The present invention concerns a process of oxidizing an alcohol for the production of its corresponding carbonyl compounds wherein the oxidation is performed with oxygen or gases containing oxygen in the presence of a catalyst comprising at least a gold compound and a copper compound. Said alcohol oxidation by gaseous oxidant can achieve a high yield and selectivity with minimized degradation products or waste organic solvents.

A method for preparing a poly(phenylene ether) includes oxidatively polymerizing a poly(phenylene ether) starting material having an initial intrinsic viscosity in the presence of an organic solvent and a copper-amine catalyst to form a reaction mixture including a poly(phenylene ether) having a final intrinsic viscosity that is at least 50% greater than the initial intrinsic viscosity. The method further includes terminating the oxidative polymerization to form a post-termination reaction mixture; combining an aqueous solution comprising a chelant with the post-termination reaction mixture to form a chelation mixture of an aqueous phase comprising chelated copper ion, and an organic phase comprising dissolved poly(phenylene ether); separating the aqueous phase and the organic phase; and isolating the poly(phenylene ether) from the organic phase. High molecular weight poly(phenylene ether)s prepared according to the method described herein are also disclosed.

Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.

The present disclosure discloses an immobilized metalloporphyrin catalyst and its utilization in maleic acid preparation, belonging to the technical field of metalloporphyrin catalytic application. The immobilized metalloporphyrin catalyst is used for catalyzing furfural to prepare maleic acid and is good in catalytic effect, mild in reaction conditions and capable of greatly reducing the energy consumption required in the prior art. The catalyst disclosed by the present disclosure can provide a good microenvironment for a reaction, so that the yield and selectivity of maleic acid are increased; and according to a method disclosed by the present disclosure, the conversion ratio of furfural is 20.4%-95.6%, the yield of maleic acid is 10%-56.1%, and the selectivity is 43.6%-76.1%. Meanwhile, the catalyst is easy to separate and environmentally friendly and may be recycled for many times.

An integrated process is useful for producing 2,5-furandicarboxylic acid (FDCA) and/or a derivative thereof from a six-carbon sugar-containing feed. The process includes a) dehydrating a feed containing a six-carbon sugar unit, in the presence of a bromine source and of a solvent, to generate an oxidation feed that contains at least one of 5-hydroxymethylfurfural (HMF) and/or a derivative or derivatives of HMF in the solvent, together with at least one bromine containing species; b) contacting the oxidation feed from step (a) with a metal catalyst and with an oxygen source under oxidation conditions to produce an oxidation product mixture of at least FDCA and/or a derivative thereof, the solvent, and a residual catalyst: c) purifying and separating the mixture obtained in step (b) to obtain FDCA and/or a derivative thereof and the solvent; and d) recycling at least a portion of the solvent obtained in step (c) to step (a).

A chemoselective and reactive Mn(CF.sub.3-PDP) catalyst system that enables for the first time the strategic advantages of late-stage aliphatic CH hydroxylation to be leveraged in aromatic compounds. This discovery will benefit small molecule therapeutics by enabling the rapid diversification of aromatic drugs and natural products and identification of their metabolites.

Provided herein is a cyclic imide slurry composition and processes for forming and/or using such a composition. The slurry composition comprises solid cyclic imide and organic liquid, such as liquid alkylbenzene, liquid cyclohexane, and/or liquid organic alcohol (such as cyclohexanol). The slurry composition may find particular use in processes in which the cyclic imide serves as an oxidation catalyst (e.g., as a radical initiator). For instance, the slurry composition may be useful in the oxidation of a liquid alkylbenzene such as cyclohexylbenzene to corresponding 1-cyclohexyl-1-phenyl hydroperoxide. Such an oxidation reaction may further be part of an integrated process for the production of phenol and/or cyclohexanone from benzene via hydroalkylation to form cyclohexylbenzene.

A method for producing a sulfoxide derivative represented by general formula (1), ##STR00001##
the method being characterized in that a sulfide derivative represented by general formula (2) ##STR00002##
is reacted with an oxidizing agent in the presence of a catalyst that is a metal-ligand complex containing a metal compound and, as a ligand, a compound represented by general formula (3), ##STR00003##
and in the presence of a benzoic acid compound represented by general formula (4) ##STR00004##

A method for synthesizing 4-(Hydroxymethyl)benzoic acid using P-xylene (PX) as a raw material, including: dissolving PX in an organic solvent to undergo an oxidation reaction with an oxidizing agent under an action of an M-MOF catalyst; and after the oxidation reaction, performing a post-treatment to obtain the 4-(Hydroxymethyl)benzoic acid; wherein, the metal element M in the M-MOF catalyst is Fe, Cu, Cr, Mn, Cu Te, Cu/Cr, Cu/Mn, Fe/Mn, Cr/Fe or Cr/Mn. The by-product produced in the reaction process is little, the yield is high, and the separation is convenient. The acid-base neutralization is not required in the reaction process, reducing pollution. A one-step reaction is employed which has mild reaction conditions, short reaction time, low pollution and is convenient for industrialized mass production; and the obtained 4-(Hydroxymethyl)benzoic acid can be used for preparing medicines and liquid crystal materials having wide applications.

Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.