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    Process for preparing carboxylic acid esters
    12.
    发明授权
    Process for preparing carboxylic acid esters 有权
    羧酸酯的制备方法

    公开(公告)号：US09085526B2

    公开(公告)日：2015-07-21

    申请号：US13943844

    申请日：2013-07-17

    Applicant: BASF SE

    Inventor： Thomas Schaub ,  Stefan Rüdenauer ,  Daniel Schneider ,  Rocco Paciello

    IPC: C07C67/00 ,  C07C67/40

    CPC classification number: C07C67/40 ,  C07C67/00 ,  C07C69/24

    Abstract: The present invention relates to a process for preparing carboxylic acid esters, comprising the reaction of at least one primary monoalcohol or of a mixture of a primary monoalcohol and at least one alcohol different therefrom in the presence of a transition metal carbene complex catalyst K which has, as central atom M, at least one transition metal atom of group 8, 9 or 10 of the Periodic Table of the Elements (IUPAC) and at least one monodentate N-heterocyclic carbene ligand, in the presence of a base, wherein the catalyst K is prepared by reacting a transition metal compound V which has at least one transition metal atom of group 8, 9 or 10 of the Periodic Table of the Elements (IUPAC), but no carbene ligand, with an imidazolium salt in the presence of the primary monoalcohol and the base, the reaction being carried out without dilution.

    Abstract translation: 本发明涉及一种制备羧酸酯的方法，该方法包括在过渡金属卡宾络合物催化剂K存在下，使至少一种一元醇或一级醇与至少一种与其不同的醇的混合物 ，作为中心原子M，元素周期表（IUPAC）中第8,9或10族的至少一个过渡金属原子和至少一个单齿N-杂环卡宾配体在碱的存在下，其中催化剂 K是通过使具有至少一个元素周期表（IUPAC）的第9或10个过渡金属原子（IUPAC）但不含卡宾配体的过渡金属化合物V与咪唑盐在 初级一元醇和碱，反应在不稀释的情况下进行。

    Low-pressure hydroformylation of diisobutene
    15.
    发明授权
    Low-pressure hydroformylation of diisobutene 有权

    公开(公告)号：US12281063B2

    公开(公告)日：2025-04-22

    申请号：US17798607

    申请日：2021-02-01

    Applicant: BASF SE

    Inventor： Jonas Schwaben ,  Rocco Paciello ,  Rainer Papp

    IPC: C07C45/50

    Abstract: A hydroformylation process for preparing 3,5,5-trimethylhexanal comprising reacting 2,4,4-trimethylpent-2-ene with H2 and CO in a reaction zone in the presence of one or more free organophosphite ligands of the general formula (I) wherein R1, R2, R3, R4 and R5 are each independently H, C1- to C9-alkyl or C1- to C9-alkoxy and R1, R2, R3, R4 and R5 are not H at the same time, and R6, R7, R8, R° and R1° are each independently H, C1- to C9-alkyl or C1- to C9-alkoxy and Re, R7, R8, R° and R1° are not H at the same time, and R11, R12, R13, R14 and R15 are each independently H, C1- to C9-alkyl or C1- to C9-alkoxy and R11, R12, R13, R14 and R15 are not H at the same time, and a homogeneous rhodium catalyst complexed with one or more organophosphite ligands of the general formula (I) at a pressure of 1 to 100 bar abs and a temperature of from 50 to 200° C.

    Method for carrying out a gas/fluid two-phase high-pressure reaction
    16.
    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
    17.
    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
    18.
    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.

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