中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

48 records (took 0.021 seconds)

    PREPARATION OF 1*6*111UNDECANETRIAMINE
    25.
    发明专利
    PREPARATION OF 1*6*111UNDECANETRIAMINE 失效

    公开(公告)号：JPS55153750A

    公开(公告)日：1980-11-29

    申请号：JP6086779

    申请日：1979-05-17

    Applicant: TORAY INDUSTRIES

    Inventor： YASUHARA YUTAKA ,  NISHINO MASAKI

    IPC: C07B61/00 ,  B01J23/00 ,  B01J23/74 ,  C07C67/00 ,  C07C209/00 ,  C07C209/26 ,  C07C209/52 ,  C07C209/62 ,  C07C211/13

    Abstract: PURPOSE:To prepare 1,6,11-undecanetriamine, economically, without using water, by catalytically reducing aminopentyl-tetrahydroazepin with hydrogen gas in the presence of a small amount of ammonia and reduced nickel catalyst. CONSTITUTION:7-(5'-Aminopentyl)-3,4,5,6-tetrahydro-2H-azepin I is catalytically reduced with hydrogen gas in the presence of ammonia and a reduced nickel catalyst to give 1,6,11-undecanetriamine II. Preferably the amount of ammonia is 1.2- 2.5mol on the basis of 1mol of the azepin I and the amount of water is 0-1pts.wt. on the basis of 1pt.wt. of the azepin.

    PREPARATION OF 1* 111UNDECANEDIAMINE
    26.
    发明专利
    PREPARATION OF 1* 111UNDECANEDIAMINE 失效

    公开(公告)号：JPS54103805A

    公开(公告)日：1979-08-15

    申请号：JP829978

    申请日：1978-01-30

    Applicant: TORAY INDUSTRIES

    Inventor： NISHINO MASAKI ,  YASUHARA YUTAKA

    IPC: B01J23/00 ,  B01J23/46 ,  B01J27/00 ,  B01J27/08 ,  B01J27/24 ,  C07C67/00 ,  C07C209/00 ,  C07C209/62 ,  C07C211/09

    Abstract: PURPOSE:To prepare the title compound useful as a raw material of synthetic fibers and synthetic resins, etc., in high reaction rate and selectivity, by the catalytic reduction of the corresponding tetrahydroazepines with hydrogen in the presence of a specific catalyst and an additive. CONSTITUTION:1,11-Undecanediamine is prepared by the catalytic reduction with hydrogen, using 7-(5'-aminopentyl)-3,4,5,6-tetrahydro-2H-azepine of formula I as a starting material, in the presence of at least equimolar amount, based on said starting material, of water and excess amount of hydrogen chloride, using a catalyst containing iridium. The compound of formula I is obtained by the pyrolysis of epsilon- caprolactam or its polymer in the presence of a base, and is in equilibrium with the compound of formula II in the presence of water.

Patent Agency Ranking