[EN] HYDROGENATION AND DEHYDROGENATION CATALYST, AND METHODS OF MAKING AND USING THE SAME<br/>[FR] CATALYSEUR D'HYDROGÉNATION ET DE DÉSHYDROGÉNATION, ET SES PROCÉDÉS DE FABRICATION ET D'UTILISATION
申请人:GOUSSEV DMITRI
公开号:WO2013023307A1
公开(公告)日:2013-02-21
The present application discloses complexes useful as catalysts for organic chemical synthesis including hydrogenation and dehydrogenation of unsaturated compounds or dehydrogenation of substrates. The range of hydrogenation substrate compounds includes esters, lactones, oils and fats, resulting in alcohols, diols, and triols as reaction products. The catalysts of current application can be used to catalyze a hydrogenation reaction under solvent free conditions. The present catalysts also allow the hydrogenation to proceed without added base, and it can be used in place of the conventional reduction methods employing hydrides of the main-group elements. Furthermore, the catalysts of the present application can catalyze a dehydrogenation reaction under homogenous and/or acceptorless conditions. As such, the catalysts provided herein can be useful in substantially reducing cost and improving the environmental profile of manufacturing processes for variety of chemicals.
Mild and Selective Cobalt‐Catalyzed Chemodivergent Transfer Hydrogenation of Nitriles
作者:Zhihui Shao、Shaomin Fu、Mufeng Wei、Shaolin Zhou、Qiang Liu
DOI:10.1002/anie.201608345
日期:2016.11.14
Herein, we describe a selective cobalt‐catalyzed chemodivergent transferhydrogenation of nitriles to synthesize primary, secondary, and tertiary amines. The solvent effect plays a key role for the selectivity control. The general applicability of this procedure was highlighted by the synthesis of more than 70 amine products bearing various functional groups in high chemoselectivity. Moreover, this
[EN] CATALYTIC CONVERSION OF CARBON DIOXIDE TO METHANOL<br/>[FR] CONVERSION CATALYTIQUE DU DIOXYDE DE CARBONE EN MÉTHANOL
申请人:KAMAL PHARMACHEM INC
公开号:WO2019193483A1
公开(公告)日:2019-10-10
The present disclosure relates to a new catalytic process for the production of methanol from carbon dioxide, comprising: (1) the conversion of carbon dioxide and hydrogen to formic acid or formate salts; (2) converting the formic acid or formate salts to diformate esters of diols; (3) hydrogenating the diformate esters to methanol and diols. The diols produced from the hydrogenation reaction can be recovered and re-used to prepare the diformate esters.
The present disclosure relates to a method for preparing a metal catalyst comprising at least one ligand that is coordinated to the metal through at least one phosphorous (P) atom and at least one nitrogen (N) atom, the method comprising reacting a metal pre-cursor complex with an acid ad salt of an aminophosphine, diaminophosphine, aminodiphosphine or diaminodiphosphine, in the presence of a base.