摘要:
A process for the preparation of an ether compound is disclose, wherein the ether compound is prepared via a reaction from at least an alcohol (I) and an alcohol (II), optionally using a catalyst X, wherein alcohol (I) and alcohol (II) are forming a biphasic liquid system when mixed together; comprising at least the following steps: a) Producing an alcohol (I) / alcohol (II) emulsion by using as stabilizing species amphiphilic solid particles of nanometric dimension; optionally comprising a catalyst X; b) Proceeding to the reaction of the ether compound by setting temperature, and c) Isolating the ether compound.
摘要:
Disclosed is a method for separating electrolyte-containing aqueous phases from an organic phase by means of permeation on a hydrophobic separating agent. The permeated organic solution has a low water content and is largely depleted of electrolytes.
摘要:
Solid-state highly brominated compounds such as solid brominated flame retardants with bromine contents of at least about 60 wt% often contain occluded bromine. Because of their high bromine contents, such compounds have relatively low solubility in common organic solvents. Despite this low solubility, the content of occluded bromine in such solid brominated compounds is effectively reduced by agitating a concentrated agitated slurry of the compound in an inert solvent at a suitable temperature for at least about 1 hour. Thereafter, solids with reduced content of occluded bromine are isolated or recovered from the slurry. Novel products having substantially reduced or eliminated occluded bromine contents and other very desirable characteristics are also provided.
摘要:
The invention is directed to a process for preparing an arylolefin or a substituted arylolefin by palladium-catalyzed arylation of vinylolefin with an aryl halide or substituted aryl halide in a liquid polar organic solvent containing one or more secondary or tertiary amines as hydrogen halide acceptor, mixing at least a portion of the reaction mixture with diluted aqueous acid, and separting the formed organic and aqueous phases.