Rhone-poulenc Chimie

Rhodia Chimie

Orogil

Gerard Forat

Laurent Gilbert

Bernard Langlois

Laurent Saint-Jalmes

Jean-Manuel Mas

Georges Cordier

Jean-Michel Grosselin

Claude Wakselman

Marc Tordeux

Nicolas Roques

Georges Rivier

Rosemarie Bailliard

Reactant, compound and process for the perfluoroalkylation of the

The invention relates to a reagent which is useful for the synthesis of oxysulphide-containing fluorine-containing organic derivatives by reacting with an oxide of sulphur, especially sulphur dioxide, characterized in that it comprises:

Reagent and process for the synthesis of oxysulphide-containing

The invention relates to a process and a nucleophilic reagent which is useful for grafting a substituted difluoromethyl group onto a compound containing at least one electrophilic function, characterized in that it comprises:

Process for grafting a substituted difluoromethyl group onto a compound

The subject of the present invention is a new catalytic system and a process for the synthesis of acid halides, especially from haloforms. This process for halogenating by means of a haloform is characterized by the use of a metal chloride, advantageously trivalent, as a catalyst, the solubility of which in the reaction mixture is at least equal to one millimole, preferably 1/100 mole per liter, and the metal chloride also being at least half, advantageously two-thirds and preferably three-quarters in the dissolved state.

Process for the synthesis of acid halides and reactants useful for its

A process for the synthesis of fluorinated organic compounds and a reagent suitable for use in the process. The process is carried out by exchange with fluorides, while preferably agitating the reaction medium with ultrasonic sound.

Process for the synthesis of fluorinated derivatives

A process for the hydrogenation of halogenonitro-aromatic compounds wherein said compounds are contacted with a nickel-, cobalt- or iron-based catalyst, preferably Raney nickel, and hydrogen in the presence of a sulfur-containing compound. Preferably, the sulfur-containing compound is a sulfoxide or sulfone, and the molar ratio of the sulfur-containing compound to the catalyst ranges from about 1:1 to 10:1.

Process for the hydrogenation of halogenonitro-aromatic compounds in the

Novel lubricant additives containing phosphorus and nitrogen and novel lubricant compositions containing between about 0.2 and 10 percent by weight of said additives are provided. The novel lubricant compositions possess improved wear-resistance and improved properties under extreme pressure.

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Lyons, France

Gerard Forat