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Friday 4 July 2014

Organic chemistry: smelly and difficult?


Organic chemistry can appear unattractive to some students at first glance. The terminology it uses can make some see it as a difficult section of chemistry to understand. Fears of the subject area can then be compounded by the complexity of some organic compounds, the requirement to visualise them in 3D and a perceived need to rote learn lots of information. But there are many ways to help students see organic chemistry in all its glory.http://www.rsc.org/eic/2014/07/organic-chemistry-teaching-learning

Student difficulties

Would your students be able to spot the chiral carbon atom? © Image courtesy of David Everett
Carbon-based materials are all around us and the diversity of these makes the study of carbon compounds both interesting and confusing. The very word organic has several meanings which may be more familiar to students, referring to the way some food products are produced or to living materials. The terminology we use can be a barrier to learning as students struggle with a whole new ‘language’ of specific terms which, designed to systematise nomenclature, can muddy the waters as we introduce new names for familiar materials. Ethanoic acid for acetic acid and poly(ethene) for polythene, for example. ‘Old’ names persist in industry and in some areas of higher education simply because they are familiar and short and yet the dictates of examinations mean we have to help students to grapple with this whole new language.
http://www.rsc.org/eic/2014/07/organic-chemistry-teaching-learning

Thursday 3 July 2014

Selective fluorination of alkyl C–H bonds via photocatalysis

Graphical abstract: Selective fluorination of alkyl C–H bonds via photocatalysis

We report the generation of cationic N-radicals from Selectfluor® via energy transfer with anthraquinone as a photocatalyst for the fluorination of unactivated C–H bonds.

http://pubs.rsc.org/en/Content/ArticleLanding/2014/CC/C4CC01848F?utm_medium=email&utm_campaign=pub-CC-vol-50-issue-60&utm_source=toc-alert#!divAbstract


Selective fluorination of alkyl C–H bonds via photocatalysis

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*Corresponding authors
aSchool of Physical & Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
E-mail: choonhong@ntu.edu.sg
bDepartment of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
Chem. Commun., 2014,50, 8211-8214

DOI: 10.1039/C4CC01848F

Friday 27 June 2014

Solution to Pollution By Microalgae?



 thumbnail image: Solution to Pollution By Microalgae?

Solution to Pollution By Microalgae?

Carbon dioxide concentration and light intensity influence the potential of microalgae to remove CO2 from the atmosphere
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Radical Anions for the Electron-Poor



 thumbnail image: Radical Anions for the Electron-Poor

Radical Anions for the Electron-Poor

Anion radical coupling yields vertically fused polycyclic aromatic heterocycles
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 http://www.chemistryviews.org/details/ezine/6287491/Radical_Anions_for_the_Electron-Poor.html

Hydrophobic Catalysts



 thumbnail image: Hydrophobic Catalysts

Hydrophobic Catalysts

Introducing a hydrophobic shell enhanced the catalytic activity of core-shell catalysts in one-pot oxidation reactions
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 http://www.chemistryviews.org/details/ezine/6274191/Hydrophobic_Catalysts.html

B38 Cage: An All-Boron Fullerene Predicted



 thumbnail image: B<sub>38</sub> Cage: An All-Boron Fullerene Predicted

 

B38 Cage: An All-Boron Fullerene Predicted

Ab initio calculations predict a stable fullerene-like B38 cage cluster
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 http://www.chemistryviews.org/details/news/6295351/B38_Cage_An_All-Boron_Fullerene_Predicted.html

Friday 20 June 2014

Recycling CO2 Under Iridium Catalysis



Recycling CO2 Under Iridium Catalysis







Enantioselective transformation of allyl carbonates into branched allyl carbamates by using amines and recycling CO2 under Ir catalysis
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http://www.chemistryviews.org/details/ezine/6282241/Recycling_CO2_Under_Iridium_Catalysis.html