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    PROCESS FOR THE ETHERIFICATION OF AMINO ALCOHOLS AT LOW TEMPERATURES
    13.
    发明申请
    PROCESS FOR THE ETHERIFICATION OF AMINO ALCOHOLS AT LOW TEMPERATURES 审中-公开
    在低温下氨基醇的加成方法

    公开(公告)号：US20160176803A1

    公开(公告)日：2016-06-23

    申请号：US14962484

    申请日：2015-12-08

    Applicant: BASF SE

    Inventor： Melanie WEINGARTEN ,  Wolfgang Siegel

    IPC: C07C213/06

    CPC classification number: C07C249/02 ,  C07C213/08 ,  Y02P20/55 ,  C07C251/24 ,  C07C217/08

    Abstract: A process for the preparation of the ether of formula I from an amino alcohol of formula II where R1 and R2 independently from one another are hydrogen or an alkyl group with 1 to 10 C atoms, R3 is an alkyl group with 1 to 10 carbon atoms and X is a bond or a hydrocarbon group with 1 to 10 carbon atoms comprising a) protecting the primary amino group in formula II with a protecting agent b) deprotonating the protected amino alcohol obtained in step a) with a deprotonating agent c) alkylation of the anion obtained in step b) with an alkylation agent to give the corresponding ether and finally d) removal of the protecting group getting back the primary amino group and giving the ether of formula I, wherein process step b) is performed at a temperature of at maximum 120° C. and process step c) is performed at a temperature of at maximum 80° C.

    Abstract translation: 其中R1和R2彼此独立地是氢或具有1-10个碳原子的烷基，R3是具有1-10个碳原子的烷基的式II的醚的制备方法 并且X是具有1-10个碳原子的键或烃基，包括a）用保护剂保护式II中的伯氨基b）用去质子化剂将步骤a）中获得的被保护的氨基醇去质子化c）烷基化 步骤b）中得到的阴离子与烷基化试剂反应，得到相应的醚，最后d）除去保护基团回到伯氨基并得到式I的醚，其中工艺步骤b）在 最高120℃，工艺步骤c）在最高80℃的温度下进行。

    2-(2,4,5-TRIMETHYLCYCLOHEX-2-EN-1-YL)ACETALDEHYDE AND DERIVATIVES AND THEIR USE AS AROMA CHEMICALS
    15.
    发明申请
    2-(2,4,5-TRIMETHYLCYCLOHEX-2-EN-1-YL)ACETALDEHYDE AND DERIVATIVES AND THEIR USE AS AROMA CHEMICALS 有权

    公开(公告)号：US20220274904A1

    公开(公告)日：2022-09-01

    申请号：US17625167

    申请日：2020-07-08

    Applicant: BASF SE

    Inventor： Melanie WEINGARTEN ,  Wolfgang SIEGEL ,  Silke WEYLAND ,  Ralf PELZER

    IPC: C07C43/162 ,  C07C43/188 ,  C07C43/303 ,  C07C33/14 ,  A61K8/33 ,  A61Q19/10 ,  C11D3/50 ,  C11D3/20 ,  C07C69/145

    Abstract: The present invention relates to 2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde and derivatives thereof, to a process for preparing said compounds, to the use of 2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde or a specific derivative thereof or of mixtures of said compounds or of a stereoisomer thereof or of a mixture of two or more stereoisomers thereof as aroma chemicals; to the use of 2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde or a specific derivative thereof for modifying the scent character of a fragranced composition; to compositions containing 2-(2,4,5-trimethylcyclohex-2-en-1-yl)acetaldehyde or a specific derivative thereof or a mixture of said compounds or a stereoisomer thereof or a mixture of two or more stereoisomers thereof; and to a method of preparing a fragranced composition or for modifying the scent character of a fragranced composition, comprising incorporating 2-(2,4,5-trimethylcyclohex-2-en-1-yl)-acetaldehyde or a specific derivative thereof or a mixture of said compounds or a stereoisomer thereof or a mixture of two or more stereoisomers thereof into said composition.

    PROCESS FOR THE ETHERIFICATION OF AMINO ALCOHOLS
    18.
    发明申请
    PROCESS FOR THE ETHERIFICATION OF AMINO ALCOHOLS 审中-公开
    氨基醇的加成方法

    公开(公告)号：US20160194272A1

    公开(公告)日：2016-07-07

    申请号：US14963948

    申请日：2015-12-09

    Applicant: BASF SE

    Inventor： Melanie WEINGARTEN ,  Wolfgang SIEGEL ,  Michael SIEMER ,  Junmin JI ,  Joseph VALCHO

    IPC: C07C213/06

    CPC classification number: C07C213/06 ,  C07B2200/07 ,  C07C217/08

    Abstract: A process for the preparation of the ether of formula I where R1 and R2 independently from one another are hydrogen or an alkyl group with 1 to 10 C atoms, R3 is an alkyl group with 1 to 10 carbon atoms and X is a bond or a hydrocarbon group with 1 to 10 carbon atoms comprising a) deprotonating the amino alcohol of formula II where R1, R2 and X have the meaning above with a metal as deprotonating agent to give the anion of formula III where R1, R2 and X have the meaning above and b) alkylation of the anion obtained in step a) with an alkylation agent to give the ether of formula I.

    Abstract translation: 制备其中R 1和R 2彼此独立地是氢或具有1至10个C原子的烷基的式I的醚的方法，R 3是具有1至10个碳原子的烷基，X是键或 具有1至10个碳原子的烃基包括a）使式II的氨基醇去质子化，其中R1，R2和X具有上述含义，用金属作为脱质子化剂，得到式III的阴离子，其中R1，R2和X具有含义 b）用烷基化试剂将步骤a）中获得的阴离子烷基化，得到式I的醚。

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