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Pericyclic Reactions (pericyclic + reaction)
Selected AbstractsChemInform Abstract: Dissociative Cycloelimination, a New Selenium Based Pericyclic Reaction.CHEMINFORM, Issue 10 2002Lars Henriksen Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Enantioselective 6,,,Electrocyclizations: Pushing the Limits in Organocatalytic Pericyclic ReactionsCHEMCATCHEM, Issue 4 2010Catalysis sans frontières: Enantioselective catalysis has been achieved for 6,, electrocyclizations. Two recent reports have shown that this particular pericyclic reaction can be carried out in a catalytic and highly enantioselective way, provided that careful design of the structure of the substrate is made. Excellent results have been obtained under organocatalytic conditions, with catalysts operating by different mechanisms. [source] ChemInform Abstract: Sequencing Pericyclic Reactions: The Ester Dienolate [2,3]-Wittig/Oxy-Cope Rearrangement/Carbonyl Ene Reaction, a New Access to Substituted Carbocycles.CHEMINFORM, Issue 11 2002Martin Hiersemann Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Enantioselective 6,,,Electrocyclizations: Pushing the Limits in Organocatalytic Pericyclic ReactionsCHEMCATCHEM, Issue 4 2010Catalysis sans frontières: Enantioselective catalysis has been achieved for 6,, electrocyclizations. Two recent reports have shown that this particular pericyclic reaction can be carried out in a catalytic and highly enantioselective way, provided that careful design of the structure of the substrate is made. Excellent results have been obtained under organocatalytic conditions, with catalysts operating by different mechanisms. [source] Orthogonal Transformations on Solid Substrates: Efficient Avenues to Surface ModificationADVANCED MATERIALS, Issue 34 2009Leena Nebhani Abstract The performance of solid substrates is not only governed by their molecular constitution, but is also critically influenced by their surface constitution at the solid/gas or solid/liquid interface. In here, we critically review the use of orthogonal chemical transformations (so-called click chemistry) to achieve efficient surface modifications of materials ranging from gold and silica nanoparticles, polymeric films, and microspheres to fullerenes as well as carbon nanotubes. In addition, the functionalization of surfaces via click chemistry with biomolecules is explored. Although a large host of reactions fulfilling the click -criteria exist, pericyclic reactions are most frequently employed for efficient surface modifications. The advent of the click chemistry concept has led,as evident from the current literature,to a paradigm shift in current approaches for materials modification: Away from unspecific and nonselective reactions to highly specific true surface engineering. [source] | ||||||||||