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146 条记录 (耗时 0.017 秒)

    ZERO-VALENCE TRANSITION METAL COMPLEX AND METHOD OF SYNTHESIZING ORGANOMETALLIC COMPOUND FROM THE SAME AS STARTING MATERIAL
    41.
    发明公开
    ZERO-VALENCE TRANSITION METAL COMPLEX AND METHOD OF SYNTHESIZING ORGANOMETALLIC COMPOUND FROM THE SAME AS STARTING MATERIAL 无效
    零价过渡金属络合物和使用DESKOMPLEXES作为起始原料合成的有机金属化合物的方法

    公开(公告)号：EP1604964A4

    公开(公告)日：2008-01-09

    申请号：EP04711023

    申请日：2004-02-13

    申请人： SEKISUI CHEMICAL CO LTD

    发明人： HIRAIKE HIROSHI ,  MORITA TAKEHARU ,  OZAWA FUMIYUKI ,  KATAYAMA HIROYUKI

    IPC分类号： C07F9/28 ,  C07F15/00 ,  C07F19/00 ,  C08G61/06 ,  C07C7/10 ,  C07C5/00 ,  C07C11/04 ,  C07C13/23 ,  C07C13/263 ,  C07C15/02

    CPC分类号： C07F15/0046

    摘要： A method for effective and inexpensive synthesis of a zero-valence transition metal complex as a starting material for synthesis of a catalyst usable in, for example, production of polyolefins through ring-opening metathesis polymerization of olefins and synthesis of epothilones through ring closing metathesis reaction thereof, and further effective and inexpensive synthesis of an organometallic compound useful as such a catalyst from the zero-valence transition metal complex. In particular, a method of synthesizing zero-valence transition metal complex (C) through reaction between bivalent transition metal complex (A), the bivalent transition metal complex (A) selected from among bivalent ruthenium complexes (A ) and bivalent osmium complexes (A ), and olefin (B), characterized in that after reaction under reducing conditions, the obtained crude products are subjected to hot extraction with a saturated hydrocarbon as an extraction solvent. Further, there is provided a method of synthesizing an organometallic compound, characterized in that the zero-valence transition metal complex (C) is subjected to a one-step reaction with specified compound (D) and neutral ligand (E).

    CATALYST COMPOSITION AND METHOD FOR SELECTIVE DEHYDROGENATION
    47.
    发明授权
    CATALYST COMPOSITION AND METHOD FOR SELECTIVE DEHYDROGENATION 失效
    催化剂组合物和选择性脱氢方法

    公开(公告)号：EP0370054B1

    公开(公告)日：1992-01-15

    申请号：EP88906797.1

    申请日：1988-07-18

    申请人： EASTMAN KODAK COMPANY (a New Jersey corporation)

    发明人： Lentz, Carl Michael ,  Gustafson, Bruce Leroy ,  Wehner, Paul Sherman

    IPC分类号： B01J23/89 ,  C07B35/04 ,  C07C5/00

    CPC分类号： C07C41/18 ,  B01J23/8926 ,  C07C5/325 ,  C07C5/3337 ,  C07C37/001 ,  C07C37/06 ,  C07C67/297 ,  C07C67/317 ,  C07C2521/18 ,  C07C2523/44 ,  C07C2523/72 ,  C07C2523/89 ,  C07C2601/14 ,  C07C39/15 ,  C07C43/23 ,  C07C39/20 ,  C07C43/215 ,  C07C39/21 ,  C07C39/215 ,  C07C69/18 ,  C07C69/76

    摘要： A method for selective dehydrogenation of a compound, comprising contacting a compound of formula (I), wherein each R1, R2, R3 and R4 is independently selected from the group consisting of H, (C1-C20) alkyl, (C3-C20) cycloalkyl, (C6-C20) aryl, (C7-C20) alkylaryl, (C7-C20) aralkyl groups, as well as substituted (C1-C20) alkyl, (C3-C20) cycloalkyl, (C6-C20) aryl, (C7-C20) aralkyl and (C7-C20) arylalkyl moieties, optionally further substituted with -OR, wherein R is R1, R2, R3 or R4; and wherein R1 and R2 or R3 and R4 may be joined as part of a ring structure, at a dehydrogenation temperature in the presence of a catalyst comprising about 0.01 wt % - 19.9 wt % Pd and about 0.01 wt % - 19.9 wt % Cu on a carbon support, wherein the total amount of (Pd + Cu) on the support is about 0.02 wt % to 20 wt %, the weight ratio of Pd:Cu is about 1:1 to 10:1, and the carbon support has a surface area of at least about 100 m2/g and is essentially free of reactive sulfur. A selective dehydrogenation catalyst having the composition described supra is disclosed as is a method of preparing the same. This catalyst is highly selective for dehydrogenating a variety of substrates while minimizing the formation of unwanted hydrogenolysis by-products.

