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    CONTINUOUS PROCESS FOR PREPARING MENTHOL IN PURE OR ENRICHED FORM
    1.
    发明申请
    CONTINUOUS PROCESS FOR PREPARING MENTHOL IN PURE OR ENRICHED FORM 审中-公开
    用于制备纯净或增强形式的MENTHOL的连续方法

    公开(公告)号：US20140158515A1

    公开(公告)日：2014-06-12

    申请号：US13790465

    申请日：2013-03-08

    申请人： BASF SE

    发明人： Gunnar Heydrich ,  Gabriele Gralla ,  Klaus Ebel ,  Wolfgang Krause ,  Nawid Kashani-Shirazi

    IPC分类号： B01D3/14 ,  C07C29/80

    CPC分类号： B01D3/141 ,  B01D3/14 ,  C07B2200/07 ,  C07C29/80 ,  C07C2601/14 ,  C07C35/12 ,  C07C35/17

    摘要： The present invention relates to a continuous process for preparing racemic or optically active menthol in pure or enriched form by distillatively separating menthol from substance mixtures which comprise essentially menthol and diastereomers thereof. This distillative separation is performed in a dividing wall column with 50 to 300 theoretical plates and one or more side draw points at an absolute operating pressure of 5 to 500 mbar.

    摘要翻译： 本发明涉及通过将薄荷醇与基本上含有薄荷醇和非对映异构体的物质混合物蒸馏分离来制备纯的或富集形式的外消旋或光学活性薄荷醇的连续方法。 该蒸馏分离在具有50至300个理论塔板和一个或多个侧向牵引点的分隔壁塔中进行，其绝对操作压力为5至500毫巴。

    Process for preparing 2,3-unsaturated alcohols
    3.
    发明授权
    Process for preparing 2,3-unsaturated alcohols 有权

    公开(公告)号：US11407700B2

    公开(公告)日：2022-08-09

    申请号：US16307197

    申请日：2017-06-06

    申请人： BASF SE

    发明人： Stephan Zuend ,  Andreas Keller ,  Gabriele Gralla ,  Wolfgang Krause

    IPC分类号： C07C29/141 ,  B01J23/89 ,  B01J37/00 ,  B01J37/02 ,  B01J37/04 ,  B01J37/06 ,  C11B9/00

    摘要： The present invention provides a process for preparing an unsaturated alcohol of the formula (I), wherein one of R1 and R2 is preferably C2-C10-alkyl or C2-C10-alkenyl containing one double bond and the other one is preferably hydrogen or methyl; R3 is preferably hydrogen; which comprises subjecting an educt composition including at least 75% by weight of an unsaturated aldehyde of the formula (II) wherein R1, R2 and R3 preferably have the above defined meanings, to a hydrogenation in the presence of a catalyst and a tertiary amine; wherein the tertiary amine is used in an amount ranging from 0.001 to 0.7% by weight, based on the total amount of the liquid reaction mixture. The invention further relates to the nerol compound obtainable by the inventive process, to a fragrance or aroma substance composition comprising the nerol compound obtainable by the inventive process, to a method for imparting and/or intensifying an odor or flavor of a product, and also to perfumed or aromatized products comprising a nerol compound obtainable by the inventive process.

    Method for the production of 4,4′-[1-(trifluoromethyl)alkylidene]-bis-(2,6-diphenylphenols)
    8.
    再颁专利
    Method for the production of 4,4′-[1-(trifluoromethyl)alkylidene]-bis-(2,6-diphenylphenols) 有权
    制备4,4' - [1-（三氟甲基）亚烷基] - 双（2,6-二苯基苯酚）

    公开(公告)号：USRE46151E1

    公开(公告)日：2016-09-20

    申请号：US14321865

    申请日：2014-07-02

    申请人： BASF SE

    发明人： Gabriele Gralla ,  Gunnar Heydrich ,  Klaus Ebel ,  Wolfgang Krause

    IPC分类号： C07C39/16 ,  C07C39/12 ,  C07C45/74 ,  C07C37/07 ,  C07C37/20 ,  C07C37/62

    CPC分类号： C07C45/74 ,  C07C37/07 ,  C07C37/20 ,  C07C37/62 ,  C07C49/613 ,  C07C49/653 ,  C07C39/15 ,  C07C39/367

    摘要： The present invention relates to a process for preparing 4,4′-[1-(trifluoromethyl)alkylidene]bis(2,6-diphenylphenols), in particular for preparing 4,4′-[1-(trifluoromethyl)ethylidene]bis(2,6-diphenylphenol), which comprises the self-condensation of cyclohexanone in the presence of a basic catalyst to form tricyclic condensation products, dehydrogenation of the resulting tricyclic condensation products in the presence of a supported transition metal catalyst in the condensed phase to form 2,6-diphenylphenol and reaction of the 2,6-diphenylphenol with a trifluoromethyl ketone. The invention further provides an improved process for preparing 2,6-diphenylphenol by aldol self-condensation of cyclohexanone.

    摘要翻译： 本发明涉及一种制备4,4' - [1-（三氟甲基）亚烷基]双（2,6-二苯基苯酚）的方法，特别是制备4,4' - [1-（三氟甲基）亚乙基]双（ 2,6-二苯基苯酚），其包括环己酮在碱性催化剂存在下的自缩合以形成三环缩合产物，所得三环缩合产物在冷凝相中负载的过渡金属催化剂存在下脱氢形成 2,6-二苯基苯酚和2,6-二苯基苯酚与三氟甲基酮的反应。 本发明还提供了通过环己酮的醛醇自缩合制备2,6-二苯基苯酚的改进方法。

    Process for the preparation of 2 substituted tetrahydropyranols
    9.
    发明授权
    Process for the preparation of 2 substituted tetrahydropyranols 有权
    制备2取代四氢吡喃醇的方法

    公开(公告)号：US09428481B2

    公开(公告)日：2016-08-30

    申请号：US14242956

    申请日：2014-04-02

    申请人： BASF SE

    发明人： Gabriele Gralla ,  Ralf Pelzer

    IPC分类号： C07D309/10

    CPC分类号： C07D309/10 ,  Y02P20/582

    摘要： The present invention relates to a process for the preparation of 2-substituted 4-hydroxy-4-methyltetrahydropyrans by reacting 3-methylbut-3-en-1-ol (isoprenol) with the corresponding alkenealdehydes in the presence of a strongly acidic ion exchanger with subsequent hydrogenation. Specifically, the present invention relates to a corresponding process for the preparation of 2-isobutyl-4-hydroxy-4-methyltetrahydropyran by reacting isoprenol with prenal, with subsequent hydrogenation.

    摘要翻译： 本发明涉及通过在强酸性离子交换剂存在下使3-甲基丁-3-烯-1-醇（异戊二醇）与相应的烯醛反应来制备2-取代的4-羟基-4-甲基四氢吡喃的方法 随后进行氢化。 具体地，本发明涉及通过使异戊二烯与前体反应制备2-异丁基-4-羟基-4-甲基四氢吡喃的相应方法，随后进行氢化。