Current Organic Chemistry - Volume 11, Issue 6, 2007

In the paper the introduction pointing out the important role of viologens is followed by two chapters concerning rotaxanes with a thread incorporating viologens, and those with a ring built from viologens. In the next two chapters dendrimers containing viologens as a core and those with viologens localized in their apical positions are presented. The fifth chapter deals with cucurbiturils and calixarenes noncovalently b Read More

Antisense strategy represents a promising molecular tool for efficient and selective chemotherapeutic action. It belongs among oligonucleotide strategies that employ specific single-stranded sequences of deoxyribo- and ribonucleotides or their synthetic analogs to block or suppress expression of a pathogen in its early stage. This approach is also promising for studies of the biological function of the gene. However, t Read More

Analytical methods often benefit from progress in other fields of science. One of the best-illustrated and most spectacular examples is NMR technology and its numerous improvements that have resulted from new applications in biology and medicine. These techniques came under the term MRI during the mid 1970s, and then in vivo MRS since the early 1980s. Biomedical NMR of lipids is presently emerging as an excitin Read More

Its outstanding ability to generate singlet oxygen or reactive oxygen species upon irradiation with light makes hypericin one of the most powerful photosensitizers to be found in nature. The most important fields of application of hypericin seem presently to be its use as a photosensitizing anti-viral agent to destroy virus particles in blood preparations, to sensitize the destruction of superficial tumors, and its use as a diagnostic t Read More

Recently, the concept of fluorous bi-phasic catalysis (FBC) was introduced as an environmentally benign recyclable process. Numerous nine and long-enough (e.g. perfluorooctyl, C8F17) fluorous ponytails can be employed for fluorous phase immobilization of lanthanide catalysts and to catalyze the Diels-Alder and Friedel-Crafts reactions more efficiently. Meanwhile, Bis(perfluoroalkylsulfonyl)amides of lanthanum, ytterbi Read More