利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

36 records (took 0.016 seconds)

    Ferrocene diphosphines as ligands for homogeneous catalysts
    4.
    发明授权
    Ferrocene diphosphines as ligands for homogeneous catalysts 失效
    二茂铁二膦作为均相催化剂的配体

    公开(公告)号：US5466844A

    公开(公告)日：1995-11-14

    申请号：US313484

    申请日：1994-09-27

    Applicant: Felix Spindler ,  Amina Wirth-Tijani ,  Heidi Landert

    Inventor： Felix Spindler ,  Amina Wirth-Tijani ,  Heidi Landert

    IPC: B01J31/22 ,  B01J31/24 ,  C07B61/00 ,  C07C67/31 ,  C07C69/732 ,  C07C213/08 ,  C07C231/14 ,  C07C231/18 ,  C07C233/54 ,  C07F15/02 ,  C07F17/02

    CPC classification number: C07F17/02 ,  B01J31/2291 ,  B01J31/2295 ,  B01J31/2409 ,  B01J31/2471 ,  C07C213/08 ,  C07C231/18 ,  C07C67/31 ,  B01J2231/643 ,  B01J2231/645 ,  B01J2531/0205 ,  B01J2531/822 ,  B01J2531/827 ,  B01J2531/842 ,  Y10S526/943

    Abstract: Compounds of the formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.8 alkyl, phenyl or phenyl which is substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy groups; R.sub.2 and R.sub.3 are each independently of the other typically C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl, or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl, or phenyl which is substituted by one to three identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen; R.sub.10 and R.sub.11 are identical and are typically C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl or phenyl which is substituted by 1 to 3 identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen; or R.sub.10 and R.sub.11 are different and are C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.12 cycloalkyl, phenyl or phenyl which is substituted by 1 to 3 identical or different members selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen, and * denotes a stereogenic carbon atom, in the form of their racemates and diastereoisomers or mixtures of diastereoisomers.Rhodium and iridium complexes with these ligands are suitable for use as homogeneous enantioselective catalysts for the hydrogenation of prochiral compounds containing carbon double bonds or carbon/hetero atom double bonds.

    Abstract translation: 式I的化合物其中R 1为C 1 -C 8烷基，苯基或被1至3个C 1 -C 4烷基或C 1 -C 4烷氧基取代的苯基; R 2和R 3各自独立地为其它通常为C 1 -C 12烷基，C 5 -C 12环烷基，苯基或C 1 -C 4烷基 - 或C 1 -C 4烷氧基取代的C 5 -C 12环烷基或被一至三个相同或不同的选自 由C 1 -C 4烷基，C 1 -C 4烷氧基或卤素组成的基团; R 10和R 11是相同的，并且通常是C 1 -C 12烷基，C 5 -C 12环烷基，C 1 -C 4烷基 - 或C 1 -C 4烷氧基取代的C 5 -C 12环烷基或被1至3个相同或不同的选自C1- C4烷基，C1-C4烷氧基或卤素; 或R 10和R 11不同，为C 1 -C 12烷基，C 5 -C 12环烷基，C 1 -C 4烷基 - 或C 1 -C 4烷氧基取代的C 5 -C 12环烷基，苯基或苯基，其被1至3个相同或不同的选自以下的基团取代： C1-C4烷基，C1-C4烷氧基或卤素，和*表示立体异构碳原子，以其外消旋体和非对映异构体的形式或非对映异构体的混合物。 与这些配体的铑和铱配合物适合用作含碳双键或碳/杂原子双键的前手性化合物氢化的均匀对映选择性催化剂。

    Ligands for asymmetric reactions
    9.
    发明授权
    Ligands for asymmetric reactions 失效
    不对称反应配体

    公开(公告)号：US07407910B2

    公开(公告)日：2008-08-05

    申请号：US11473035

    申请日：2006-06-23

    Applicant: Ulrich Berens

    Inventor： Ulrich Berens

    IPC: B01J27/00 ,  C07D233/00

    CPC classification number: C07F15/008 ,  B01J31/1845 ,  B01J31/1865 ,  B01J31/187 ,  B01J31/226 ,  B01J31/2471 ,  B01J2231/321 ,  B01J2231/323 ,  B01J2231/52 ,  B01J2231/643 ,  B01J2531/80 ,  B01J2531/821 ,  B01J2531/822 ,  B01J2531/824 ,  B01J2531/827 ,  B01J2531/828 ,  B01J2531/845 ,  B01J2531/847 ,  C07B53/00 ,  C07C45/505 ,  C07F9/6506 ,  C07F9/65517 ,  C07F9/655354 ,  C07F9/65683 ,  C07F9/65719 ,  C07F15/00 ,  C07F15/0073

    Abstract: The invention relates to a process for the manufacture of bidentate ligands of the formula IA and IIA, characterized in that N,N-(optionally substituted) dialkylamino phosphines bound to an aromatic carbon are lithiated in ortho-position and the lithiated compounds are further converted to said bidentate ligands: wherein X1 is NR, O or S; X2 is CHR1 or CR1; X3 is CHR2 or NR2 or, if X2 is CR1, X3 is CR2 or N; and R, R1 and R2 are radicals such as alkyl groups or R1 and R2 together form an annealed ring; Y1*, Y2* and Y1′* are, independently of each other, an element of the fifth group of the periodic table of elements as such or in thioxo or oxo form; Z1*, Z2*, Z3*, Z4*, Z1′*, Z2′* are, independently of each other, for example halogen, hydrogen, or an unsubstituted or substituted moiety selected from radicals such as alkyl groups; the substituents have otherwise the meanings given in the specification; and the ligands are capable of forming metal complexes, which can be used as catalysts in stereoselective synthesis, especially hydrogenation, of various organic molecules.

    Abstract translation: 本发明涉及制备式IA和IIA的二齿配体的方法，其特征在于与邻位连接的与芳族碳键合的N，N-（任选取代的）二烷基氨基膦进一步转化，并且锂化合物进一步转化 所述二齿配体：其中X 1是NR，O或S; X 2是CHR 1或CR 1; X 3是CHR 2或NR 2 2，或者如果X 2是CR 1，则 >，X 3是CR 2 N或N; 和R 1，R 1和R 2是基团，例如烷基或R 1和R 2共同形成 退火环; Y 1 *，Y 2 *和Y 1 *彼此独立地是元素周期表第五组元素 元素，或硫代或氧代形式; Z 1，Z 2，Z 3，Z 4，Z 1，Z 3， Z 2是独立的，例如卤素，氢或选自基团如烷基的未取代或取代的部分; 取代基另有说明书中给出的含义; 并且配体能够形成金属络合物，其可以用作各种有机分子的立体选择性合成，特别是氢化中的催化剂。

Patent Agency Ranking