PALLADIUM-CATALYZED DECARBONYLATION OF FATTY ACID ANHYDRIDES FOR THE PRODUCTION OF LINEAR ALPHA OLEFINS
申请人:CALIFORNIA INSTITUTE OF TECHNOLOGY
公开号:US20140155666A1
公开(公告)日:2014-06-05
The present invention is directed to methods of forming olefins, especially linear alpha olefins from fatty acids or anhydrides, each method comprising: contacting an amount of precursor carboxylic acid anhydride with a palladium catalyst comprising a bidentate bis-phosphine ligand in a reaction mixture so as to form an olefin in a product with the concomittant formation and removal of CO and water from the reaction mixture, either directly or indirectly, wherein the reaction mixture is maintained with a sub-stoichiometric excess of a sacrificial carboxylic acid anhydride, an organic acid, or both, said sub-stoichiometric excess being relative to the amount of the precursor carboxylic acid anhydride. The precursor carboxylic acid anhydride may be added to the reaction mixture directly or formed in situ by the reaction between at least one precursor carboxylic acid with a stoichiometric amount of the sacrificial acid anhydride.
NAPHTHENIC HYDROCARBON ADDITIVES FOR DIARYL PHOSPHIDE SALT FORMATION
申请人:RODAK Nicholas J.
公开号:US20100234642A1
公开(公告)日:2010-09-16
The invention relates to the use of polycyclic aromatic hydrocarbons (PAHs) such as naphthalene and its alkyl, aryl, or heteroatom substituted analogs, that act as catalysts in the presence of an alkali metal (Li, K, Na) for the reduction of electron-deficient and electron-rich triaryl phosphines to their corresponding alkali metal diaryl phosphide salts. The process is also useful for the catalysis of triaryl phosphine chalcogen adducts such as the sulfides, oxides, and selenides, diaryl(halo)phosphines, triaryl phosphine-borane adducts, and tetra-aryl bis(phosphines) that can also be reduced to their corresponding alkali metal diaryl phosphide salts. The invention also relates to small molecule PAHs and polymer tethered PAHs naphthenics.
METAL COMPLEX, PYRIDYLPHOSPHINE COMPOUND, AND METHOD FOR PRODUCING ALKYL METHACRYLATE
申请人:Sumitomo Chemical Co., Ltd
公开号:EP2487179A1
公开(公告)日:2012-08-15
A metal complex having a pyridylphosphine compound represented by the formula (1)
and a Group 10 metal atom of the periodic table.
具有由式(1)表示的吡啶膦化合物的金属配合物
和元素周期表中第 10 族金属原子的金属配合物。
NOVEL RUTHENIUM COMPLEX AND PROCESS FOR PRODUCING OPTICALLY ACTIVE ALCOHOL COMPOUND USING SAME AS CATALYST
申请人:Takasago International Corporation
公开号:EP2695887A1
公开(公告)日:2014-02-12
The present invention provides: a novel ruthenium complex which has excellent catalytic activity with respect to reactivity in the reduction of a multiple bond, in particular, in the asymmetric reduction of a carbonyl compound, enantioselectivity, etc.; a catalyst which comprises the ruthenium complex; and a process for producing optically active compound, in particular, an optically active alcohol compound, using the catalyst. The ruthenium complex has a ruthenacyclic structure. The catalyst is a catalyst for asymmetric reduction which comprises the ruthenium complex.
[1,2,4]TRIAZOLO[1,5-C]PYRIMIDINE DERIVATIVE AS A2A RECEPTOR INHIBITOR
申请人:Medshine Discovery Inc.
公开号:EP3611174A1
公开(公告)日:2020-02-19
Provided are a compound represented by formula (I), an isomer or a pharmaceutically acceptable salt thereof, and an application of the same in preparing a drug for treating a disease related to A2A receptor. The R1, R2, R3, ring A, ring B, n, and m are as defined in the specification.
本发明提供了一种由式(I)代表的化合物、其异构体或药学上可接受的盐,以及其在制备治疗与 A2A 受体有关的疾病的药物中的应用。 R1、R2、R3、环 A、环 B、n 和 m 如说明书中所定义。