摘要:
The present invention relates to a process for the preparation of indium acetate comprising the steps: (a) reacting an indium compound with an alkaline compound in a protic solvent to obtain an iridium containing precipitate, where the reaction is conducted in the presence of at least one component (i) selected from oxalic acid, a salt of oxalic acid, formic acid and a salt of formic acid, (b) reacting the precipitate in the presence of at least (i) one compound selected from oxalic acid, a salt of oxalic acid, formic acid and a salt of formic acid, and (ii) CH3CO2H and/or CH3(CO)O(CO)CH3 to give an iridium acetate containing solution. The invention also relates to indium acetate having a low halide content, to an indium containing precipitate and to uses of the iridium containing precipitate of the present invention and the iridium acetate of the present invention.
摘要翻译:本发明涉及一种制备醋酸铟的方法,包括以下步骤:(a)在质子溶剂中使铟化合物与碱性化合物反应,得到含铱的沉淀物,其中反应在至少存在下进行 一种选自草酸,草酸盐,甲酸和甲酸盐的组分(i),(b)在至少(i)一种选自草酸,草酸, 草酸,甲酸和甲酸盐,和(ii)CH 3 CO 2 H和/或CH 3(CO)O(CO)CH 3,得到含铱铱的溶液。 本发明还涉及具有低卤化物含量的醋酸铟,含铟沉淀物以及本发明的含铱沉淀物和本发明的乙酸铱的用途。
摘要:
The present invention relates to a process for the preparation of indium acetate comprising the steps: (a) reacting an indium compound with an alkaline compound in a protic solvent to obtain an iridium containing precipitate, where the reaction is conducted in the presence of at least one component (i) selected from oxalic acid, a salt of oxalic acid, formic acid and a salt of formic acid, (b) reacting the precipitate in the presence of at least (i) one compound selected from oxalic acid, a salt of oxalic acid, formic acid and a salt of formic acid, and (ii) CH3CO2H and/or CH3(CO)O(CO)CH3 to give an iridium acetate containing solution. The invention also relates to indium acetate having a low halide content, to an indium containing precipitate and to uses of the iridium containing precipitate of the present invention and the iridium acetate of the present invention.
摘要翻译:本发明涉及一种制备醋酸铟的方法,包括以下步骤:(a)在质子溶剂中使铟化合物与碱性化合物反应,得到含铱的沉淀物,其中反应在至少存在下进行 一种选自草酸,草酸盐,甲酸和甲酸盐的组分(i),(b)在至少(i)一种选自草酸,草酸, 草酸,甲酸和甲酸盐,和(ii)CH 3 CO 2 H和/或CH 3(CO)O(CO)CH 3,得到含铱铱的溶液。 本发明还涉及具有低卤化物含量的醋酸铟,含铟沉淀物以及本发明的含铱沉淀物和本发明的乙酸铱的用途。
摘要:
The invention relates to a novel process for the preparation of Ruthenium metathesis catalysts of the formula Ruthenium metathesis catalysts have been widely applied in the synthesis of macrocyclic drug compounds.
摘要:
The present invention is directed to a method for the preparation of ruthenium indenylidene carbene catalysts of the type (L)(L′)X2Ru(II)(aryl-indenylidene). The method comprises the steps of reacting the precursor compound Ru(PPh3)nX2 (n=3-4) with a propargyl alcohol derivative in an cyclic diether solvent such as 1,4-dioxane at temperatures in the range of 80 to 130° C. and reaction times of 1 to 60 minutes. Optionally, additional neutral electron donor ligands such as PCy3, phobane ligands or NHC ligands are added to the reaction mixture for ligand exchange. The method includes a precipitation step for purification, after which the product is isolated. The ruthenium-indenylidene carbene catalysts are obtained in high purity and are used as catalysts for metathesis reactions (RCM, ROMP and CM) and as precursors for the synthesis of modified ruthenium carbene catalysts.
摘要:
The invention relates to ruthenium complexes with a chiral ferrocenyldiphosphine ligand, wherein the ruthenium has the oxidation state (+II) and the chiral ferrocenyldiphosphine ligand has bidentate P—P coordination to the ruthenium. The ruthenium complexes are cyclic and with the ferrocenyldiphosphine ligand have an at least eight-membered ring. The ferrocenyldiphosphine ligands are selected from the group consisting of Taniaphos, Taniaphos-OH and Walphos ligands. A process for preparing the Ru complexes is described. The Rn complexes are used as catalysts for homogeneous asymmetric catalysis for preparing organic compounds.
摘要:
The invention relates to ruthenium complexes with a chiral ferrocenyldiphosphine ligand, wherein the ruthenium has the oxidation state (+II) and the chiral ferrocenyldiphosphine ligand has bidentate P—P coordination to the ruthenium. The ruthenium complexes are cyclic and with the ferrocenyldiphosphine ligand have an at least eight-membered ring. The ferrocenyldiphosphine ligands are selected from the group consisting of Taniaphos, Taniaphos-OH and Walphos ligands. A process for preparing the Ru complexes is described. The Rn complexes are used as catalysts for homogeneous asymmetric catalysis for preparing organic compounds.
摘要:
The invention relates to a novel process for the preparation of Ruthenium metathesis catalysts of the formula Ruthenium metathesis catalysts have been widely applied in the synthesis of macrocyclic drug compounds.
摘要:
The invention relates to ruthenium complexes which have a chiral diphosphorus donor ligand and in which the ruthenium has the oxidation state (+11) and the chiral diphosphorus donor ligand has bidentate P—P coordination to the ruthenium. The ruthenium complexes are present in two forms (cationic type A and uncharged type B), are cyclic and have a four- to six-membered ring incorporating the diphosphorus donor ligand. The chiral diphosphorus donor ligands are selected from the group consisting of diphosphines, diphospholanes, diphosphites, diphosphonites and diazaphospholanes. Furthermore, processes for preparing the ruthenium complexes of types A and B, which are based on ligand exchange reactions, are described. The Ru complexes are used as catalysts for homogeneous asymmetric catalysis for preparing organic compounds.
摘要:
The present invention relates to a single-stage process for preparing dienyl-ruthenium complexes of the formula Ru(+II)(dienyl)2, wherein an Ru(II) starting compound of the formula Ru(X)p(Y)q is reacted with a diene ligand in the presence of an inorganic and/or organic base in a single-stage process. Here, polar organic solvents, preferably mixtures of polar organic solvents with water, are used. The dienyl-ruthenium complexes prepared according to the invention are used as precursors for homogeneous catalysts, for producing functional coatings and for therapeutic applications.
摘要:
The present invention relates to a process for preparing ruthenium(0)-olefin complexes of the (arene)(diene)Ru(0) type by reacting a ruthenium starting compound of the formula Ru(+II)(X)p(Y)q (in which X=an anionic group, Y=an uncharged two-electron donor ligand, p=1 or 2, q=an integer from 1 to 6), with a cyclohexadiene derivative or a diene mixture comprising a cyclohexadiene derivative, in the presence of a base. In this process, the arene bound in the (arene)(diene)Ru(0) complex is formed from this cyclohexadiene derivative by oxidation. Suitable ruthenium(II) starting compounds are, for example, RuCl2(acetonitrile)4, RuCl2(pyridine)4 or RuCl2(DMSO)4. The bases used are inorganic or organic bases. The ruthenium(0)-olefin complexes prepared by the process according to the invention have a high purity and can be used as precursors for homogeneous catalysts, for preparation of functional ruthenium- or ruthenium oxide-containing layers and for therapeutic applications.