Abstract: The present invention is directed to N-alkyldiamide compounds responding to the following formula (I), wherein: R1 or R2 is selected from hydrogen or a linear, branched or cyclic, saturated or unsaturated, hydrocarbon chain having from 1 to 40 carbon atoms, with the proviso that one and only one of R1 or R2 is hydrogen, R is selected from cyclic or branched, saturated or unsaturated, hydrocarbon aliphatic chain having from 2 to 15 carbon atoms. The present invention also relates to the use of the com pounds of formula (I) as a gelling agent and to gel compositions comprising said compounds of formula (I).

Abstract: Diesters are prepared by first hydrolyzing dinitrile compounds into imide compounds and then reacting such imide compounds with at least one alcohol.

Abstract: The present invention relates to a process for preparing at least one diacid compound, comprising a step of hydrolysis reaction of at least one imide compound, performed in the absence of catalyst.

Abstract: The present invention concerns the production of compounds comprising nitrite functions and cyclic imide compounds. More specifically, the invention relates to the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, advantageously of natural and renewable origin, and from methyl-2 glutaronitrile (MGN) or a mixture N of dinitriles comprising methyl-2 glutaronitrile (MGN), ethyl-2 succinonitrile (ESN) and adiponitrile (AdN).

Abstract: The present invention relates to the manufacture of compounds of general formula I or III including nitrile functions. Specifically, the invention relates to the manufacture of compounds including nitrile functions from compounds which include carboxyl functions and which are advantageously of natural and renewable origin.

Abstract: The production of compounds comprising nitrile functions and of cyclic imide compounds is described. Further described, is the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, optionally of natural and renewable origin, and from a mixture N of dinitriles comprising 2-methylglutaronitrile (MGN), 2-ethylsuccinonitrile (ESN) and adiponitrile (AdN).

Abstract: The present invention relates to a process for preparing at least one diacid compound, comprising a step of hydrolysis reaction of at least one imide compound, performed in the absence of catalyst.

Abstract: The present invention relates to a process for preparing a poly(N-acylamide) by reaction between: —at least one compound of the following formula (I): X—R1—Y (I) and —at least one compound of the following formula (II): X?—R2—Y? (II) in which: —R1 and R2 are, independently of one another, chosen from the group consisting of: a linear or branched alkylene group, comprising from 4 to 20 carbon atoms, an arylene group comprising from 5 to 30 carbon atoms, a heteroarylene group comprising from 5 to 30 atoms, a cycloalkylene group comprising from 5 to 30 carbon atoms, an arylalkylene group comprising from 5 to 30 carbon atoms.

Abstract: The present invention relates to the production of compounds comprising nitrile functions and of cyclic imide compounds. It relates more particularly to the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, advantageously of natural and renewable origin, and from 2-methylglutaronitrile (MGN) or a mixture N of dinitriles comprising 2-methylglutaronitrile (MGN), 2-ethylsuccinonitrile (ESN) and adiponitrile (AdN).

Abstract: The present invention relates to a method for preparing lactams using heterogeneous catalysis by hydrogenating at least one compound of the following formula (I), where A is a radical of the following formula (I?) or (II?): —CH(R1)—CH(R2)— (I?); or —CH(R1)—CH(R2)—CH(R3)— (II?); where R1, R2 and R3 are, independently from each other, H, OH, an alkyl radical, or a cycloalkyl radical; and R is H or a straight or branched alkyl radical having 1 to 20, preferably 1 to 10, and more preferably 1 to 4 carbon atoms. Said method is carried out at a pressure of less than 60 bars, preferably 10 to 50 bars, in the presence of a solid hydrogenation catalyst including at least two metals selected from the group of noble metals and transition metals, and an inert substance used as a support, wherein said compound of formula (I) can be used alone or as part of a mixture.

Abstract: Novel dicarboxylic acid diesters and admixture thereof have the formula (I): R1—OOC-A-COOR2??(I) and are advantageously prepared from fusel oils; these are particularly suited for formulation into useful solvent, cosolvent, stripping, crystallization inhibiting, cleaning and degreasing compositions.

Abstract: 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.

Abstract: A method for preparing a mixture (M) including at least one alcohol (Aj), wherein said method includes a gas-phase oligomerization reaction of at least one alcohol (Ai) with a solid acid-base catalyst doped with one or more metals, said reaction being carried out in the presence of hydrogen and at a temperature of no less than 50° C. and strictly less than 200° C.

Abstract: The present invention concerns the production of compounds comprising nitrite functions and cyclic imide compounds. More specifically, the invention relates to the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, advantageously of natural and renewable origin, and from methyl-2 glutaronitrile (MGN) or a mixture N of dinitriles comprising methyl-2 glutaronitrile (MGN), ethyl-2 succinonitrile (ESN) and adiponitrile (AdN).

Abstract: The present invention relates to the manufacture of compounds of general formula I or III including nitrile functions. Specifically, the invention relates to the manufacture of compounds including nitrile functions from compounds which include carboxyl functions and which are advantageously of natural and renewable origin.

Abstract: A hydride transfer process within a reaction between an alcohol and a ketone and in the presence of a heterogeneous catalyst is described. The process can transfer a hydride from an alcohol to a ketone, thus enabling reduction of the ketone and oxidation of the alcohol. Further described, is a process for the simultaneous preparation of cyclohexanone and isopropanol enabling an optimized industrial operation. A mixture of compounds useful for implementing the process and comprising two different ketones and two different alcohols is also described.

Abstract: A process for preparing a mixture (M) comprising at least one alcohol (Aj), wherein said process comprises a reaction for oligomerization in the gas phase of at least one alcohol (Ai), carried out in the presence of a solid catalyst doped with one or more metals, at a temperature greater than or equal to 50° C. and strictly below 200° C. The oligomerization reaction is carried out in the absence of hydrogen.

Abstract: 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.

Abstract: The present invention relates to the production of compounds comprising nitrile functions and of cyclic imide compounds. It relates more particularly to the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, advantageously of natural and renewable origin, and from 2-methylglutaronitrile (MGN) or a mixture N of dinitriles comprising 2-methylglutaronitrile (MGN), 2-ethylsuccinonitrile (ESN) and adiponitrile (AdN).

Abstract: A process for the preparation of imides and also the uses thereof, especially as intermediates for the preparation of solvents, in particular of diester solvents, is described. Further described is a process for preparing cyclic imides and derivatives thereof, especially the corresponding carboxylic acids.