Current Organic Chemistry - Volume 19, Issue 7, 2015

The 1,2,4-triazole system has shown excellent electron-transport and hole-blocking properties owing to its highly electron-deficient nature. Accordingly, a large number of 1,2,4-triazole derivatives have been described as having a wide variety of uses in materials science. Triazoles are widely used in transition-metal complexes or metal-organic frameworks (MOFs), but metal-free 1,2,4-triazole derivatives have also exhib Read More

Traditional Friedel-Crafts acylation reactions of aromatics suffer from low regio-selectivity towards para- or more linear isomers and usually require stoichiometric quantities of Lewis acids, which are hydrolysed to produce toxic waste during aqueous work-up. Zeolites can catalyse and enhance the selectivity in Friedel-Crafts acylation reactions of simple aromatics and heterocycles. For example, high regioselectivity was achieved Read More

Porphyrins are important macrocyclic compounds that exist in nature, particularly in their metallated forms. Their unique properties have led the chemical community, since the earliest studies, to embrace the challenge of synthesizing porphyrins. In the quest to produce and manipulate the periphery of these macrocyclic systems for more useful and versatile applications, various strategies have been implemented. Among t Read More

The photoluminescent (PL) properties of composites based on single-walled carbon nanotubes (SWNTs) and poly(2,2´-bithiophene-co-pyrene) (PBTh-Py), prepared by in situ chemical polymerization of the two monomers in the presence of carbon nanotubes, are reported. We demonstrate that the functionalization of SWNTs with PBTh-Py copolymer is revealed through a gradual quenching process of PL with the increase of Read More