摘要:
The present invention concerns a process for the production of an aldehyde compound by an oxidation reaction of an alcohol compound in the presence of a mesostructured vanadium phosphorus mixed oxide catalyst, at a temperature comprised between 50° C. and 200° C., in presence of an oxidant. The reaction medium may also comprise a solvent.
摘要:
Disclosed is a process to produce vanillin or vanillin derivatives carrying out a one-step reaction starting from guaiacol or guaiacol derivatives and at least a superacid.
摘要:
Disclosed is a process for preparing at least one ether compound, comprising reacting at least one alcohol (I) with at least one polyol (II) in the presence of a functional polymer [polymer (F)] as a catalyst (X), wherein: the alcohol (I) is represented by the general formula (1): R1-OH (1) wherein R1 is a hydrocarbon group having 1 to 36 carbon atoms, the polyol (II) is represented by the general formula (2): R2-(OH) m (2) wherein R2 represents the skeleton moiety of the polyol and m is an integer of from 2 to 20, and polymer (F) is a polymer comprising recurring units derived from at least one ethylenically unsaturated monomer [monomer (M)] and bearing at least one cation exchange group. Further disclosed is a surfactant composition obtained by said process, and featuring an excellent detergency performance.
摘要:
The present invention concerns a process to obtain primary, secondary or tertiary amines, via a direct amination reaction of alcohols in presence of bis(perfluoroalkylsulfonimide) acid or salts thereof catalysts, and derivatives.
摘要:
A process for the preparation of an ether compound is disclose, wherein the ether compound is prepared via a reaction from at least an alcohol (I) and an alcohol (II), optionally using a catalyst X, wherein alcohol (I) and alcohol (II) are forming a biphasic liquid system when mixed together; comprising at least the following steps: a) Producing an alcohol (I)/alcohol (II) emulsion by using as stabilizing species amphiphilic solid particles of nanometric dimension; optionally comprising a catalyst X; b) Proceeding to the reaction of the ether compound by setting temperature, and c) Isolating the ether compound.
摘要:
A process for the preparation of an ether compound is disclose, wherein the ether compound is prepared via a reaction from at least an alcohol (I) and an alcohol (II), optionally using a catalyst X, wherein alcohol (I) and alcohol (II) are forming a biphasic liquid system when mixed together; comprising at least the following steps: a) Producing an alcohol (I)/alcohol (II) emulsion by using as stabilizing species amphiphilic solid particles of nanometric dimension; optionally comprising a catalyst X; b) Proceeding to the reaction of the ether compound by setting temperature, and c) Isolating the ether compound.
摘要:
A process for the production of aromatic primary amines, by reacting an aromatic dialdehyde with hydrogen and ammonia or an ammonia-liberating compound, in the presence of a hydrogenation catalyst and an amine, wherein the molar ratio of the amine to the aromatic dialdehyde is no less than 1:4 at the start of the reaction.
摘要:
The present invention relates to a novel polyamide synthesized from biobased monomers. The novel polyamide comprises the repeat unit of following formula (I). The present invention also relates to the process for the preparation of said polyamide, to its uses and to articles and compositions comprising said polyamide.
摘要:
The present disclosure relates to a novel polyamide synthesized from biobased monomers. The novel polyamide comprises the repeating unit of formula I, described herein, in which R represents a covalent bond or a divalent hydrocarbon-based group chosen from saturated or unsaturated aliphatics, saturated or unsaturated cycloaliphatics, aromatics, arylaliphatics and alkylaromatics. The present disclosure also relates to a process for preparing the said polyamide, to its uses, and to articles and compositions comprising the said polyamide.
摘要:
The present disclosure relates to a process for the production of aromatic primary amines, by reacting an aromatic dialdehyde with hydrogen and ammonia or an ammonia-liberating compound, in the presence of a hydrogenation catalyst and an amine, wherein the molar ratio of the amine to the aromatic dialdehyde is no less than 1:4 at the start of the reaction.