    摘要翻译： 一种化合物的选择性脱氢的方法，包括使下式化合物与其中每个R 1，R 2，R 3和R 4独立地选自H，（C 1 -C 20）烷基，（C 3 -C 20） 环烷基，（C 6 -C 20）芳基，（C 7 -C 20）烷基芳基，（C 7 -C 20）芳烷基以及取代的（C 1 -C 20）烷基，（C 3 -C 20）环烷基，（C 6 -C 20） C7-C20）芳烷基和（C7-C20）芳烷基部分，任选进一步被-OR取代，其中R是R 1，R 2，R 3或R 4; 并且其中R 1和R 2或R 3和R 4可作为环结构的一部分在脱氢温度下在催化剂存在下接合，所述催化剂包含约0.01重量％-19.9重量％的Pd和约0.01重量％-19.9重量％的Cu 碳载体，其中载体上的（Pd + Cu）的总量为约0.02重量％至20重量％，Pd：Cu的重量比为约1:1至10:1，并且碳载体具有 表面积至少约100m 2 / g，基本上不含活性硫。 作为其制备方法，公开了具有上述组成的选择性脱氢催化剂。 该催化剂对于使各种底物脱氢而具有高选择性，同时最小化不想要的氢解副产物的形成。

    An improved synthesis of diethynylbenzene
    48.
    发明公开
    An improved synthesis of diethynylbenzene 失效
    Verbesserte Synthese von Diethinylbenzol。

    公开(公告)号：EP0450318A1

    公开(公告)日：1991-10-09

    申请号：EP91103225.8

    申请日：1991-03-04

    申请人： HERCULES INCORPORATED

    发明人： Carosino, lawrence Enrico ,  Herak, David Charles

    IPC分类号： C07C15/48 ,  C07C5/00

    CPC分类号： C07C1/30 ,  C07C15/48 ,  C07C17/02 ,  C07C22/04

    摘要： A process for making diethynylbenzene by a "one-pot" reaction in which mixed isomers of divinylbenzene (DVB) and bromine are combined in a solvent consisting of sulfolane, at a rate that does not cause the temperature of the reaction to rise above 50°C., the intermediate brominated product is dehydrobrominated, and diethynylbenzene is separated from the dehydrobromination reaction mixture, is disclosed.

    摘要翻译： 通过“一锅”反应制备二乙炔基苯的方法，其中二乙烯基苯（DVB）和溴的混合异构体在不引起反应温度升高到50℃以上的环丁砜组合的溶剂中组合 公开了中间溴化产物是脱溴溴化物，二乙炔基苯与脱溴溴化反应混合物分离。

    Nouvelle zéolite L décationisée, désaluminée et stabilisée et ses utilisations
    49.
    发明授权
    Nouvelle zéolite L décationisée, désaluminée et stabilisée et ses utilisations 失效
    决定，消泡和稳定的ZEOLITE L及其用途

    公开(公告)号：EP0258127B1

    公开(公告)日：1990-03-21

    申请号：EP87401859.1

    申请日：1987-08-10

    申请人： INSTITUT FRANCAIS DU PETROLE

    发明人： Raatz, Francis ,  Petit, Laurent ,  Marcilly, Christian ,  Bournonville, Jean-Paul ,  Dufresne, Pierre ,  Travers, Christine

    IPC分类号： B01J29/28 ,  C10G11/05 ,  C07C5/00 ,  C10G47/16

    CPC分类号： C10G11/05 ,  B01J29/60 ,  B01J2229/16 ,  B01J2229/26 ,  B01J2229/42 ,  C10G47/16

    摘要： 1. A L zeolite of total SiO2 /Al2 O3 molar ratio at least equal to 8, having a potassium content lower than 2.9% by weight, a sodium content lower than 0.5% by weight, crystalline parameters vector a and vector c respectively lower than 1.836 nm and 0.754 nm, a nitrogen adsorption capacity, measured at 77 K, under a P/Ps partial pressure of 0.19, higher than 11% by weight, a benzene adsorption capacity at 30 degrees C under a P/Ps partial pressure of 0.25, higher than 8.5% by weight, said L zeolite having a lattice of secondary pores (mesopores) whose radii range from 0.8 nm to 20 nm, the volume of the secondary pores amounting to 5-70% of the total pore volume.

    摘要翻译： 1.总SiO 2 / Al 2 O 3摩尔比的AL沸石至少等于8，钾含量低于2.9重量％，钠含量低于0.5重量％，结晶参数载体a和载体c分别低于1.836 nm和0.754nm，在77K下，在P / Ps分压为0.19，高于11重量％，在P / Ps分压为0.25的30℃下的苯吸附容量为77K， 所述L沸石具有半径范围为0.8nm至20nm的二次孔格（中孔）晶格，二次孔的体积为总孔体积的5-70％。