Hot articles in ‘green’ organic synthesis

Read about our latest hot articles in green organic synthesis…

Martin Kluge and colleagues from the International Graduate School of Zittau and Lausitz University of Applied Sciences, Germany, report the stereoselective benzylic hydroxylation of alkybenzenes and epoxidation of styrene derivatives catalysed by the peroxygenase from the fungus Agrocybe aegerita.  This method avoids the use of transition metal catalysts and harsh reactions conditions present in other methods.  By using fed-batch devices and varying feeding strategies for the substrates, the Kluge and co-workers developed a suitable approach to optimize peroxygenase catalysis.

Antonio Braga and colleagues from the Federal University of Santa Catarina and the Federal University of Santa Maria, Brazil, report the synthesis of selenol esters from diorganyl diselenides and acyl cholrides under solvent-free conditions and microwave irradiation.  They describe an efficient, fast and eco-friendly method for the synthesis of selenol esters, which provided good to excellent yields of the products after just two minutes of microwave irradiation. 

Read these articles for free until 11th February 2012!

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Green Chemistry Issue 1, 2012 now online!

Issue 1 2012 of Green Chemistry is now online!

The front cover of the issue highlights work by Graham Hutchings and colleagues from Cardiff University, UK, who prepared several Au-Pd exchanged supported Cs-heteropolyacid catalysts and applied them to the direct synthesis of hydrogen peroxide from H2 and O2 in water under ambient conditions

The inside front cover features work by George Huber and co-workers from the University of Massachusetts-Amherst, USA and Southeast University, China, who report the catalytic fast pyrolysis of wood and alcohol mistures in a fluidized bed reactor.  By looking at the various reaction parameters, the authors demonstrate that catalytic fast pyrolysis can selectively produce a mixture of compounds and that the overall yield is a function of the hydrigen to carbon effective ratio. 

All articles in this issue are free to access.

Don’t forget to keep up-to-date with our latest hot articles and reviews!

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Perspective: How do the fine chemical, pharmaceutical, and related industries approach green chemistry and sustainability?

In this Perspective article, William Watson, Scientific Update LLP, UK, looks at the approach of companies within the chemical, pharmaceutical and related industries to green chemistry and sustainability, and examines how much variation exists from company to company.

The study approached several companies from across the sector and included 11 ‘big pharma’ companies, 6 ‘other pharma’ companies and 4 non-phrama companies who agreed to take part in the survey.  The survey itself looked at green chemistry and sustainability policies and policy implementation, process metrics, green chemistry and technologies and how the application of the green chemistry principles changes throughout the various stages of development.

The study highlights that the overall picture across the sector is very varied, with a few companies clearly leading the field and some slower to introduce or highlight green issues than others.  However, all companies try to use green solvents where possible and avoid using solvents like dichloromethane.

This article is now free to access until the 3rd February 2012!  Click the link below to find out more…

How do the fine chemical, pharmaceutical, and related industries approach green chemistry and sustainability?, William J. W. Watson, Green Chem., 2012, DOI: 10.1039/C1GC15904F

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2nd Manufacturing Using Sustainable Chemistry meeting – York Science Park

The Green Chemistry Centre in conjunction with the CIA (Chemical Industries Association) is organising the 2nd MUSC (Manufacturing Using Sustainable Chemistry) event, which will take place on Thursday 16th February 2012 at the Innovation Centre, York Science Park.

The event will be centred around Microwave-enhanced chemistry and the alternative uses of microwave heating. It will coincide with the opening of the Biorenewables Development Centre (BDC) on the York Science Park. The biorefinery R&D facility will be unique to the UK and will showcase state-of-the-art microwave-biomass processors and other clean chemical and white biotechnology with open-access to academic and industrial collaborators. The programme for the day will consist of presentations, poster sessions and a tour of the BDC. Speakers will include Mike Lancaster of the CIA, Dr Adrian Higson of the NNFCC and Dr Marilena Radoiu of Sairem.

 Please see this web link to the flyer and registration form: http://www.musc-network.co.uk/flyer%20and%20form.pdf

You may also be interested in Starbons® Day at the Green Chemistry Centre on the 16th July 2012 – please see the flyer for further details: http://www.greenchemistrynetwork.org/pdf/starbons_day_flyer.pdf

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Challenges in Organic Chemistry and Chemical Biology (ISACS7)

We are delighted to announce that registration is now open for Challenges in Organic Chemistry and Chemical Biology (ISACS7) which is being held on 12 – 15 June 2012 at the University of Edinburgh, UK. Register now to guarantee your place for this major conference whilst benefiting from the fantastic early bird savings currently available.

