Photo Group 2011
Since the first publications on the use of microwave irradiation in synthetic chemistry, it was clear that this methodology would have a marked influence in all areas of this discipline. Reduction of reaction times, improved yields, modifications of selectivities, increased product purities and simplification of work-up procedures were described and, in most cases, these conditions … Continue reading
An open call for a PhD position in the University of Turin (3 years grant) under the supervision of Prof. Giancarlo Cravotto will be soon available, candidates have to select one of the two following projects: 1) Innovative technologies for the recovery, adsorption or degradation of pharmaceuticals and other persistent organic pollutants from industrial or urban … Continue reading
Carbon nanotubes, both single-walled and multi-walled, have been functionalised with 1,3,5-triazines and p-tolyl chains by aryl radical addition under microwave irradiation and the derivatives have been fully characterised. Artificial receptors in catalytic processes could be designed through specific control of the interaction between functionalised carbon nanotubes and riboflavin.
A new series of bistriazine-based streptocyanines has been selectively prepared. 1D- and 2D-DNMR spectroscopy and computational calculations have shown the presence of a Cl … H bond. UV–vis and fluorescence spectroscopy show that streptocyanine-based bistriazines are violet-blue emitters and large Stokes shifts of more than 6000 cm−1 were observed. The title compounds showed interesting properties which … Continue reading
NMR analysis of mass-limited samples remains a major challenge, which has triggered the development of expensive superconducting ultra-high field magnets, as well as of more expensive and technologically demanding solutions as cryoprobes and hyperpolarization schemes. Mass-limited samples could also benefit from the use of miniaturized coils, since the amplitude of the NMR signal is optimal … Continue reading
A series of imine-derived triazines with Donor–Acceptor properties have been designed. They are excellent candidates for the interaction with graphene and the construction of optoelectronic devices, as blue Light Emitting-Diodes.
The stereoselective synthesis of 1,3-diaminotruxillic acid derivatives has been achieved in high yields and short reaction times. The procedure starts from simple 5(4H)- oxazolones and is based on an efficient combination of CH orthopalladation, [2+2]-photocycloaddition on continuous flow microreactors using visible light from LED sources, and hydrogenation to selectively afford the epsilon isomer.
A new green synthesis star-shaped 2,5-dimethoxyphenylamino-1,3,5-triazine derivatives using microwave irradiation in the absence of solvent, with properties as donor–acceptor (D–A) systems. is described.
Efficient blue emitters (with ΦF values up to 0.87) bistriazines have been synthesized using Green procedures under microwave irradiation.
The aim of this review is to discuss the most important metal-free derivatives bearing 1,2,4- triazole moieties. Applications in OLEDs, PHOLEDs, PLEDs, liquid crystals, optical waveguides, PEMFCs, organic photovoltaic cells and data storage devices.