The use of polymer-supported reagents and scavengers provides an attractive and practical
method for the clean and efficient preparation of novel chemical libraries with potential …

The new edition of a classic text and reference The large chains of molecules known as
polymers are currently used in everything from" wash and wear" clothing to rubber tires to …

Publisher Summary This chapter describes the physical organic aspects of crown-ether
chemistry. It discusses the thermodynamic and kinetic stabilities of crown-ether complexes …

Quaternary Onium Salts. The Influence of Structural Factors and of the Spacer
Chain..................... 173 6.3 Crown Ethers and Cryptands................... 176 6.4 Cosolvents …

Chloromethylated poly (styrene) and chloropropylated silica gel have been reacted with α, ω-
diamines to give diamine modified catalyst supports which have then been covalently …

Polymer-supported phase transfer catalysts are insoluble polymers having covalently bound
functional groups active as catalysts for reactions between anions and neutral organic …

The chemical modification of polymers is a very fruitful method to prepare useful
functionalized macromolecules. Between 1950 and 1955 the chloromethylation of …

Phase-transfer (PT) catalysts, namely, phosphonium salts, have been immobilized on silica
gel; good organofunc-tionalization has been obtained ranging from 1.0 to 0.7 mequiv [PR …

Porphyrins covalently linked to aminomethylated Merrifield polymers, by chlorosulfonation
activation of the porphyrin nucleus, are able to generate singlet oxygen with an efficiency …

Magnetic nanoparticle (MNP)-supported crown ethers were successfully prepared and
evaluated as catalysts for solid–liquid phase-transfer reactions; the catalytic activities of the …