The oral abstract submission deadline is fast approaching so make sure you submit your abstract by 27 January 2012 to present your work alongside Nobel Prize Winners Ei-ichi Negishi and Akira Suzuki.

For further details on this significant event, please visit the dedicated webpage.

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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:-

Recent advances in ionic liquid catalysis
Qinghua Zhang, Shiguo Zhang and Youquan Deng
Green Chem., 2011, Advance Article, DOI: 10.1039/C1GC15334J

Continuous flow reactors: a perspective
Qinghua Zhang, Shiguo Zhang and Youquan Deng
Green Chem., 2011, 13, 2619-2637, DOI: 10.1039/C1GC15334J

Industrial biotechnology – the future of green chemistry?
Stefanie Wenda, Sabine Illner, Annett Mell and Udo Kragl
Green Chem., 2011, 13, 3007-3047, DOI: 10.1039/C1GC15579B

l-Proline catalysed multicomponent synthesis of 3-amino alkylated indoles via a Mannich-type reaction under solvent-free conditions
Atul Kumar, Maneesh Kumar Gupta and Mukesh Kumar
Green Chem., 2012, Advance Article, DOI: 10.1039/C1GC16297G

Environmentally benign synthesis of heterocyclic compounds by combined microwave-assisted heterogeneous catalytic approaches?
Arif Daştan, Aditya Kulkarni and Béla Török
Green Chem., 2012, Advance Article, DOI: 10.1039/C1GC15837F

A critical review on recent methods used for economically viable and eco-friendly development of microalgae as a potential feedstock for synthesis of biodiesel
Yogesh C. Sharma, Bhaskar Singh and John Korstad
Green Chem., 2011, 13, 2993-3006, DOI: 10.1039/C1GC15535K

Synthesis and properties of trialkyl(2,3-dihydroxypropyl)phosphonium salts, a new class of hydrophilic and hydrophobic glyceryl-functionalized ILs
Fabio Bellina, Cinzia Chiappe and Marco Lessi
Green Chem., 2012, Advance Article, DOI: 10.1039/C1GC16035D

A magnetic nanoparticle supported dual acidic ionic liquid: a ‘quasi-homogeneous’ catalyst for the one-pot synthesis of benzoxanthenes
Qiang Zhang, Hong Su, Jun Luo and Yunyang Wei
Green Chem., 2012, Advance Article, DOI: 10.1039/C1GC16031A

Aqueous and biphasic nitrile hydration catalyzed by a recyclable Ru(ii) complex under atmospheric conditions
Wei-Chih Lee and Brian J. Frost
Green Chem., 2012, Advance Article, DOI: 10.1039/C1GC15950J

Syntheses of cyclic carbonates with amidinium halide catalysts in reusable, reversible, room-temperature ionic liquids or acetonitrile
Tao Yu and Richard G. Weiss
Green Chem., 2012, Advance Article, DOI: 10.1039/C1GC16027C

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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Top cited Green Chemistry articles from 2011

As we near the end of 2011, here are some of the top cited Green Chemistry articles published this year.  These articles are all free to access until the 27th January 2012!

Converting carbohydrates to bulk chemicals and fine chemicals over heterogeneous catalysts, Maria J. Climent, Avelino Corma and Sara Iborra, Green Chem., 2011, 13, 520-540

Enzyme-mediated oxidations for the chemist, Frank Hollmann, Isabel W. C. E. Arends, Katja Buehler, Anett Schallmey and Bruno Bühler, Green Chem., 2011, 13, 226-265

Searching for green solvents, Philip G. Jessop, Green Chem., 2011, 13, 1391-1398

A critical assessment of the greenness and energy efficiency of microwave-assisted organic synthesis, Jonathan D. Moseley and C. Oliver Kappe, Green Chem., 2011, 13, 794-806

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

Glycerol eutectics as sustainable solvent systems, Andrew P. Abbott, Robert C. Harris, Karl S. Ryder, Carmine D’Agostino, Lynn F. Gladden and Mick D. Mantle, Green Chem., 2011, 13, 82-90

