Archive for January, 2011

Top ten most accessed articles in December

This month sees the following articles in Green Chemistry that are in the top ten most accessed:-

Glycerol dehydration to acrolein in the context of new uses of glycerol¬
Benjamin Katryniok, S√©bastien Paul, Virginie Belli√®re-Baca, Patrick Rey and Franck Dumeignil¬
Green Chem., 2010,¬†12, 2079-2098, DOI: 10.1039/C0GC00307G, Critical Review¬

Synthesis of sugar alcohols by hydrolytic hydrogenation of cellulose over supported metal catalysts¬
Hirokazu Kobayashi, Yukiko Ito, Tasuku Komanoya, Yuto Hosaka, Paresh L. Dhepe, Koji Kasai, Kenji Hara and Atsushi Fukuoka¬
Green Chem., 2011, Advance Article, DOI: 10.1039/C0GC00666A, Paper¬

Synergy of boric acid and added salts in the catalytic dehydration of hexoses to 5-hydroxymethylfurfural in water¬
Thomas S. Hansen, Jerrik Mielby and Anders Riisager¬
Green Chem., 2011,¬†13, 109-114, DOI: 10.1039/C0GC00355G, Paper¬

Synthesis of thermoplastic starch mixed esters catalyzed by the in situ generation of imidazolium salts¬
Andr√© Lehmann, Bert Volkert, Mehdi Hassan-Nejad, Tonino Greco and Hans-Peter Fink¬
Green Chem., 2010,¬†12, 2164-2171, DOI: 10.1039/C0GC00366B, Paper¬

√ü-cyclodextrin catalysed synthesis of tryptanthrin in water¬
Atul Kumar, Vishwa Deepak Tripathi and Promod Kumar¬
Green Chem., 2011,¬†13, 51-54, DOI: 10.1039/C0GC00523A, Communication¬

Eco-friendly liquid chromatographic separations based on the use of cyclodextrins as mobile phase additives¬
V√≠ctor Gonz√°lez-Ruiz, Andr√©s G. Le√≥n, Ana I. Olives, M. Antonia Mart√≠n and J. Carlos Men√©ndez¬
Green Chem., 2011,¬†13, 115-126, DOI: 10.1039/C0GC00456A, Paper¬

An efficient copper-catalysed aerobic oxybromination of arenes in water¬
Jian Wang, Wei Wang and Jing-Hua Li¬
Green Chem., 2010,¬†12, 2124-2126, DOI: 10.1039/C0GC00328J, Communication¬

Waste materials ‚Äď catalytic opportunities: an overview of the application of large scale waste materials as resources for catalytic applications
M. Balakrishnan, V. S. Batra, J. S. J. Hargreaves and I. D. Pulford¬
Green Chem., 2011,¬†13, 16-24, DOI: 10.1039/C0GC00685H, Tutorial Review¬

A green protocol for palladium-catalysed Suzuki-Miyaura cross-coupling¬
Alexander N. Marziale, Dominik Jantke, Stefan H. Faul, Thomas Reiner, Eberhardt Herdtweck and J√∂rg Eppinger¬
Green Chem., 2011,¬†13, 169-177, DOI: 10.1039/C0GC00522C, Paper¬

Selective hydrogenolysis of biomass-derived xylitol to ethylene glycol and propylene glycol on supported Ru catalysts¬
Jiying Sun and Haichao Liu¬
Green Chem., 2011,¬†13, 135-142, DOI: 10.1039/C0GC00571A, Paper¬

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to Green Chemistry? Then why not submit to us today or alternatively email us your suggestions.

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A reversible CO2 carrier for the carboxylation of ketones at room temperature

Beckman and Munshi reports a reversible CO2 carrier (RCC) for the carboxylation of ketone to ő≤-ketoester under ambient CO2 pressure and temperature.

RCC has been synthesized by immobilizing 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) on methylhydrosiloxane support and reacting with CO2 with 100% degree of functionalisation. RCC is found to be recyclable and shows retention of activity in 5 recycles. CO2 absorption under ambient temperature and desorption at 120 ¬įC renders the material suitable for carrying out carboxylation reactions at 25 ¬įC with excellent yields. The yield of the reaction can reach up to 100% with TON 200 in 4 h. The extent of the reaction primarily depends upon enol content of the substrate. ő≤-Ketoacid produced during the reaction can be isolated and converted to its corresponding methyl ester derivative by reacting with methyl iodide.

