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    1.
    发明专利
    未知

    公开(公告)号：ES2176855T3

    公开(公告)日：2002-12-01

    申请号：ES98109834

    申请日：1998-05-29

    Applicant: BASF AG ,  MAX PLANCK GESELLSCHAFT

    Inventor： STURMER RAINER DR ,  BORNER ARMIN DR ,  HOLZ JENS DR ,  VOSS GUDRUN

    IPC: B01J31/22 ,  B01J31/24 ,  C07B53/00 ,  C07C45/50 ,  C07F9/6568 ,  C07F15/00

    Abstract: Phospholane and diphospholane compounds of formula (I) are new. R , R = independently 1-6C alkyl, aryl or alkylaryl (R may also be H); Either A has the same meanings as R , or is a group of formula (i), where B is a 1-5C bridging group. Also claimed are metal complexes of (I) whose metal atom is selected from Rh, Ru, Ir, Pd, Pt or Ni. Also claimed is a method for asymmetric hydrogenation of a starting compound, which comprises reacting it with hydrogen in the presence of the metal complex at 1 - 2 bar.

    2.
    发明专利
    未知

    公开(公告)号：ES2182451T3

    公开(公告)日：2003-03-01

    申请号：ES99124191

    申请日：1999-12-03

    Applicant: BASF AG

    Inventor： STURMER RAINER DR ,  BALDENIUS KAI-UWE DR

    IPC: B65D33/28 ,  C07D309/30 ,  C07D311/66 ,  C07D311/70 ,  C07D407/04 ,  C07D311/74

    Abstract: Preparation of substituted chroman derivatives in multi-stage process from acrolein-aldehyde starting material via new intermediates. Preparation of substituted chroman derivatives of formula (VII) comprises: (a) reacting an acrolein-aldehyde of formula (I) with an acrylonitrile-, acrolein-, acrolein-acetal-, allyl-alcohol- or allyl ether of formula (II) to give the corresponding 3,4-dihydro-2H-pyran of formula (III); (b) treating (III) with an acid to give the corresponding 5-oxo derivative of formula (IV); (c) reacting this with a substituted vinyl-ketone of formula (V) to give a chromen-6-one of formula (VI); and (d) dehydrating to give (VII). X = CN, COOR3, CHO, CH2OR7 or CH(OR8)2; R1 = 1-4C alkyl, 6-18C aryl, 7-18C aralkyl, optionally halogenated 1-4C acyl or an acid labile hydroxy protecting group; R2 = 1-23C alkyl, 2-23C alkenyl, 6-18C aryl or 7-18C aralkyl; R3 = H, 1-4C alkyl, 1-4C haloalkyl, 1-4C hydroxyalkyl or 1-4C aminoalkyl; R4-R6 = H or 1-4C alkyl; R7 = H or 1-4C alkyl; R8 = 1-4C alkyl; or R8+R8 = 2-6C alkenyl optionally branched and optionally substituted by 1-2 carboxyl, cyclohexyl or phenyl. Independent claims are included for: (1) pyran derivatives (III) as new; (2) preparation of (III) using step (a) as above; (3) tetrahydropyran derivatives (IV); (4) preparation of (IV) using steps (a) and (b) as above; (5) chromen-6-one derivatives (VI); (6) preparation of (VI) using step (c) as above.

    4.
    发明专利
    未知

    公开(公告)号：ES2215533T3

    公开(公告)日：2004-10-16

    申请号：ES00120644

    申请日：2000-09-21

    Applicant: BASF AG

    Inventor： SCHEIN KARIN DR ,  BALDENIUS KAI-UWE DR ,  SIEGEL WOLFGANG DR ,  STURMER RAINER DR ,  RUFF DETLEF DR ,  JAEDICKE HAGEN DR

    IPC: C07B61/00 ,  C07C45/46 ,  C07C49/825 ,  C07C67/42 ,  C07C69/017 ,  C07C69/16

    Abstract: Preparation of monoacetylated hydroquinone compound comprises reacting a dicetylphenol compound with peroxo compounds optionally using an acid in one reaction step. Preparation of monoacetylated hydroquinone compound of formula (I) comprises reacting a dicetylphenol compound of formula (II) with peroxo compounds optionally using an acid. R1-R3 = H or Me. Independent claims are included for: (1) preparation of (II) by reacting phenol compounds of formula (III) with an acetylation agent using an acid catalyst; (2) preparation of monoacetylated hydroquinone compounds (I) by reacting (III) with an acetylation agent using an acid catalyst to give (II) and further reacting with peroxo compounds, optionally in the presence of an acid; and (3) compounds of formula (Ia)-(Ie).

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