Use of carbon dioxide in chemical syntheses via a lactone intermediate, A. Behr and G. Henze, Green Chem., 2011, 13, 25-39

Greener solvents for ruthenium and palladium-catalysed aromatic C–H bond functionalisation, Cedric Fischmeister and Henri Doucet, Green Chem., 2011, 13, 741-753

The irruption of polymers from renewable resources on the scene of macromolecular science and technology, Alessandro Gandini, Green Chem., 2011, 13, 1061-1083

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, 13, 326-333

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Critical review: The photoreaction of TiO2 and Au/TiO2 single crystal and powder surfaces with organic adsorbates. Emphasis on hydrogen production from renewables

In this critical review, Karen Connelly and Hicham Idriss from the University of Aberdeen, UK and SABIC T&I, Saudi Aradia, review the fundamental aspects behind the reactivity of TiO2 surfaces. 

The authors look at both rutile-TiO2and a gold/TiO2system and the various factors that affect their reactivity, before studying the photoreaction of ethanol in more detail.  Here, they show that the gold/TiO2system shows about two orders of magnitude high activity that rutile-TiO2and discuss the mechanisms of hydrogen production.  However, the authors highlight that further work is still needed in this field as only one third of the hydrogen is extracted from the ethanol.  They highlight that the challenge will be in designing photocatalysts for hydrogen production that are capable of breaking carbon-carbon bonds under ambient conditions.

This article is free to access until the 11th January 2012!  Click the link below to read more…

The photoreaction of TiO2and Au/TiO2single crystal and powder surfaces with organic adsorbates. Emphasis on hydrogen production from renewables, Karen A. Connelly and Hicham Idriss, Green Chem., 2012, DOI: 10.1039/C1GC15992E

You may also be interested in this article, also free until the 11th January 2012:

Sustainable hydrogen production by the application of ambient temperature photocatalysis, Michael Bowker, Green Chem., 2011, 13, 2235-2246

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A quantitative comparison between conventional and bio-derived solvents from citrus waste in esterification and amidation kinetic studies

(R)-(+)-Limonene and its close derivative p-cymene has been shown to be viable yet sustainable alternative solvents for amidation and esterification reactions. 

James Clark and colleagues from the University of York, UK report the use of bio-derived solvents from citrus waste and their application in some organic reactions.  Approximately 15 million tons of citrus waste is generated annually, but it is usually disposed of or incorporated into animal feed.  However, this waste material provides excellent opportunities to obtain useful and/or valuable chemicals.  Here, limonene obtained directly from citrus wastes, and p-cymene which can be synthesised easily from waste biomass, have been shown to be viable alternatives to conventional solvents in esterification and amidation reactions. 

This article is free to access until the 16th January 2012!  Click the link below to find out more…

A quantitative comparison between conventional and bio-derived solvents from citrus waste in esterification and amidation kinetic studies, James H. Clark, Duncan J. Macquarrie and James Sherwood, Green Chem., 2012, DOI: 10.1039/C1GC16299C

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Green Chemistry issue 12 now online

Green Chemistry issue 12 is now online! 

The front cover of this issue features work by Sibudjing Kawi and W. Thitsartarn from the National University of Singapore.  They report a stable and active CaO-CeO2 catalyst, prepared by simple gel formation viaa co-precipitation method, which was applied to the transesterification of oil to biodiesel.  The catalyst could be reused up to 18 times without significant loss of activity and showed only low amounts of leaching.  Find out more by reading the full article ‘An active and stable CaO–CeO2catalyst for transesterification of oil to biodiesel.’

The inside front cover highlights work from Jérôme Husson and co-workers from the Université de Franche-Comté.  They report a new synthesis route to 4,4′,4′′-tricarboxy-2,2′:6′,2′′-terpyridine, a ligand that is a component of the “Black-dye” sensitizer for dye-sensitized solar cells.  The route developed by Husson has a lower ecological impact with respect to atom economy, yield, solvent and chemicals used and wastes generated, compared to the previously reported method.  Find out more by reading the full article ‘A more efficient synthesis of 4,4′,4′′-tricarboxy-2,2′:6′,2′′-terpyridine.’

These articles are free to access until 16th January 2012!

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