摘要:
The invention relates to a method for production of a catalyst with a porous support and at least one active metal wherein: a porous support is produced with a specific BET surface area of 500 m2/g, said porous support being transparent to an activating radiation, at least one active metal precursor is applied to the porous support with at least one active metal and at least one group bonded to the active metal by a ligand atom, selected from oxygen, sulphur, nitrogen, phosphorous and carbon to generate an adduct including the porous support and the at least one active metal precursor and the adduct is irradiated with the activating radiation which converts the active metal into the reduced form thereof.
摘要:
The invention relates to metal complexes composed of a transition metal and of at least one multidentate ligand of general formulas (Ia) or (Ib), to a method for producing the metal complexes, to the multidentate ligands themselves, to the production thereof, to catalytically active compositions containing the inventive metal complex, to the use of the inventive catalytic composition for polymerizing or copolymerizing olefins, to a method for polymerizing or copolymerizing olefins, during which the inventive catalytic composition is used, and to a polymer or copolymer that can be produced according to the inventive method.
摘要:
The invention concerns a method for selective hydrogenation of diolefin compounds into monoolefin compounds using a catalyst composition comprising at least one salt of transition metal of groups IB, IIB, VB, VIB, VIIB and VIII of the periodic table, at least one ligand and at least one organometallic reducing agent, optionally in the presence of a non-aqueous ionic liquid selected from the group consisting of liquid salts of general formula Q+A- (wherein Q+ represents a quaternary ammonium and/or a quaternary phosphonium and A- represents any anion capable of forming a liquid salt below 90°C).
摘要:
Process for preparing polyoxyalkylene polyether products, which process comprises (i) reacting starter and alkylene oxide in the presence of a double metal cyanide complex catalyst while mixing, and (ii) reacting in a pipe reactor the mixture obtained in step (I) to obtain a polyoxyalkylene polyether product comprising substantially no alkylene oxide, and (iii) removing the product of step (ii) from the process.
摘要:
Provided is a metal complex which can be used in applications, such as catalysts for various chemical reactions, information/electronic materials, and the like, and which especially has a peroxidase-like activity and a high activity in phosphodiester hydrolysis. Also, provided is a novel method for analyzing a hydrogen peroxide using a metal complex having a peroxidase-like activity. A cyclic phenol sulfide metal complex is produced by bringing a cyclic phenol sulfide metal complex represented by the formula with at least one selected from metals of the Groups 8, 1A to 7A, 1B and 3B, and is used as a catalyst for oxidation by hydrogen peroxide or a catalyst for hydrolysis of phosphodiester. Furthermore, hydrogen peroxide is analyzed using the catalyst for hydrolysis. (wherein X 1 represents a hydrogen atom, a hydrocarbon group, a carboxyalkyl group, or a carbamoylalkyl group; Y 1 represents a hydrogen atom, a hydrocarbon group, a halogenated hydrocarbon group, a halogen atom, an acyl group, a hydroxyl group, a carboxyl group, an amido group, an amino group, a nitro group, a cyano group, a chlorosulfonic acid group, an alkoxysulfonyloxy group, or a sulfonic acid group; Z 1 represents Sm 1 , SO, or SO 2 ; m 1 is an integer of from 1 to 7; n 1 is an integer of from 4 to 8).
摘要:
A process for the production of half-sandwich transition metal based catalysts which comprises reacting in a hydrocarbon medium at a temperature from about 20 °C to 60 °C for approximately one to ten hours under an inert atmosphere (a) 1 equivalent of a metallocene dihalide of the general formula (L)(L')MX2 wherein M is a metal atom from Groups IIIB to VIII or the Lanthanide series of the Periodic Table of Elements; X is a halogen atom; L and L' are the same or different, may be bridged to one another or unbridged and are independently a substituted or unsubstituted, π-bonded ligand coordinated to M, with (b) 3 equivalents of an organic acid of formula (I) wherein Q can be the same or different and is independently selected from the group consisting of -O, -NR, -CR2 and -S; Y is either C or S; Z is selected from the group consisting of -OR, -NR2, -CR3, -SR, SiR3, -PR2, -H, substituted or unsubstituted aryl groups; and R can be same or different and is independently a group containing carbon, silicon, nitrogen, oxygen, and/or phosphorus, and (c) 3 equivalents of a trialkylamine of the formula NR'3 wherein R' is a hydrocarbon group containing from 1 to 20 carbon atoms and thereafter recovering the product.
摘要:
A transition metal complex represented by general formula (1) (wherein M1 is a Group 4 transition metal of the periodic table; A is a Group 16 element of the periodic table; B is a Group 14 element of the periodic table; C¿p?1 is a group having a cyclopentadiene-type anionic skeleton; X?1, X2, R1, R2, R3, R4, R5 and R6¿ are each independently hydrogen, halogeno, optionally halogenated C¿1?-C20 alkyl, optionally halogenated C1-C20 substituted silyl or the like, or alternatively R?1, R2, R3, R4, R5 and R6¿ may be united arbitrarily to form a ring); a process for the preparation thereof; an intermediate of the transition metal complex; a process for the preparation of the intermediate; a polymerization catalyst for olefins containing the transition metal complex; and a process for producing olefin polymers.
摘要:
Tripodale Cyclopentadienderivate der allgemeinen Formel (I) worin
E gleich oder verschieden ist und für -N(R) (R), -P(R) (R), -As(R) (R), -Sb(R) (R), -OR, -SR, -SeR, -TeR, wobei R gleich oder verschieden ist und Wasserstoff- einen C 1 - bis C 20 -kohlenstofforganischen oder C 1 - bis C 30 -siliciumorganischen Rest bedeutet, oder E für eine Abgangsgruppe X steht und R 1 , R 2 , R 3 , R 4 , R 5 , R 6 gleich oder verschieden ist und Wasserstoff einen C 1 - bis C 2O - kohlenstofforganischen oder C 1 - bis C 3O -siliciumorganischen Rest bedeutet, Z für den Cyclopentadienylrest oder eine substituierte Cyclopentadienylstruktureinheit steht und T Wasserstoff einen C 1 - bis C 20 -kohlenstofforganischen oder C 1 - bis C 30 -siliciumorganischen Rest bedeutet oder für eine Gruppe E-Y- steht, worin E für -N(R) (R), -P(R) (R), -As(R) (R), -Sb(R) (R), -OR, -SR, -SeR, -TeR oder eine Abgangsgruppe X steht, wobei R gleich oder verschieden ist und Wasserstoff einen C 1 - bis C 2O -kohlenstofforganischen oder C 1 - bis C 3O -siliciumorganischen Rest bedeutet und worin Y eine C 1 - bis C 2O -organische Gruppe ist, die E mit C 1 verbindet.
摘要翻译:式(I)的三环戊二烯衍生物和(ii)式LnM(Tp)m(II)的三峰金属络合物是新的; 其中E =一个(取代的)胺Ä-N(R)(R)Ü,膦Ä-P(R)(R)Ü,胂-a(R)(R)Ü,stibineÄ-Sb )Ü,oxyÄ-ORÜ,thioÄ-SRÜ,硒à-SeRÜ或telluroÄ-TeRÜ组或不稳定组X; R,R 1-6,T = H,1-20C碳 - 有机基或1-30C硅 - 有机基; 或T = E-Y-; Y =将E连接至C 1的1-20 C有机基团; Z =环戊二烯基或取代的环戊二烯基单元; M =过渡金属或主族金属; Tp =(I)或其共轭阴离子; L =阴离子或中性配体; n = 0-7; m = 1-8。 还要求的是制备包括手性化合物的官能化三碘环戊二烯衍生物(III)的方法。