A [PEG.sub.1000]-DAIL[Cd[Cl.sub.3]-toluene temperature-dependent biphasic system that regulates homogeneously catalyzed C-O coupling of organic halides with phenols and alcohols under ligand-free conditions

An efficient, experimentally simple, and convenient procedure for the C-O coupling of organic halides with phenols and alcohols in a [PEG.sub.1000]-DAIL[Cd[Cl.sub.3]]-toluene temperature-dependent biphasic system has been developed. The product can be easily isolated by a simple decantation, and the catalytic system can be recycled and reused without loss of catalytic activity. Key words: C-O coupling, organic halide, ionic liquid, thermoregulated ionic liquid biphasic system. On a mis au point une meethode commode, efficace et experimentalement simple de faire un couplage C-O d'halogenures organiques avec des phenols et des alcools dans un systeme biophysique [PEG.sub.1000]-DAIL[Cd[Cl.sub.3]]-toluene qui varie avec la temperature. Les produits peuvent etre facilement isoles par une simple decantation et le systeme catalytique peut etre recycle; et reutilise dans perte d'activite catalytique. Mots-cles : couplage C-O, halogenure organique, liquide ionique, systeme biphasique de liquide ionique soumis a une thermoregulation. [Traduit par la Redaction]
Introduction The carbon-oxygen bond-forming reaction is one of the most fundamental transformations because of the large number of applications of the resulting compounds (ethers) in organic, pharmaceutical, and polymer chemistry. [...]