由2-(二苯基膦基)吡啶(PyrPhos)衍生物Cu 2 X 2 L 3和Cu 2 X 2 LP 2桥接的双核Cu(I)配合物的众所周知的系统(L =桥接配体,P =辅助配体)伴随着无穷无尽的可变性选项。在这项工作中,研究了取代基和修饰对NP桥联配体的膦部分的影响。在先前的研究中,发现PyrPhos家族的铜络合物的最低未占据分子轨道(LUMO)的位置位于NP桥基配体上,并可以在整个可见光谱范围内进行颜色调整。多种基于三甲基化的2-(双(4-(甲基苯基)膦基)-4-甲基吡啶(Cu-1b-H,Cu-1b-MeO和Cu-1b-F)的双核Cu(I)络合物带有2-(双(4-氟苯基)膦基)吡啶(Cu-6a-H)具有吸电子性氟原子,并且在NP桥接配体上有许多其他变化。通过单晶X射线衍射分析确认了几乎所有的铜络合物。除了电子性质和光物理测量的理论TDDFT研究以外,大多数膦改性的Cu(I)配合物还在具有不
由2-(二苯基膦基)吡啶(PyrPhos)衍生物Cu 2 X 2 L 3和Cu 2 X 2 LP 2桥接的双核Cu(I)配合物的众所周知的系统(L =桥接配体,P =辅助配体)伴随着无穷无尽的可变性选项。在这项工作中,研究了取代基和修饰对NP桥联配体的膦部分的影响。在先前的研究中,发现PyrPhos家族的铜络合物的最低未占据分子轨道(LUMO)的位置位于NP桥基配体上,并可以在整个可见光谱范围内进行颜色调整。多种基于三甲基化的2-(双(4-(甲基苯基)膦基)-4-甲基吡啶(Cu-1b-H,Cu-1b-MeO和Cu-1b-F)的双核Cu(I)络合物带有2-(双(4-氟苯基)膦基)吡啶(Cu-6a-H)具有吸电子性氟原子,并且在NP桥接配体上有许多其他变化。通过单晶X射线衍射分析确认了几乎所有的铜络合物。除了电子性质和光物理测量的理论TDDFT研究以外,大多数膦改性的Cu(I)配合物还在具有不
[EN] METHOD FOR PRODUCING a, ß-UNSATURATED CARBOXYLATE, AND CATALYST FOR PRODUCING THEREOF<br/>[FR] PROCÉDÉ DE FABRICATION D'UN CARBOXYLATE ?,?-INSATURÉ ET CATALYSEUR POUR SA FABRICATION
申请人:SUMITOMO CHEMICAL CO
公开号:WO2011111806A1
公开(公告)日:2011-09-15
The provision of a method for producing an α,β-unsaturated carboxylate, comprising a step of reacting an acetylene compound represented by formula (1): wherein R represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, carbon monoxide, and an alcohol compound in the presence of a catalyst prepared from a phosphine compound, an acid, and a compound having a platinum group element, the acid consisting of a Lewis acid.
[EN] PROCESS FOR PRODUCING ALKYL METHACRYLATE<br/>[FR] PROCÉDÉ DE PRODUCTION DE MÉTHACRYLATE D'ALKYLE
申请人:SUMITOMO CHEMICAL CO
公开号:WO2013141004A1
公开(公告)日:2013-09-26
An object of the present invention is to provide a process for efficiently producing an alkyl methacrylate. The present invention provides a process for producing an alkyl methacrylate comprising reacting carbon monoxide and an alcohol having 1 to 3 carbon atoms with methylacetylene in the presence of a catalyst comprising a Group 10 metal compound, a protonic acid and a phosphine compound, wherein the methylacetylene has a propadiene content of 50 ppm by weight or less, the use amount of the methylacetylene is 200000 mol or more based on 1 mol of the Group 10 metal compound, and the reaction is performed in the presence of water in an amount of 40000 mol or less based on 1 mol of the Group 10 metal compound.