Current Organic Chemistry - Volume 14, Issue 3, 2010

This review deals with recent advances in ligand design for the intermolecular asymmetric Mizoroki-Heck reaction. Since the seminal report by Hayashi and co-workers in 1991 on the intermolecular asymmetric Mizoroki-Heck reaction, research on new and improved catalytic systems has become a field of growing interest. Over the last decade, efforts have been made to develop stable and easily synthesised ligands that i Read More

This review gives an overview of our recent developments in the chemistry of 1,3- and 1,2-butadiene derivatives, with a special attention to their use in palladium catalyzed reactions. The reactions of α,β-unsaturated and propargylic acetals with various lithium and mixed lithium-potassium Schlosser reagents will be firstly reviewed. These processes have afforded (E)-1-alkoxy-1,3-dienes, and (E)-1,3-enynes, 1,3-diynes or alle Read More

Organic functionalization of the semiconductor (100) surfaces of C, Si and Ge using traditional organic reactions has been attracting tremendous interest in the past decade, which has developed as a very hot and interesting topic at the border between material science and synthetic organic chemistry. In this review, we will give a brief summary of our recent research work in this regard. It is well demonstrated that, due to th Read More

In this study, the title compound, N,N'-bis[(2,4-dimethoxyphenyl)methylidene]butane-1,4-diamine (L), was prepared and characterized by analytical and spectroscopic methods. The analytical data of the Schiff base ligand (L) confirms the proposed structure. The conductance value indicates that the ligand is non-electrolyte. The electrochemical properties of the ligand (L) are dependent on irreversible and quasi-reversible redox w Read More

This review focuses on a literature survey of the hydroarylation of alkynes via aryl C-H bond cleavage to prepare aryl-alkenes in the past thirty years. These efficient methods catalyzed by various metal complexes or protic acids are discussed respectively. Several reaction paths involved in these hydroarylations of alkynes are emphasized, which are aryl C-H activation by transition metals, formation of metal vinylidenes and Read More

Chitosan is a natural polymer composed of randomly distributed β-(1-4)-linked D-glucosamine (deacetylated unit) and Nacetyl- D-glucosamine (acetylated unit). It has been described as a non-toxic, biodegradable and biocompatible polymer with very interesting biological properties, such as permeation-enhancing and mucoadhesive properties, anticoagulant and antimicrobial activity and so on. Chitosan has been used in sev Read More