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Crown Ethers and Phase Transfer Catalysis in Polymer Science

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概要 Phase transfer catalysis or interfacial catalysis is a syn thetic technique involving transport of an organic or inorganic salt from a solid or aqueous phase into an organic liquid where reaction with... an organic-soluble substrate takes place. Over the past 15 years there has been an enormous amount of effort invested in the development of this technique in organic synthe sis. Several books and numerous review articles have appeared summarizing applications in which low molecular weight catalysts are employed. These generally include either crown ethers or onium salts of various kinds. While the term phase transfer catalysis is relatively new, the concept of using a phasetrans fer agent (PTA) is much older~ Both Schnell and Morgan employed such catalysts in synthesis of polymeric species in the early 1950's. Present developments are really extensions of these early applications. It has only been within the last several years that the use of phase transfer processes have been employed in polymer synthesis and modification. Similarly, the use of polymer-bound phase transfer agents is also a recent development. These and related areas have nonetheless enjoyed explosive growth as mea sured by the number of publications and the variety of applica tions which have appeared. Several reviews dealing with these l 6 polymer-related investigations have been published.続きを見る
目次 Polymer Modification
Chemical Modification of Polymers Via Phase Transfer Catalysis
Chemical Modification of Chloromethylated Polystyrene with Phosphine Oxides Using Phase-Transfer Catalysis
Phase Transfer Catalysed Polymer-Supported Wittig Reactions
Influence of Quaternary Ammonium Salts on Cellulose Modification
Polymer Synthesis
Synthesis of Polyethers by Phase-Transfer Catalyzed Polycondensation
Effect of Triethylamine on the Synthesis of Group VI B Polyethers
Use of Phase Transfer Agents in the Synthesis of Antimony (V) Polyamines
Synthesis of Aromatic Polyphosphoanhydrides Based on Phenylphosphonic Dichloride Employing Phase Transfer Agents
Phase-Transfer Polycondensation of Bisphenolate Anions and 1,6-Dibromohexane
Phase Transfer Free Radical Reactions: Polymerization of Acrylic Monomers
Syntheses of Carbon-Carbon Chain Polymers and Polysulfides by Phase Transfer Catalyzed Polycondensation
Anionic Polymerizations with Complex Bases and Their Derivatives
Anionic Polymerization IX: A Review of the Use of Crown Ether as a Modifier in the Anionic Polymerization and Copolymerization of Diene
Synthesis of Ultrahigh Molecular Weight Nylon 4 with Onium Salt and Crown Ether-Containing Catalysts
Mechanistic Aspects
Mechanisms of Catalysis by Polymer-Supported Quaternary Ammonium and Phosphonium Ions
Chiral Polymer Supported Catalysts in Phase Transfer Reactions
Polymer-Supported Optically Active Phase Transfer Catalysts
Asymmetric Selection by Optically Active Polymers in Phase-Transfer System
Synthetic Reactions by Gas-Liquid Phase-Transfer Catalysis
Ion Binding and Chelating Polymers
Ion-Binding Polyesters and Polyamides Containing THF Rings
Ion-Binding Properties of Network Polymers with Pendant Crown Ether Ligands
Selective Cation Binding by Polymers with Pendant Crown Ethers
Polyoxyethylene
Sulfur-Substituted Polyoxyethylenes. Sequential Ether-Thioether Copolymers
Poly(Ethylene Glycol)s as Phase-Transfer Catalysts Synthesis of Derivatives
Photo-Induced Nucleophilic Substitution of Anisoles in the Presence of Polyethylene Glycol (PEG): Usefulness of PEG on Photochemical Reactions
Polyethylene Glycols as Oligomeric Host Solvents: Applications to Oxidation and Reduction Reactions
Koenigs Knorr Reaction Catalyzed by Supported Crown Ethers: An Example of the Polymer Influence
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登録日 2020.06.27
更新日 2020.06.28