[EN] TITANIUM COMPOUNDS AND PROCESS FOR CYANATION OF IMINES<br/>[FR] COMPOSÉS DE TITANE ET PROCÉDÉ DE CYANATION DES IMINES
申请人:AGENCY SCIENCE TECH & RES
公开号:WO2010093327A1
公开(公告)日:2010-08-19
The present invention relates to titanium catalysts for synthesis reactions produced by bringing a reaction mixture comprising a titanium alkoxide and a ligand in contact with water, wherein the ligand is represented by the general formula (e), wherein R1, R2, R3, and R4 are independently a hydrogen atom, an alkyl group, or the like, and (A) represents a group with two or more carbon atoms. The titanium catalysts may be isolated in solid form and may be stored. The invention further relates to a process for cyanation of imines, wherein the process comprises reacting an imine with a cyanating agent in the presence of the titanium catalyst.
申请人:GlaxoSmithKline Intellectual Property Development Limited
公开号:US10364256B2
公开(公告)日:2019-07-30
The present invention relates to biaryl pyrazole compounds of Formula (I)
methods of making them, pharmaceutical compositions containing them and their use as NRF2 regulators.
申请人:GlaxoSmithKline Intellectual Property Development Limited
公开号:US20180282349A1
公开(公告)日:2018-10-04
The present invention relates to biaryl pyrazole compounds of Formula (I)
methods of making them, pharmaceutical compositions containing them and their use as NRF2 regulators.
[EN] TITANIUM COMPOUND AND PROCESS FOR ASYMMETRIC CYANATION OF IMINES<br/>[FR] COMPOSÉ DU TITANE ET PROCÉDÉ DE CYANATION ASYMÉTRIQUE D'IMINES
申请人:AGENCY SCIENCE TECH & RES
公开号:WO2008121076A1
公开(公告)日:2008-10-09
[EN] The present invention relates to titanium catalysts for asymmetric synthesis reactions produced by bringing a reaction mixture obtained by contacting water and a titanium alkoxide into contact with an optically active ligand represented by the general formula (a), wherein R1, R2, R3, and R4 are independently a hydrogen atom, an alkyl group, or the like, and A* represents a group with two or more carbon atoms having an asymmetric carbon atom or axial asymmetry. The invention further relates to a process for asymmetric cyanation of imines, wherein the process comprises reacting an imine with a cyanating agent in the presence of the titanium catalyst. [FR] La présente invention porte sur des catalyseurs au titane pour des réactions de synthèse asymétrique que l'on effectue en amenant un mélange réactionnel obtenu par mise en contact d'eau et d'un alcoolate de titane en contact avec un ligand optiquement actif représenté par la formule générale (a), dans laquelle R1, R2, R3 et R4 sont indépendamment un atome d'hydrogène, un groupe alkyle ou similaire, et A* représente un groupe avec au moins deux atomes de carbone ayant un atome de carbone asymétrique ou une asymétrie axiale. L'invention porte également sur un procédé de cyanation asymétrique d'imines, suivant lequel on fait réagir une imine avec un agent de cyanation en présence du catalyseur au titane.
[EN] TITANIUM COMPOUNDS AND PROCESS FOR CYANATION OF IMINES<br/>[FR] COMPOSÉS DE TITANE ET PROCÉDÉ POUR LA CYANATION D'IMINES
申请人:AGENCY SCIENCE TECH & RES
公开号:WO2010093336A1
公开(公告)日:2010-08-19
The present invention relates to titanium catalysts for synthesis reactions produced by bringing a reaction mixture comprising a titanium alkoxide and a ligand in contact with water, wherein the ligand is represented by the general formula (e): wherein R1, R2, R3, and R4 are independently a hydrogen atom, an alkyl group, or the like, and (A) represents a group with two or more carbon atoms. The titanium catalysts may be isolated in solid form and may be stored. The invention further relates to a process for cyanation of imines, wherein the process comprises reacting an imine with a cyanating agent in the presence of the titanium catalyst.