Rhodia Operations

Centre National De La Recherche Scientifique

Adisseo France Sas

Université De Poitiers

Ifp Energies Nouvelles

Universite Claude Bernard – Lyon1

Ecole Superieure De Chimie Physique Electronique De Lyon

Le Centre National De La Recherche Scientifique

Didier Morvan

Philippe Marion

Bruno Delfort

Roland Jacquot

Olivier Back

Christophe Vallee

Christophe Geantet

Virginie Belliere-Baca

Hélène Olivier-Bourbigou

Emmanuel Pellier

Eric Muller

Gerald Bocquenet

Francois Jerome

Olivier Peruch

Alban Chappaz

Loic Baussaron

Virginie Belliere-baca

Karine De Oliveira Vigier

Antoine Petrelli

Raphaël Wischert

Jonathan Lai

Matthieu Corbet

Félix Taulou

Raphael Wischert

An agent for initiating a radical addition reaction includes a persulfate and one or more transition metals, in elemental form or in an oxidized form, as well as a method for preparing a compound of formula (I)

Agent for initiating a radical addition reaction and process using it

A method for manufacturing 2-hydroxy-4-(methylthio)butyric acid (HMTBA) from 2-hydroxy-4-methylthio-butyronitrile (HMTBN), where HMTBN is hydrolyzed into HMTBA in the presence of a mineral acid in an aqueous medium, the medium is neutralized by addition of a base, a first phase including at least HMTBA and salts and a second phase containing salts are separated, the method including the separation of the HMTBA from the salts of the first phase, by subjecting the latter to a chromatography.

Method for manufacturing 2-hydroxy-4-(methylthio)butyric acid

The present invention relates to the production of xylene derivatives from furfural and its derivatives. The invention describes new routes for converting furfural and its derivatives into xylene derivatives including novel intermediates.

Production of xylene derivatives

A process for synthesizing at least one levulinate ester, said process comprising the reaction of furfuryl alcohol with at least one other alcohol in the presence of water and at least one catalyst, said furfuryl alcohol being present in a quantity of at least 5% by weight, based on the total weight of the alcohols, and said catalyst comprising at least one triflate ligand and at least one metal selected from bismuth, gallium, aluminum, tin and iron.

Process for the preparation of levulinate esters

Process for the manufacture of an amino ester of formula (I) R&#x2014;O&#x2014;C(O)&#x2014;(CH)&#x2014;NH(I) in which n is an integer from 10 to 15 from an unsaturated ester responding to formula (II) R&#x2014;O&#x2014;C(O)&#x2014;(CH)&#x2014;CH&#x2550;CH&#x2014;R(II) in which Ris either H or a saturated alkyl group containing from 1 to 5 carbon atoms; Ris either H or an alkyl group containing from 1 to 10 carbon atoms, either saturated or containing 1 or 2 unsaturations and bearing optionally a hydroxyl, a carboxylic or an ester group, and m is equal to 7, 8, 9, 10 or 11; said process comprising: submitting the unsaturated ester of formula (II) to a catalytic cross-metathesis reaction with a pentenenitrile chosen among 2-pentenenitrile or 3-pentenenitrile in order to obtain a ester-nitrile responding to formula (III) R&#x2014;O&#x2014;C(O)&#x2014;(CH)&#x2014;CH&#x2550;CH&#x2014;(CH)&#x2014;CN (III) in which m is equal to 7, 8, 9, 10 or 11 and p is equal to 0 or 1, and submitting the obtained ester-nitrile of formula (III) to an hydrogenation in order to obtain the amino ester of formula (I).

Process for the manufacture of an amino ester

A method for preparing a mixture (M) comprising at least an alcohol (Aj), said method comprising the following steps: i) a step in which at least an alcohol (Ai) in gaseous state is oligomerized, thereby producing a mixture (A); ii) a step in which the mixture (A) is condensed to a gaseous stream and to a liquid stream corresponding to a condensed mixture (A); and iii) a step in which the condensed mixture (A) is hydrogenated in the liquid state.

Method for preparing a mixture of alcohols

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Mornant, France

Didier Morvan