中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

97 records (took 0.024 seconds)

    PROCESS FOR PRODUCTION OF 3-ARYL-IZOBUTHYL-ALCALOIDES
    11.
    发明专利
    PROCESS FOR PRODUCTION OF 3-ARYL-IZOBUTHYL-ALCALOIDES 未知

    公开(公告)号：HUT51588A

    公开(公告)日：1990-05-28

    申请号：HU454789

    申请日：1989-09-01

    Applicant: BASF AG

    Inventor： BOTT KASPAR ,  HOFFMANN HERWIG ,  SCHEIDMEIR WALTER

    IPC: B01J23/04 ,  B01J31/02 ,  C07B61/00 ,  C07C29/34 ,  C07C29/44 ,  C07C33/20 ,  C07C33/34

    Abstract: Process for the preparation of 3-aryl-isobutanols of the general formula I … … in which… R and R are hydrogen or an alkyl or cycloalkyl radical with up to 8 C atoms, preferably an alkyl radical with 1 to 4 C atoms,… which is characterised in that arylcarbinols of the general formula II … … are reacted with n-propanol in the presence of catalytic amounts of an alkali metal hydroxide or alkali metal oxide at 250 to 350 DEG C in a closed reaction vessel. … The process is particularly important for preparing 3-aryl-isobutanols of the formula I in which R is an alkyl radical with 1 to 4 C atoms and R is hydrogen. The p-methyl-, p-isopropyl- and p-tert.-butylphenylisobutanols obtained in this way in very high selectivity are valuable precursors for the fragrances jasmorange, cyclamenaldehyde and Lysmeral (Lilial ) which are in high demand.

    19.
    发明专利
    未知

    公开(公告)号：AT141266T

    公开(公告)日：1996-08-15

    申请号：AT93917360

    申请日：1993-01-30

    Applicant: BASF AG

    Inventor： MISSLITZ ULF ,  MEYER NORBERT ,  KAST JUERGEN ,  BOTT KASPAR ,  WALTER HELMUT ,  WESTPHALEN KARL-OTTO ,  KARDORFF UWE ,  GERBER MATTHIAS

    IPC: A01N35/10 ,  A01N43/08 ,  A01N43/10 ,  A01N43/16 ,  A01N43/18 ,  A01N43/56 ,  A01N43/80 ,  C07C251/54 ,  C07C323/28 ,  C07C323/47 ,  C07D231/12 ,  C07D261/08 ,  C07D309/06 ,  C07D333/22 ,  C07D335/02

    Abstract: PCT No. PCT/EP93/00215 Sec. 371 Date Aug. 11, 1994 Sec. 102(e) Date Aug. 11, 1994 PCT Filed Jan. 30, 1993 PCT Pub. No. WO93/16063 PCT Pub. Date Aug. 19, 1993.Cyclohexenone oxime ethers I I R1=C1-C6-alkyl; W=unsubstituted or C1-C3-alkyl-substituted C2-C4-alkylene chain; X=NO2, CN, halogen, C1-C4-alkyl, C1-C4-haloalkyl; n=0-3 or 1-5 if all X's are halogen; R2 =C1-C4-alkoxy-C1-C6-alkyl, C1-C4-alkylthio-C1-C6-alkyl, substituted or unsubstituted C3-C7-cycloalkyl, substituted or unsubstituted C5-C7-cycloalkenyl, a substituted or unsubstituted 5-membered saturated heterocycle containing 1 or 2 oxygen and/or sulfur atoms, substituted or unsubstituted 6- or 7-membered heterocycle having 1 or 2 non-adjacent oxygen and/or sulfur atoms and which is saturated or mono- or diunsaturated, substituted or unsubstituted 5-membered heteroaromatic containing 1 or 2N atoms and one O or S atom, phenyl or pyridyl, both of which are unsubstituted or bear 1-3 halogen, NO2, CN, alkyl, alkoxy, alkyl-thio, haloalkyl, alkenyloxy, alkynyloxy and/or -NRaRb substituents; Ra=H, alkyl, alkenyl or alkynyl and Rb=H, alkyl, alkenyl, alkynyl, acyl or substituted or unsubstituted benzoyl; and agriculturally utilizable salts and esters of compounds I with C1-C10-carboxylic acids and inorganic acids.

Patent Agency Ranking