E.i. Dupont De Nemours and Company

Fundacio Institut Catala D'investigacio Quimica

Vladimir Grushin

Viacheslav Alexandrovich Petrov

Ying Wang

Norman Herron

Nora Sabina Radu

Walter Partenheimer

Leo Ernest Manzer

Daniel David Lecloux

Carmine C Torardi

David Mark Scott

Michael Fryd

Albert Loren Casalnuovo

Mookkan Periyasamy

Daniel David LeCloux

Leo E Manzer

David Lincoln Thorn

Joerg Bruening

Gary A Halliday

Alessandro Zanardi

Process to obtain a trifluoromethylating composition which comprises the reaction between a copper (I) source and a base in the presence of a solvent and between the resulting cuprating reagent with fluoroform.

Process to obtain a trifluoromethylating composition

Alcohols are catalytically oxidized to aldehydes, in particular to benzaldehyde and diformylfuran, which are useful as intermediates for a multiplicity of purposes. The invention also relates to the polymerization of the dialdehyde and to the decarbonylation of the dialdehyde to furan.

Processes for preparing diacids, dialdehydes and polymers

Disclosed is a method for preparing a compound of Formula 1 comprising contacting a compound of Formula 2 with at least one compound of Formula 3 in the presence of a solvent comprising one or more organic solvents selected from ethers and nitriles and a catalytically effective amount of a palladium complex comprising at least one tertiary phosphine ligand of Formula 4 wherein Ris NHRor OR; Ris CHor Cl; Ris H, alkyl, cyclopropyl, cyclopropylmethyl or methylcyclopropyl; Ris H or C-Calkyl; Mis an alkali metal; and R, Rand Rare defined in the disclosure; provided that when Ris Cl, then X is Br. Also disclosed is a method for preparing a compound of Formula 5 wherein R, R, Rand Z are as defined in the disclosure using a compound of Formula 1 characterized by preparing the compound of Formula 1 by the aforedescribed method. 

Process for preparing 2-amino-5-cyanobenzoic acid derivatives

Disclosed is a method for preparing a compound of Formula 1 comprising contacting a compound of Formula 2 with at least one alkali metal cyanide of Formula 3 and a compound of Formula 4.  wherein Ris NHRor OR; Ris CHor Cl; Ris H, C-Calkyl, cyclopropyl, cyclopropylcyclopropyl, cyclopropylmethyl or methylcyclopropyl; Ris H or C-Calkyl; X is Br, Cl or I; and R, R, R, R, Rand Rare as defined in the disclosure. Also disclosed is a method for preparing a compound of Formula 4 wherein Rand Rtogether are a cycloalkadiene bidentate ligand, comprising contacting a compound of Formula 5 wherein Y is Cl, Br or I, with a cycloalkadiene bidentate ligand, at least one metal reducing agent and a nitrile solvent. Also disclosed is a method for preparing a compound of Formula 1 comprising preparing a compound of Formula 4 by contacting a compound of Formula 5 with a cycloalkadiene bidentate ligand and at least one metal reducing agent, and then contacting the reaction mixture comprising the compound of Formula 4 with a compound of Formula 2 and at least one alkali metal cyanide of Formula 3; and further disclosed is a method for preparing a compound of Formula 6 wherein R, R, Rand Z are as defined in the disclosure using a compound of Formula 1, characterized by preparing the compound of Formula 1 by a method disclosed above. 

Oxidation of 5-(hydroxymethyl) furfural to 2,5 diformylfuran and subsequent decarbonylation to unsubstituted furan

A process for making a self-deagglomerating suspension, in particular, a suspension which self-deagglomerates to form a substantially transparent suspension, of finely divided titanium (IV) oxide particles, comprising:

Self-deagglomerating suspensions of titanium (IV) oxides and methods for making them

The disclosure pertains to a process for making a suspension of finely divided titanium (IV) oxide particles, comprising: The suspensions can be dried to recover a powder. Typically the particles are nanoparticles.

Suspensions of titanium (IV) oxide particles and process for their production

Provided are new compounds based on salts of aromatic acids containing perfluoroalkyl substituents. The compounds can be used as surfactants.

Perfluoroalkylated benzoate surfactants

Oxidation of 5-(hydroxymethyl) furfural to 2,5-diformylfuran and subsequent decarbonylation to unsubstituted furan

The disclosure pertains to a process for making anatase titanium dioxide particles, comprising:

Process for making anatase titanium (IV) oxide

The disclosure relates to a process for making a surface treated suspension of finely divided titanium (IV) oxide particles, typically, finely divided titanium (IV) oxide nanoparticles, comprising:

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Hockessin, DE, United States of America

Vladimir Grushin