Mini-Reviews in Organic Chemistry - Volume 10, Issue 3, 2013

In this review, we classified discussion about recent advances in asymmetric organocatalytic Michael reactions carried out under various aqueous media. Many organocatalysts were discussed based on their chemical structures and properties. The role of water and proposed mechanisms were summarized.

Coordination compounds based on bis-quinolizidine derivatives as ligands are described from the viewpoint of their spectroscopic and structural properties. The metal ligand ability of C2 substituted sparteines and bis-quinolizidine Noxides is discussed in order to establish how far the presence of a substituent at α position to the nitrogen atom, involved in the formation of metal complexes or N-oxide function, influences the cour Read More

Ag(I) complexes formed by polydentate phenolic derivatives of thioglycolic and thiopropionic acids with Ag(I) ions could be a promising field of search for potential chemotherapeutic agents. Convenient synthetic methods to prepare these ligands have been developed on the basis of addition reactions occurring between S-nucleophiles and obenzoquinones. The results are presented of physicochemical investigation of Read More

Hepatitis B is a serious liver infectious disease, which remains a major public health problem worldwide. Though some effective treatments have been taken clinically, the therapeutic effects are moderate and suffer from the significant side effects and inevitable drug resistance. Therefore, the safer and more effective anti-HBV drugs are urgently required. Many natural products are well documented as their novel structures an Read More

Since the discovery of the aggregation-induced emission (AIE) phenomenon of siloles in 2001, extensive research has been devoted to the synthesis of AIE-active group 14 metalloles and their applications. A large number of new systems have been designed, synthesized, and studied. It has been determined that the restriction of intramolecular rotation is the main cause for AIE, and the effect that the nature of the substi Read More

There has been an increasing interest in discovering and developing small molecules that are of pharmaceutical importance. Heterocyclic compounds are known to be the most versatile class of these types of molecules, either prepared synthetically or occurring in nature. However, in some cases, it has been reported that the activity is enhanced to a larger extent when these heterocycles are repeated in the molecule Read More

Different cross-coupling reactions for the formation of biologically important motifs and intermediates in organic synthesis using various suitable copper catalysts are reviewed. These include C-C, C-N, C-O, C-S heteroatom bond forming, cyclization and other miscellaneous reactions catalyzed by elemental copper, copper salts, CuI, Cu (OTf)2, CuBr, Cu2O etc. The use of copper reagents instead of palladium catalysts and ligand Read More

5,8-Dihydroxy-[1,4]-naphthoquinone (DHNQ) is one of the key chromophores found in aged cellulosics. Cellulose aging and yellowing as well as bleaching of cellulosic materials are key processes in the pulp and paper industries and have considerable economic importance: the knowledge of the general reactivity and chemistry of this compound is thus helpful for a better understanding of these phenomena and the related te Read More

2,5-Dihydroxy-[1,4]-benzoquinone is one of the three key chromophores found in aged cellulosics. Knowledge of the general reactivity and chemistry of this compound is helpful for a better understanding of cellulose aging and yellowing as well as bleaching of cellulosic materials - processes which also have considerable economic importance. This paper reviews the reactions reported for 2,5-dihydroxy-[1,4]-benzoq Read More