Current Organic Chemistry - Volume 15, Issue 19, 2011

While microwave dielectric heating had been widely exploited in several organic chemistry areas to accelerate and improve reactions yields, it has not been often applied to phosphorus chemistry since the beginning of the 21th century. Recently, there has been an important increase in the number of reported uses of microwave in several fields of phosphorus chemistry. This review focuses on a literature survey of the uses Read More

This review presents a recent progress in coordination and organometallic chemistry of metal complexes of chelating ligands with pyridine backbone, particularly bidentate [PN] and tridentate [PNP] aminophosphine ligands. The preparation of the ligands, their metal complexes, and the subsequent reactivity studies along with structural properties are discussed.

Approaches for the preparation of pyridazines and fused pyridazines are reviewed. Some corrections about errors in the old literature are given and discussed. The %yields of selected examples are optimized.

A new series of organocatalysts able to catalyse Diels-Alder cycloaddition reactions of α,β-unsaturated aldehydes was studied from both synthetic and theoretical perspectives. The importance of the imidazolidinone scaffold and the influence of the functional groups upon the formation of the reactive species was evaluated. Moreover taking into account that all these new organocatalysts gave the exo-cycloadducts as the majo Read More

The synthesis of galacturonate disaccharides has been performed from suitable protected monosaccharides. The use of orthogonal protecting groups allowed us to obtain both methyl galacturonates and galacturonic acid precursors as glycosylation donors or acceptors from a unique monosaccharide derivative. The protecting groups used allowed selective introduction of a fatty acid chain to the non-reducing end of a Read More

Novel Donor-π-Acceptor triphenylamine-based dyes were synthesized and characterized with regard to their photophysical and photoelectrochemical properties by introducing the ethynyl-2-thienyl moiety as spacer (YS-1). The modification of the donor triphenylamine, performed by intodroducing two p-methoxy groups gave the YS-2 dye. Experimental results showed that the UV-Vis absorption spectra c Read More

The synthesis and characterisation of new germylated fatty acid methyl esters and fatty alcohols as novel precursors for structured dendritic materials are described. Hydrogermylation of terminal and internal C=C double bonds by arylgermanes occurred under radical initiation using azo-bis-isobutyronitrile (AIBN) and peroxides. The reactivity depends essentially on the double bond position of the fatty derivatives (intern v Read More