Oligomerization Reactions Using Aluminoxanes

    公开(公告)号:US20190092709A1

    公开(公告)日:2019-03-28

    申请号:US15719107

    申请日:2017-09-28

    IPC分类号: C07C2/36 B01J31/24 B01J31/14

    摘要: Disclosed are processes for oligomerizing ethylene by contacting a catalyst system, ethylene, and optionally hydrogen to form an oligomer product in a reaction zone, wherein the catalyst system comprises: a chromium component comprising an N2-phosphinyl amidine chromium compound complex, an N2-phosphinyl formamidine chromium compound complex, and/or an N2-phosphinyl guanidine chromium compound complex, and an aluminoxane; wherein the aluminoxane is characterized by 400 MHz proton NMR in which: (a) the ratio of peaks found in the range of −0.86 ppm to −0.74 ppm to peaks found in a range of −0.03 ppm to 0.07 ppm is less than or equal to 2.8:1; (b) the ratio of peaks found in the range of −0.03 ppm to 0.025 ppm to peaks found in a range of 0.025 ppm to 0.07 ppm is less than or equal to 15:1; and/or (c) the ratio of peaks found in a range of −0.86 ppm to −0.78 ppm to peaks found in the range of −0.78 ppm to −0.74 ppm is less than or equal to 6.5:1.

    Ferrocenyl ligands for homogeneous, enantioselective hydrogenation catalysts
    5.
    发明授权
    Ferrocenyl ligands for homogeneous, enantioselective hydrogenation catalysts 有权
    用于均相,对映选择性加氢催化剂的二茂铁基配体

    公开(公告)号:US07671225B2

    公开(公告)日:2010-03-02

    申请号:US11579692

    申请日:2005-05-03

    IPC分类号: C07F19/00 C07F17/02

    摘要: Compounds of the formula (I) or (I′), where R1 is a hydrogen atom or C1-C4-alkyl and R′1 is C1-C4-alkyl; X1 and X2 are each, independently of one another, a secondary phosphine group; R2 is hydrogen, R01R02R03Si—, C1-C18.acyl substituted by halogen, hydroxy, C1-C8-alkoxy or R04R05N—, -or R06—X01—C(O)—; R01, R02 and R03 are each, independently of one another, C1-C12-alkyl, unsubstituted or C1-C4-alkyl or C1-C4-alkoxy-substituted C6-C10-aryl or C7-C12-aralkyl; R04 and R05 are each, independently of one another, hydrogen, C1-C12-alkyl, C3-C8-cycloalkyl, C6-C10-aryl or C7-C12-aralkyl, or R04 and R05 together are trimethylene, tetramethylene, pentamethylene or 3-oxapcntylene; R06 is C1-C18-alkyl, unsubstituted or C1-C4-alkyl- or C1-C4-alkoxy-substituted C3-C8-cycloalkyl, C6-C10-aryl or C7-C12-aralkyl; X01 is —O— or —NH—; T is C6-C20-arylene; v is 0 or an integer from 1 to 4; and * denotes a mixture of racemic or enantiomerically pure diastereomers or pure racemic or enantiomerically diastereomers, are excellent chiral ligands for metal complexes as enantioselective catalysts for the hydrogenation of prochiral organic compounds.

    摘要翻译: 式(I)或(I')的化合物,其中R 1是氢原子或C 1 -C 4 - 烷基,R'1是C 1 -C 4烷基; X1和X2各自独立地为次膦基; R2是氢,被卤素,羟基,C1-C8-烷氧基或R04R05N-取代的C1-C18烷基酰基,或 - R06-X01-C(O) - ; R01,R02和R03各自独立地为C1-C12烷基,未取代的或C1-C4-烷基或C1-C4-烷氧基取代的C6-C10-芳基或C7-C12-芳烷基; R 04和R 05彼此独立地为氢,C 1 -C 12 - 烷基,C 3 -C 8 - 环烷基,C 6 -C 10 - 芳基或C 7 -C 12 - 芳烷基,或R 04和R 05一起是三亚甲基,四亚甲基,五亚甲基或3 氧亚麻 R06是C1-C18-烷基,未取代的或C1-C4-烷基 - 或C1-C4-烷氧基取代的C3-C8-环烷基,C6-C10-芳基或C7-C12-芳烷基; X01为-O-或-NH-; T是C 6 -C 20亚芳基; v为0或1至4的整数; 和*表示外消旋或对映体纯的非对映异构体或纯外消旋或对映异构体非对映体的混合物,作为用于前手性有机化合物氢化的对映选择性催化剂的金属络合物的优异手性配体。

    Process for the carbonylation of pentenenitrile
    6.
    发明授权
    Process for the carbonylation of pentenenitrile 失效
    戊烯腈羰基化方法

    公开(公告)号:US06743911B2

    公开(公告)日:2004-06-01

    申请号:US09804891

    申请日:2001-03-13

    IPC分类号: C07D22310

    摘要: Processes to prepare 5-cyanovaleric acid or its ester are provided, by carbonylation of a pentenenitrile, wherein pentenenitrile is reacted with carbon monoxide and water and/or an alcohol in the presence of a catalyst system. The catalyst system contains: (a) a metal of Group VIII or a compound thereof, (b) a certain bidentate phosphine, arsine and/or stibine ligand, and (c) an acid having a pKa less than 3, as measured at 18° C. in an aqueous solution. &egr;-caprolactam is also prepared by reduction of 5-cyanovaleric acid or ester obtained above to 6-aminocaproic acid or ester, and then cyclisation of the 6-aminocaproic acid or ester to &egr;-caprolactam.

    摘要翻译: 提供了制备5-氰基戊酸或其酯的方法,通过羰基化戊烯腈,其中戊烯与一氧化碳和水和/或醇在催化剂体系的存在下反应。 该催化剂体系包含:(a)第VIII族金属或其化合物,(b)某些二齿膦,胂和/或锑配体,和(c)pKa小于3的酸,如在18 通过将上述获得的5-氰基戊酸或酯还原为6-氨基己酸或酯,然后将6-氨基己酸或酯环化为ε-己内酰胺,制备己内酰胺。

    Method for producing cyclic olefin compound

    公开(公告)号:US11987538B2

    公开(公告)日:2024-05-21

    申请号:US18000534

    申请日:2021-06-10

    IPC分类号: C07C1/32 B01J31/24 C07C1/207

    摘要: Provided is a method for producing a cyclic olefin compound, including a step of producing a cyclic olefin compound by acting a divalent nickel complex represented by General Formula (1) to decarbonylate and decarboxylate an alicyclic dicarboxylic acid anhydride, in which the divalent nickel complex includes at least one specific anionic ligand Y:

    Ni(Y)m(L)n  (1)



    wherein Ni is divalent nickel, Y is an anionic monodentate or polydentate ligand and has at least one Ni-E covalent bond, E is a heteroatom or a n-bonding group, m is 1 or 2, L is a neutral ligand, and n is a real number of 0 to 6.

    BUTADIENE TELOMERIZATION CATALYST AND PREPARATION THEREOF

    公开(公告)号:US20180072637A1

    公开(公告)日:2018-03-15

    申请号:US15564543

    申请日:2016-04-01

    IPC分类号: C07C2/40 B01J31/24

    摘要: Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.