Access this article for free by clicking on the link below: 

Ambient carboxylation on a supported reversible CO2 carrier: ketone to ő≤-keto ester, Eric J. Beckman and Pradip Munshi, Green Chem., 2011, DOI: 10.1039/C0GC00704H, Advanced Article, Paper

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Top ten most accessed articles in November

This month sees the following articles in Green Chemistry that are in the top ten most accessed:-

Vegetable oil-based polymeric materials: synthesis, properties, and applications¬
Ying Xia and Richard C. Larock¬
Green Chem., 2010,¬†12, 1893-1909, DOI: 10.1039/C0GC00264J, Critical Review¬

Production of jet and diesel fuel range alkanes from waste hemicellulose-derived aqueous solutions¬
Rong Xing, Ayyagari V. Subrahmanyam, Hakan Olcay, Wei Qi, G. Peter van Walsum, Hemant Pendse and George W. Huber¬
Green Chem., 2010,¬†12, 1933-1946, DOI: 10.1039/C0GC00263A, 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¬

A solid-acid-based process for the conversion of hemicellulose¬
Paresh Laxmikant Dhepe and Ramakanta Sahu¬
Green Chem., 2010,¬†12, 2153-2156, DOI: 10.1039/C004128A, Communication¬

Fe3O4 nanoparticles: a robust and magnetically recoverable catalyst for three-component coupling of aldehyde, alkyne and amine¬
Tieqiang Zeng, Wen-Wen Chen, Ciprian M. Cirtiu, Audrey Moores, Gonghua Song and Chao-Jun Li¬
Green Chem., 2010,¬†12, 570-573, DOI: 10.1039/B920000B, Communication¬

Glycerol dehydration to acrolein in the context of new uses of glycerol¬
Benjamin Katryniok, S√©bastien Paul, Virginie Belli√®re-Baca, Patrick Rey and Franck Dumeignil¬
Green Chem., 2010,¬†12, 2079-2098, DOI: 10.1039/C0GC00307G, Critical Review¬

A silica gel supported dual acidic ionic liquid: an efficient and recyclable heterogeneous catalyst for the one-pot synthesis of amidoalkyl naphthols¬
Qiang Zhang, Jun Luo and Yunyang Wei¬
Green Chem., 2010,¬†12, 2246-2254, DOI: 10.1039/C0GC00472C, Paper¬

Microwave-assisted solvent- and ligand-free copper-catalysed cross-coupling between halopyridines and nitrogen nucleophiles¬
Zhen-Jiang Liu, Jean-Pierre Vors, Ernst R. F. Gesing and Carsten Bolm¬
Green Chem., 2011,¬†13, 42-45, DOI: 10.1039/C0GC00296H, Communication¬

Efficient copper-catalyzed N-arylations of nitrogen-containing heterocycles and aliphatic amines in water¬
Xufeng Li, Daoshan Yang, Yuyang Jiang and Hua Fu¬
Green Chem., 2010,¬†12, 1097-1105, DOI: 10.1039/C002172E, Paper¬

Highly efficient catalyst for the decarbonylation of lactic acid to acetaldehyde¬
Benjamin Katryniok, S√©bastien Paul and Franck Dumeignil¬
Green Chem., 2010,¬†12, 1910-1913, DOI: 10.1039/C0GC00203H, Communication¬

Why not take a look at the articles today and blog your thoughts and comments below.

Fancy submitting an article to Green Chemistry? Then why not submit to us today or alternatively email us your suggestions.
  

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Is cellulose dissolution process with ionic liquids really environmentally friendly?

Righi and co-workers here present the life cycle assessment (LCA)¬†of cellulose dissolution with ionic liquids 1-butyl-3-methylimidazolium chloride (Bmim Cl). The authors compared the ‚Äúgreenness‚ÄĚ of the process with the well established environmental friendly N-methyl-morpholine-N-oxide (NMMO)/H2O process. Results from the LCA suggest that both processes are comparable.

Specifically, the process with Bmim Cl generates a higher environmental load on abiotic resource depletion, emissions of volatile organic compounds and ecotoxicity than the NMMO/H2O process. Conversely it has some environmental advantages with regards to human toxicity. In both cellulose dissolution processes, the major contributions to the environmental impacts come from precursor syntheses.

Read more about this article here:

Comparative cradle-to-gate life cycle assessments of cellulose dissolution with 1-butyl-3-methylimidazolium chloride and N-methyl-morpholine-N-oxide

Serena Righi, Andrea Morfino, Paola Galletti, Chiara Samorì, Alessandro Tugnoli and Carlo Stramigioli
Green Chem., 2011, DOI: 10.1039/C0GC00647E, Paper

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New Associate Editor for Green Chemistry

Professor Chao-Jun Li

We are delighted to announce that Professor Chao-Jun Li (McGill University, Canada) is the new Associate Editor for Green Chemistry.

His main area of research¬†is innovative and fundamentally new organic reactions that will defy conventional reactivities and possess high “atom-efficiency”.

Professor Li will handle manuscripts from the Americas and Canada and his editorial office is now open for submissions. We welcome Professor Li to this new role.

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