Archive for February, 2013

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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HOT articles of the week

Read some of the latest ‘HOT’ research to be published in Green Chemistry!  These articles are all free to access until the 11th March 2013:

Resolving the dilemma of gaining conductivity but losing environmental friendliness in producing polystyrene/graphene composites via optimizing the matrix-filler structure, Gucheng Long, Changyu Tang, Ka-wai Wong, Changzhen Man, Meikun Fan, Woon-ming Lau, Tao Xu and Bin Wang, Green Chem., 2013, DOI: 10.1039/C3GC37042A

Graphical Abstract for C3GC37042A


Application of a recyclable fluorous oxime in the convenient synthesis of 3-amino-1,2-benzisoxazoles and 4-amino-1H-2,3-benzoxazines, Wei Jie Ang, Chi-Yuan Chu, Tzyy-Chao Chou, Lee-Chiang Lo and Yulin Lam, Green Chem., 2013, DOI: 10.1039/C3GC36966H

Graphical abstract of C3GC36966H


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, DOI: 10.1039/C3GC36844K

Graphical abstract for C3GC36844K


One-step acrylation of soybean oil (SO) for the preparation of SO-based macromonomers, Pei Zhang and Jinwen Zhang, Green Chem., 2013, DOI: 10.1039/C3GC36961G

Graphical abstract for C3GC36961G

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

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