Carbonylative Suzuki Couplings of Aryl Bromides with Boronic Acid Derivatives under Base-Free Conditions
摘要:
The carbonylative Suzuki-Miyaura reaction between aryl bromides and arylboronic acid equivalents is herein reported, using base-free conditions and a limited excess of carbon monoxide generated ex situ from stable CO. precursors. Under these conditions, unsymmetrical biaryl ketones were obtained in modest to excellent yields. This method was adapted to the synthesis of the triglyceride and cholesterol regulator drug, fenofibrate, and its C-13-labeled derivative in good yields from the appropriate CO-precursor.
[EN] PROCESS FOR THE HYDROGENATION OF IMINES<br/>[FR] PROCÉDÉ D'HYDROGÉNATION D'IMINES
申请人:CHEMINOVA AS
公开号:WO2010094164A1
公开(公告)日:2010-08-26
A process is provided for the hydrogenation of imines with hydrogen under elevated pressure in the presence of iridium complexes as catalysts and one or more co-catalysts selected among compounds comprising a carbon-halogen bond. Further provided are novel ligands and metal complexes thereof useful for the catalytic hydrogenation of imines with hydrogen. The novel ligands are compounds of the formula (VII) or formula (VIII) in the form of racemates, mixtures of stereoisomers or optically pure stereoisomers, wherein the radicals are as defined in the specification.
A process is provided for the hydrogenation of imines with hydrogen under elevated pressure in the presence of iridium complexes as catalysts and one or more co-catalysts selected among compounds comprising a carbon-halogen bond. Further provided are novel ligands and metal complexes thereof useful for the catalytic hydrogenation of imines with hydrogen.
The novel ligands are compounds of the formula (VII) or formula (VIII) in the form of racemates, mixtures of stereoisomers or optically pure stereoisomers
wherein the radicals are as defined in the specification.
[EN] 1-BENZYL-2-IMINO-4-PHENYL-5-OXOIMIDAZOLIDINE DERIVATIVES AS HIV PROTEASE INHIBITORS<br/>[FR] DÉRIVÉS DE 1-BENZYL-2-IMINO-4-PHÉNYL-5-OXOIMIDAZOLIDINE UTILISÉS EN TANT QU'INHIBITEURS DE LA PROTÉASE DU VIH
申请人:GILEAD SCIENCES INC
公开号:WO2019075291A1
公开(公告)日:2019-04-18
The invention provides a compound of Formula I: or a pharmaceutically acceptable salt thereof as described herin. The invention also provides pharmaceutical compositions comprising a compound of Formula I, processes for preparing compounds of Formula I, therapeutic methods for treating the proliferation of the HIV virus, treating AIDS or delaying the onset of AIDS symptoms in a mammal using compounds of Formula I.
The present invention relates to a process for the hydrogenation of an imines with hydrogen in the presence of iridium catalysts. In particular, the present invention relates to a process for the hydrogenation of imines with hydrogen under elevated pressure in the presence of an iridium catalyst and with or without an inert solvent, wherein the reaction mixture comprises a phosphonium chloride, bromide or iodide in the presence of an acid, which can be an organic or inorganic acid soluble or insoluble in the reaction mixture. Suitable imines are especially those that contain at least one
group. If the groups are substituted asymetrically and are thus compounds having a prochiral ketitine group, it is possible in the process according to the invention for mixtures of optical isomers or pure optical isomers to be formed if enantioselective or diastereoselective iridium catatalysts are used.
[EN] PROCESS FOR PRODUCING N-(HETERO)ARYLAZOLES<br/>[FR] PROCÉDÉ DE PRODUCTION DE N-(HÉTÉRO)ARYLAZOLES
申请人:TAKASAGO PERFUMERY CO LTD
公开号:WO2013032035A1
公开(公告)日:2013-03-07
The present invention provides a process for effectively producing an N-(hetero)arylazole with high yield, which is useful as a medical or agrochemical product, an organic photoconductor material, an organic electroluminescent element material, or the like. The present invention relates to a process for producing an N-(hetero)arylazole, which includes reacting a (hetero)aryl (pseudo)halide with an NH-azole in the presence of: a catalyst including a palladium compound and a coordination compound; and a basic magnesium compound.