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Deligeorgiev et al. Coloration Technology. 2010;126(2):55 -80. Styryl dyes – synthesis and applications during the last 15 years

Publications > Deligeorgiev et al

Styryl dyes – synthesis and applications during the last 15 years

Resumen

One of the most widely used and important groups of functional dyes are the styryl dyes and a review of this functional dye class has not been published for more than 15?years. In this review article, we describe the new trends in the synthesis of a range of novel intermediates and styryl dyes and include the most interesting examples of their high-tech applications. However, this review is not intended to be comprehensive because of the large number of styryl dye studies that have been carried out in this time. Styryl cyanine dyes are widely used in optical recording media in laser discs, as flexible dyes, laser dyes, as optical sensitisers and in various other fields, for example dye-sensitised solar cells and dyes with non-linear optical properties. Additionally, the most important applications for these dyes are in bio-labelling and in medicinal analysis.

Deligeorgiev et al. Mini-Reviews in Organic Chemistry. 2010;7(1):44 -53. Green chemistry in organic synthesis.

Publications > Deligeorgiev et al

Green chemistry in organic synthesis.

1. University of Sofia, Faculty of Chemistry, 1164 Sofia, Bulgaria.  2. University of Alcalá, Faculty of Pharmacy, 28871 Alcalá de Henares, Madrid, Spain.

Resumen

The development of the concepts for "Green Chemistry" and the main principles of this field are reviewed. Examples of the application of these principles in different areas of chemistry are included. The frequently used alternative solvents (green solvents - water, PEG, perfluorinated solvents, supercritical liquids) in preparative organic chemistry are described. The present and the future developments of green chemistry in education and organic chemical technology are considered. © 2010 Bentham Science Publishers Ltd.

Deligeorgiev et al. Journal. 2010;17(5):783 -788. Title

Publications > Deligeorgiev et al

No hay título

Resumen

A series of 2-alkylthio derivatives of hetaryl thiols were synthesized by selective S-alkylation with alkyl halides (bromides and iodides) with ultrasonic irradiation at room temperature. The reaction was found to be generally applicable to hetaryl thiol derivatives with different substituents in the aromatic nucleus and various alkyl halides. The reaction gives high to excellent yields of products with high purity.