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    VERFAHREN ZUR HERSTELLUNG UND ISOLIERUNG VON 2-SUBSTITUIERTEN TETRAHYDROPYRANOLEN
    15.
    发明公开
    VERFAHREN ZUR HERSTELLUNG UND ISOLIERUNG VON 2-SUBSTITUIERTEN TETRAHYDROPYRANOLEN 有权
    方法用于生产和2-取代tetrahydropyranols的隔震

    公开(公告)号：EP2580202A1

    公开(公告)日：2013-04-17

    申请号：EP11723079.7

    申请日：2011-06-06

    Applicant: BASF SE

    Inventor： GRALLA, Gabriele ,  BECK, Karl ,  KLOS, Margarethe ,  GRIESBACH, Ulrich

    IPC: C07D309/10

    CPC classification number: C07D309/10

    Abstract: Process for the preparation of 2-substituted 4-hydroxy-4-methyltetrahydropyrans of the formula (I) where the radical R
    1 is a straight-chain or branched alkyl or alkenyl radical having 1 to 12 carbon atoms, an optionally alkyl-substituted cycloalkyl radical having in total 3 to 12 carbon atoms or an optionally alkyl- and/or alkoxy-substituted aryl radical having in total 6 to 12 carbon atoms, comprising the reaction of 3-methylbut-3-en-1-ol of the formula (II) with an aldehyde of the formula (III): R
    1 -CHO, where the radical R
    1 has the same meaning as in formula (I) and where the reaction is carried out in the presence of water and in the presence of a strongly acidic cation exchanger, and then the isolation and/or the distillative separation is carried out in a dividing wall column or in an interconnection of (at least) two distillation columns in the form of a thermal coupling and one or more side take-off points at an absolute operating pressure of up to 500 mbar.

    RÜCKGEWINNUNG VON BIS(DIARYLPHENOL)-LIGANDEN BEI DER HERSTELLUNG VON ISOPULEGOL
    18.
    发明公开
    RÜCKGEWINNUNG VON BIS(DIARYLPHENOL)-LIGANDEN BEI DER HERSTELLUNG VON ISOPULEGOL 有权
    RüCKGEWINNUNGVON BIS（DIARYLPHENOL）-LIGANDEN BEI DER HERSTELLUNG VON ISOPULEGOL

    公开(公告)号：EP2064169A1

    公开(公告)日：2009-06-03

    申请号：EP07803136.6

    申请日：2007-08-31

    Applicant: BASF SE

    Inventor： HEYDRICH, Gunnar ,  GRALLA, Gabriele ,  EBEL, Klaus

    IPC: C07C29/17 ,  C07C29/56 ,  C07C29/80 ,  C07C35/12 ,  C07C35/17

    CPC classification number: C07C29/56 ,  B01J31/0214 ,  B01J31/143 ,  B01J31/4015 ,  B01J2531/31 ,  C07B2200/07 ,  C07C29/172 ,  C07C29/80 ,  C07C2601/14 ,  Y02P20/584 ,  C07C35/12 ,  C07C35/17

    Abstract: The invention relates to a method for preparing a reaction product containing aluminium, obtained during the production of isopulegol, by the cyclization of citronellal in the presence of complex compounds, said product containing at least one ligand of formula (I), in which: Ar1, Ar2, Ar3, Ar4 are selected from C6-C15 aryl groups or C2-C15 heteroaryl groups; R1, R2, R3, R4 are selected from H, C1-C6 alkyl, C1-C6 perfluoroalkyl, C1-C6 alkoxy, C7-C12 aralkyl, halogen, SiR5bR6bR7b, C6-C10 aryl, NR8bR9b, SR10b, or NO2; and R1 or R2 and/or R3 or R4 together with A can form an aromatic or non-aromatic cycle. According to said method, a) the reaction product containing aluminium is separated by distillation, b) the bottom product that is poor in isopulegol is brought into intimate contact with an aqueous base and c) the ligand of formula (I) is isolated from the organic phase, preferably by crystallization. In addition, the invention relates to a method for producing isopulegol and to a method for producing menthol.

    Abstract translation: 本发明涉及通过在复合化合物存在下环绕香茅醛来制备含铝反应产物的方法，所述复合化合物包含至少一种式（I）的配体，其中Ar 1，Ar 2，Ar 3 ，Ar 4选自C 6 -C 15 - 芳基或C 2 -C 15 - 杂原子; R1，R2，R3，R4选自H，C1-C6-烷基，C1-C6-全氟烷基，C1-C6-烷氧基，C7-C12-芳烷基，卤素，SiR5bR6bR7b，C6-C10-芳基，NR8bR9b，SR10b， NO2; 并且其中R 1或R 2和/或R 3或R 4与A一起可以形成芳族或非芳族的环; 等等。; 其中a）使含铝的反应产物进行蒸馏分离，b）将异底三糖消耗的底部产物与碱水溶液紧密接触，和c）式（I）的配体与有机物分离出来 相，优选通过结晶。 此外，本发明涉及一种生产异胡列酮的方法和一种制备薄荷醇的方法。

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