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    Spirocyclic Ketols And Their Use
    4.
    发明申请
    Spirocyclic Ketols And Their Use 失效
    螺环酮及其用途

    公开(公告)号：US20080200365A1

    公开(公告)日：2008-08-21

    申请号：US11718856

    申请日：2005-11-07

    Applicant: Philip Kraft

    Inventor： Philip Kraft

    IPC: A61K8/35 ,  C07C49/12 ,  A61Q13/00

    CPC classification number: C07C49/513

    Abstract: Described are spirocyclic ketols of formula (I) wherein n and A have the same meaning as given in the description. Also disclosed is a method for their production and flavour and fragrance compositions containing them.

    Abstract translation: 描述的式（I）的螺环酮，其中n和A具有与说明书中给出的相同的含义。 还公开了它们的生产方法和含有它们的风味和香料组合物。

    Method for the production of trioxime derivatives
    5.
    发明授权
    Method for the production of trioxime derivatives 失效
    生产三肟衍生物的方法

    公开(公告)号：US06906223B2

    公开(公告)日：2005-06-14

    申请号：US10332046

    申请日：2001-07-04

    Applicant: Andreas Kramer ,  Matthias Kiefer ,  Michael Henningsen ,  Wolfgang Siegel ,  Jochen Schröder

    Inventor： Andreas Kramer ,  Matthias Kiefer ,  Michael Henningsen ,  Wolfgang Siegel ,  Jochen Schröder

    IPC: C07B61/00 ,  C07C249/06 ,  C07C249/08 ,  C07C251/40 ,  C07C251/58 ,  C07C49/12 ,  C07C251/60

    CPC classification number: C07C249/06 ,  C07C249/08 ,  C07C251/40

    Abstract: The present invention relates to a process for preparing trioxime derivatives of the formula I in which the substituents R1 and R2 are identical or different and each is cyano, alkyl, haloalkyl or cycloalkyl, and R3 and R4 are identical or different and each is alkyl, haloalkyl, cycloalkyl, alkylcarbonyl or arylalkyl, by the following reaction steps in water without isolation of the intermediates: A) nitrosation of 1,3-diketones of the formula II  to give monooximes of the formula III, B) oximation of III with hydroxylamine derivatives of the formula IV H2N—OR3′  IV  in which R3′ is hydrogen or a group R3 to give bisoximes of the formula V, C) alkylation of V with alkylating agents or acylation of V with acylating agents to give compounds of the formula VI and D) subsequent oximation of VI with hydroxylamine to give compounds of the formula I.

    Abstract translation: 本发明涉及一种制备式I的三肟衍生物的方法，其中取代基R 1和R 2是相同或不同的，并且各自为氰基，烷基，卤代烷基 或环烷基，R 3和R 4相同或不同，并且各自为烷基，卤代烷基，环烷基，烷基羰基或芳烷基，通过以下反应步骤在水中不分离 中间体：A）式II的1,3-二酮的亚硝化，得到式III的单肟，B）III式与Ⅳ的羟胺衍生物的肟化，其中式Ⅳ的线性公式描述=“在线式 “end =”lead“？> H 2 N-OR 3”在线公式描述=“在线公式”end =“tail” 其中R 3'是氢或基团R 3'，得到式V的双肟，C）用烷基化剂烷基化V或用酰化酰化V 试剂得到式VI化合物和D）随后的肟基 VI与羟胺的离子，得到式I的化合物。

    Process for preparing-diketone compound and process for preparing metal complex thereof
    6.
    发明申请
    Process for preparing-diketone compound and process for preparing metal complex thereof 失效
    制备二酮化合物的方法及其制备金属络合物的方法

    公开(公告)号：US20050119466A1

    公开(公告)日：2005-06-02

    申请号：US10500963

    申请日：2002-12-18

    Applicant: Makoto Saito ,  Takashi Ueda ,  Takashi Tani

    Inventor： Makoto Saito ,  Takashi Ueda ,  Takashi Tani

    IPC: C07C45/45 ,  C07C45/77 ,  C07C49/12 ,  C07C49/92 ,  C07F5/00

    CPC classification number: C07C49/92 ,  C07C45/455 ,  C07C45/77 ,  C07C49/12

    Abstract: Disclosed is a process for preparing 2,2,6,6-tetramethyl-3,5-heptanedione, comprising reacting a pivalic acid alkyl ester with pinacolone in the presence of an alkali metal alkoxide catalyst using a pivalic acid alkyl ester as a solvent but using no other solvent or reacting them in an amide type or urea type solvent in the presence of an alkali metal alkoxide catalyst. Also disclosed is a process for preparing a 2,2,6,6-tetramethyl-3,5-heptanesione metal complex using the 2,2,6,6-tetramethyl-3,5-heptanedione obtained by the above process. The process for preparing 2,2,6,6-tetramethyl-3,5-heptanedione is an industrially advantageous process in which an alkali metal alkoxide that is easy to handle can be used-as a catalyst for preparing 2,2,6,6-tetramethyl-3,5-heptanedione from a pivalic acid alkyl ester and pinacolone.

    Abstract translation: 公开了一种制备2,2,6,6-四甲基-3,5-庚二酮的方法，包括在碱金属醇盐催化剂存在下，使用新戊酸烷基酯作为溶剂使新戊酸烷基酯与频那酮酮反应，但 不使用其它溶剂或在酰胺型或尿素型溶剂中，在碱金属醇盐催化剂的存在下反应。 还公开了使用通过上述方法获得的2,2,6,6-四甲基-3,5-庚二酮制备2,2,6,6-四甲基-3,5-庚内酯金属络合物的方法。 制备2,2,6,6-四甲基-3,5-庚二酮的方法是工业上有利的方法，其中可以使用易于处理的碱金属醇盐 - 作为制备2,2,6,6-四甲基-3,5-庚二酮的催化剂， 由新戊酸烷基酯和频哪醇酮制备6-四甲基-3,5-庚二酮。

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