A method of processing of base-catalysed alkoxylation products using sulphonic acid-containing ion exchangers is described, comprising providing a mixture comprising the alkali-catalysed alkoxylation product to be processed, alcohol having 1 to 4 carbon atoms and water, treating this mixture with a sulphonic acid-containing cation exchanger at >40 C. and removal of the alkoxylation product from the mixture thus treated.

A method of processing of base-catalysed alkoxylation products using sulphonic acid-containing ion exchangers is described, comprising providing a mixture comprising the alkali-catalysed alkoxylation product to be processed, alcohol having 1 to 4 carbon atoms and water, treating this mixture with a sulphonic acid-containing cation exchanger at >40 C. and removal of the alkoxylation product from the mixture thus treated.

A method of processing of base-catalysed alkoxylation products using sulphonic acid-containing ion exchangers is described, comprising providing a mixture comprising the alkali-catalysed alkoxylation product to be processed, alcohol having 1 to 4 carbon atoms and water, treating this mixture with a sulphonic acid-containing cation exchanger at >40 C. and removal of the alkoxylation product from the mixture thus treated.

Methods for the removal of ionic contaminants from a hydrophilic organic solvent by a mixed bed of ion exchange resins are described. A mixed bed of ion exchange resins with gel-type strong-acid cationic ion exchange resin with a specific moisture holding capacity and gel-type anionic ion exchange resin is used in some embodiments of such methods.

Methods for the removal of ionic contaminants from a hydrophilic organic solvent by a mixed bed of ion exchange resins are described. A mixed bed of ion exchange resins with gel-type strong-acid cationic ion exchange resin with a specific moisture holding capacity and gel-type anionic ion exchange resin is used in some embodiments of such methods.

The present invention relates to a method of preparing ortho substituted phenols from 2,5-dimethylfuran and propargyl ethers in the presence of a gold(I) complex. It is particularly advantageous to use 2,5-dimethylfuran as this offers an ecological beneficial synthesis of said ortho substituted phenols.

The present invention relates to a method of preparing ortho substituted phenols from 2,5-dimethylfuran and propargyl ethers in the presence of a gold(I) complex. It is particularly advantageous to use 2,5-dimethylfuran as this offers an ecological beneficial synthesis of said ortho substituted phenols.

A method for manufacturing 1,4-bis(4-phenoxybenzoylbenzene), including: reacting terephthaloyl chloride with diphenyl ether in a reaction solvent and in the presence of a Lewis acid, so as to obtain a product mixture including a 1,4-bis(4-phenoxybenzoylbenzene)-Lewis acid complex; contacting the product mixture with a protic solvent, so as to obtain a first phase containing the Lewis acid and a second phase containing 1,4-bis(4-phenoxybenzoylbenzene); subjecting at least the second phase to a solid/liquid separation step by centrifugal filtration, so as to recover solid 1,4-bis(4-phenoxybenzoylbenzene).

A method for manufacturing 1,4-bis(4-phenoxybenzoylbenzene), including: reacting terephthaloyl chloride with diphenyl ether in a reaction solvent and in the presence of a Lewis acid, so as to obtain a product mixture including a 1,4-bis(4-phenoxybenzoylbenzene)-Lewis acid complex; contacting the product mixture with a protic solvent, so as to obtain a first phase containing the Lewis acid and a second phase containing 1,4-bis(4-phenoxybenzoylbenzene); subjecting at least the second phase to a solid/liquid separation step by centrifugal filtration, so as to recover solid 1,4-bis(4-phenoxybenzoylbenzene).

Disclosed are methods for preparing zingerone from ginger using alkaline solutions, as well as compositions obtained using these methods, and methods for using these compositions. Specifically disclosed are pharmaceutical compositions, and treatment methods employing zingerone in combination with other therapeutics such as gentamicin, vancomycin, and cefotaxime.