, and Dr John Holbrey also from QUILL, who were listed last year as the number one and two chemists in the UK based on citations of their work.Professor Ken Seddon said: “Being shortlisted for the most important British innovation of the 21st century is recognition of the high calibre of research being undertaken at QUILL and throughout the University.  We would encourage people to take a moment to vote for our research as its application will eventually have a bearing on most of our lives.”

Other notable British innovations in the hunt for the prize are Quantum Dots, Graphene, Raspberry Pi and the discovery of the Higgs-Boson – you can vote for your favourite here.  Update Monday 25th March – Ionic Liquid Chemistry was voted the recent innovation that is most likely to shape the coming century.

Why not take a look at a collection of high quality research in this area from across RSC Journals – Increadible ionic liquids: an article collection.

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Top 10 most accessed articles in 2012

Do you want to know what your colleagues were reading during 2012? The following articles in Green Chemistry were the most accessed over the course of the year:

Multicomponent reactions in unconventional solvents: state of the art
Yanlong Gu
Green Chem., 2012,14, 2091-2128
DOI: 10.1039/C2GC35635J, Critical Review

Characterization and comparison of hydrophilic and hydrophobic room temperature ionic liquids incorporating the imidazolium cation
Jonathan G. Huddleston, Ann E. Visser, W. Matthew Reichert, Heather D. Willauer, Grant A. Broker and Robin D. Rogers
Green Chem., 2001,3, 156-164
DOI: 10.1039/B103275P, Paper

Catalytic conversion of biomass to biofuels
David Martin Alonso, Jesse Q. Bond and James A. Dumesic
Green Chem., 2010,12, 1493-1513
DOI: 10.1039/C004654J, Critical Review

Transition metal based catalysts in the aerobic oxidation of alcohols
Camilla Parmeggiani and Francesca Cardona
Green Chem., 2012,14, 547-564
DOI: 10.1039/C2GC16344F, Tutorial Review

Evolution of asymmetric organocatalysis: multi- and retrocatalysis
Raffael C. Wende and Peter R. Schreiner
Green Chem., 2012,14, 1821-1849
DOI: 10.1039/C2GC35160A, Critical Review

Green synthesis of metal nanoparticles using plants
Siavash Iravani
Green Chem., 2011,13, 2638-2650
DOI: 10.1039/C1GC15386B, Critical Review

Technology development for the production of biobased products from biorefinery carbohydrates—the US Department of Energy’s “Top 10” revisited
Joseph J. Bozell and Gene R. Petersen
Green Chem., 2010,12, 539-554
DOI: 10.1039/B922014C, Critical Review

Continuous flow reactors: a perspective
Charlotte Wiles and Paul Watts
Green Chem., 2012,14, 38-54
DOI: 10.1039/C1GC16022B, Tutorial Review

Catalytic conversion of biomass using solvents derived from lignin
Pooya Azadi, Ronald Carrasquillo-Flores, Yomaira J. Pagán-Torres, Elif I. Gürbüz, Ramin Farnood and James A. Dumesic
Green Chem., 2012,14, 1573-1576
DOI: 10.1039/C2GC35203F, Communication

5-Hydroxymethylfurfural (HMF) as a building block platform: Biological properties, synthesis and synthetic applications
Andreia A. Rosatella, Svilen P. Simeonov, Raquel F. M. Frade and Carlos A. M. Afonso
Green Chem., 2011,13, 754-793
DOI: 10.1039/C0GC00401D, Critical Review

Take a look at the articles and then post your thoughts and comments below.

Interested in submitting your own work to Green Chemistry? Submit online today, or email us with your suggestions.

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Green Chemistry issue 3 now online

The latest issue of Green Chemistry is now available to read online.

Green Chemistry, issue 3, 2013, front coverThe front cover of this issue highlights a Critical Review by Tom Welton and colleagues from Imperial College London (UK) and Umeå University (Sweden) on the deconstruction of lignocellulosic biomass with ionic liquids.  The review begins by providing background information on ionic liquids and lignocellulosic biomass before going on to explore the solubility of lignocellulosic biomass in ionic liquids.  The also describes the destruction effects brought about by the use of ionic liquids as a solvent, before finally looking at the practical considerations for design of ionic liquid based deconstruction processes.

Deconstruction of lignocellulosic biomass with ionic liquids, Agnieszka Brandt, John Gräsvik, Jason P. Hallett and Tom Welton, Green Chem., 2013, 15, 550-583

The inside front cover features work by Robert Brown and Kaige Wang from Iowa State University, USA, who report the catalytic pyrolysis of microalgae for production of valuable petrochemicals and ammonia.  This promising microalgae biorefinery pathway (both from an economical and environmental point-of-view) used the HZSM-5 catalyst for pyrolysis to convert whole microalgae into aromatic hydrocarbons.  The ammonia produced in the process can be recycled as a fertilizer for microalgae cultivation.

Catalytic pyrolysis of microalgae for production of aromatics and ammonia, Kaige Wang and Robert C. Brown, Green Chem., 2013, 15, 675-681

These articles are free to access for 6 weeks!

Keep up-to-date with the latest content in Green Chemistry by registering for our free table of contents alerts.

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Ohmic heating for efficient green synthesis

With environmental issues increasingly in the news, overcoming the challenges associated with greener chemistry has become a major focus of scientific research. To this aim, Portuguese scientists have developed a new ohmic-heating reactor for organic syntheses ‘on water,’  ie chemistry using an aqueous suspension of the reactants.

With ohmic heating the reaction medium itself serves as an electrical resistor, and is heated by passing electricity through it. Internal energy transformation occurs, from electrical to thermal energy, thanks to ion movement and friction within the reaction medium. Since the heating process depends on the resistivity of the medium, the exact conditions vary from reaction to reaction.

Lightning bolts hitting water, to illustrate ohmic heating

© Shutterstock

Read the full article in Chemistry World

Read the original journal article in Green Chemistry:
Ohmic heating as a new efficient process for organic synthesis in water
Joana Pinto, Vera L. M. Silva, Ana M. G. Silva, Artur M. S. Silva, José C. S. Costa, Luís M. N. B. F. Santos, Roger Enes, José A. S. Cavaleiro, António A. M. O. S. Vicente and José A. C. Teixeira
Green Chem., 2013, Advance Article
DOI: 10.1039/C3GC36881E
 

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