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    Method for carrying out a gas/fluid two-phase high-pressure reaction
    12.
    发明授权
    Method for carrying out a gas/fluid two-phase high-pressure reaction 有权

    公开(公告)号：US11766653B2

    公开(公告)日：2023-09-26

    申请号：US17274110

    申请日：2019-09-03

    Applicant: BASF SE

    Inventor： Oliver Bey ,  Peter Zehner ,  Andreas Keller ,  Stephanie Renz ,  Mathias Schelwies ,  Rocco Paciello ,  Martin Haubner ,  Guenter Wegner ,  Gerd Tebben ,  Gunnar Heydrich ,  Georg Seeber

    IPC: C07C45/62 ,  B01J10/00 ,  B01J13/02 ,  B01J3/02 ,  B01J3/04 ,  B01J4/00 ,  B01J31/24 ,  C07B53/00

    CPC classification number: B01J10/002 ,  B01J3/02 ,  B01J3/042 ,  B01J4/002 ,  B01J31/2409 ,  C07C45/62 ,  B01J2203/065 ,  B01J2531/822 ,  C07B53/00

    Abstract: A process for performing a continuous gas/liquid biphasic high-pressure reaction, wherein a gas and a liquid are introduced into a backmixed zone of a reactor and in the backmixed zone the gas is dispersed in the liquid by stirring, injection of gas and/or a liquid jet, a reaction mixture consecutively traverses the backmixed zone and a zone of limited backmixing, and a liquid reaction product is withdrawn at a reaction product outlet of the zone of limited backmixing, wherein the reactor comprises: an interior formed by a cylindrical vertically oriented elongate shell, a bottom and a cap, wherein the interior is divided by means of internals into the backmixed zone, the zone of limited backmixing and a cavity, a first cylindrical internal element which in the interior extends in the longitudinal direction of the reactor and which delimits the zone of limited backmixing from the backmixed zone, backmixing-preventing second internal elements in the form of random packings, structured packings or liquid-permeable trays arranged in the zone of limited backmixing and a third internal element which in the interior extends in the longitudinal direction of the reactor and is open at the bottom, wherein the third internal element forms the cavity in which gas bubbles collect and do not escape upwards, thus preventing the volume of the cavity from being occupied by liquid and reducing the reaction volume. The reaction volume of the reactor used in the process can be reversibly reduced in simple fashion. The invention further relates to a process for adapting the reaction volume of a reactor suitable for performing a gas/liquid biphasic high-pressure reaction having an outlet for a liquid reaction product in which an internal element is arranged so as to form a cavity open at the bottom in which gas bubbles collect and do not escape upwards, thus preventing the volume of the cavity from being occupied by liquid and reducing the reaction volume.

    Method for synthesizing optically active carbonyl compounds
    14.
    再颁专利
    Method for synthesizing optically active carbonyl compounds 有权

    公开(公告)号：USRE49036E1

    公开(公告)日：2022-04-19

    申请号：US16521935

    申请日：2019-07-25

    Applicant: BASF SE

    Inventor： Mathias Schelwies ,  Rocco Paciello ,  Gunnar Heydrich ,  Günter Wegner ,  Gerd-Dieter Tebben ,  Martin Haubner ,  Andreas Keller ,  Oliver Bey ,  Stephanie Renz ,  Georg Seeber

    IPC: C07C45/62 ,  C07C29/17 ,  C07C29/56

    Abstract: The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral α,β-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral α,β-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I): in which R1, R2: are identical or different and are C6- to C10-aryl which is unsubstituted or carries one or more, e.g. 1, 2, 3, 4 or 5, substituents which are selected from C1- to C6-alkyl, C3- to C6-cycloalkyl, C6- to C10-aryl, C1- to C6-alkoxy and amino; Z is a group CHR3R4 or aryl which is unsubstituted or carries one or more, e.g. 1, 2, 3, 4 or 5, substituents which are selected from C1- to C6-alkyl, C3- to C6-cycloalkyl, C6- to C10-aryl, C1- to C6-alkoxy and amino, wherein R3 and R4 are as defined in the claims and the description.

    Method for synthesizing optically active carbonyl compounds
    16.
    发明授权
    Method for synthesizing optically active carbonyl compounds 有权

    公开(公告)号：US10301244B2

    公开(公告)日：2019-05-28

    申请号：US15964400

    申请日：2018-04-27

    Applicant: BASF SE

    Inventor： Mathias Schelwies ,  Rocco Paciello ,  Gunnar Heydrich ,  Günter Wegner ,  Gerd-Dieter Tebben ,  Martin Haubner ,  Andreas Keller ,  Oliver Bey ,  Stephanie Renz ,  Georg Seeber

    IPC: C07C45/50 ,  C07C45/62 ,  C07C29/17 ,  C07C29/56

    Abstract: The present invention relates to a process for the preparation of an optically active carbonyl compound by asymmetric hydrogenation of a prochiral α,β-unsaturated carbonyl compound with hydrogen in the presence of at least one optically active transition metal catalyst that is soluble in the reaction mixture and which has rhodium as catalytically active transition metal and a chiral, bidentate bisphosphine ligand, wherein the reaction mixture during the hydrogenation of the prochiral α,β-unsaturated carbonyl compound additionally comprises at least one compound of the general formula (I): in which R1, R2: are identical or different and are C6- to C10-aryl which is unsubstituted or carries one or more, e.g. 1, 2, 3, 4 or 5, substituents which are selected from C1- to C6-alkyl, C3- to C6-cycloalkyl, C6- to C10-aryl, C1- to C6-alkoxy and amino; Z is a group CHR3R4 or aryl which is unsubstituted or carries one or more, e.g. 1, 2, 3, 4 or 5, substituents which are selected from C1- to C6-alkyl, C3- to C6-cycloalkyl, C6- to C10-aryl, C1- to C6-alkoxy and amino, wherein R3 and R4 are as defined in the claims and the description.

    Process for preparing 2,3-unsaturated alcohols
    19.
    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

    Applicant: BASF SE

    Inventor： Stephan Zuend ,  Andreas Keller ,  Gabriele Gralla ,  Wolfgang Krause

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

    Abstract: 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.

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