Current Organic Chemistry - Volume 13, Issue 9, 2009

Palladacycles containing tridentate ligands have become a very promising family of complexes due to an excellent balance between stability and reactivity that enables them to catalyze a number of organic reactions. Moreover, special chemical properties of such interesting compounds have been considered as keys to determine the mechanisms of many palladium-catalyzed reactions. Although the most commonly employed Read More

A comprehensive review of the reports in the literature concerning conjugation of polyunsaturated acid and their esters (vegetable oils such as: linseed oil, sunflower oils, rape oil, soybean oil; linoleic acid, methyl linoleate etc.) catalyzed by supported transition metals and their complexes is presented. The following issues are analyzed: chemo-, regio-, and stereoselectivity of the double bond migration in polyenes, mechanis Read More

A broad range of fundamental free radical reactions, such as hydrogen and halogen atom transfer, radical deoxygenations, radical cyclization reactions, radical additions to C=C and C=N double bonds, in β-cyclodextrin based molecular reactors at room temperature are investigated. The reactions proceeded smoothly in moderate to excellent yield at ambient temperature.

Intramolecular haloetherification and transannular hydroxycyclization of alkenes is a synthetic methodology to obtain polycyclic ethers and amines in a regio- and stereoselective manner. The stereoelectronic effects controlling this selectivity are discussed. Also, the methodology based on [4+3]-cycloaddition followed by intramolecular haloetherification or transannular hydroxycyclization is described as a very useful tool to Read More

The main methods reported in literature to obtain stereoselective photochemical reaction is reviewed. The most important approached attempted to obtain stereoselective photochemical reaction are: 1.) the use of diastereoselective photochemical reactions, 2.) the use of molecules with prevented mobility (this approach can be obtained 1. introducing chiral auxiliary, 2. introducing chiral molecules in the reaction mixture Read More