METHOD FOR PRODUCING DEHYDRO ROSE OXIDE
    5.
    发明申请
    METHOD FOR PRODUCING DEHYDRO ROSE OXIDE 有权
    生产脱水氧化镍的方法

    公开(公告)号:US20160096814A1

    公开(公告)日:2016-04-07

    申请号:US14889541

    申请日:2014-05-15

    Applicant: BASF SE

    CPC classification number: C07D309/18 B01J31/0225

    Abstract: The present invention relates to a method for producing dehydro rose oxide by reacting isoprenol and prenal in the presence of at least one sulfonic acid of formula R1—SO3H as catalyst, wherein R1 is selected from phenyl which carries 2 or 3 C1-C4-alkyl substituents, phenyl which carries one C8-C20-alkyl substituent and optionally also 1 or 2 C1-C4-alkyl substituents, and naphthyl which optionally carries 1 or 2 C1-C4-alkyl substituents.

    Abstract translation: 本发明涉及通过在至少一种式R 1 -SO 3 H的磺酸作为催化剂的存在下使异戊二烯醇和衍生物反应来制备脱氢玫瑰氧化物的方法,其中R 1选自携带2或3个C 1 -C 4烷基 取代基,带有一个C 8 -C 20烷基取代基的苯基和任选地还有1或2个C 1 -C 4烷基取代基的苯基,和任选地带有1或2个C 1 -C 4烷基取代基的萘基。

    METHOD FOR PREPARING 1-HYDROXY-2-METHYL-3-PENTANONE

    公开(公告)号:US20200010394A1

    公开(公告)日:2020-01-09

    申请号:US16460327

    申请日:2019-07-02

    Applicant: BASF SE

    Abstract: Method for preparing 1-hydroxy-2-methyl-3-pentanone (I) by reacting formaldehyde with diethyl ketone in a reactor in the presence of water and a basic component at a temperature of 50 to 150° C. and a pressure of 0.2 to 10 MPa abs, in which the basic component used is a trialkylamine from the group comprising trimethylamine, N,N-dimethylethylamine, N,N-diethylmethylamine, triethylamine, N,N-dimethyl-n-propylamine, N-ethyl-N-methyl-n-propylamine, N,N-dimethylisopropylamine, N-ethyl-N-methylisopropylamine, N,N-dimethyl-n-butylamine, N,N-dimethylisobutylamine and N,N-dimethyl-sec-butylamine, and from the reaction mixture obtained, trialkylamine as low boiler and a bottom product comprising 1-hydroxy-2-methyl-3-pentanone (I) as high boiler are separated in a distillation apparatus, wherein the distillation apparatus is operated at a top pressure of 0.2 to 1 MPa abs.

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