METHOD FOR THE DECARBOXYLATIVE HYDROFORMYLATION OF ALPHA, BETA- UNSATURATED CARBOXYLIC ACIDS
    4.
    发明申请
    METHOD FOR THE DECARBOXYLATIVE HYDROFORMYLATION OF ALPHA, BETA- UNSATURATED CARBOXYLIC ACIDS 审中-公开
    阿尔法,非饱和羧酸的脱羧氢化方法

    公开(公告)号:US20110028746A1

    公开(公告)日:2011-02-03

    申请号:US12934743

    申请日:2009-03-25

    摘要: The present invention relates to a process for preparing aldehydes by reacting an α,β-unsaturated carboxylic acid or a salt thereof with carbon monoxide and hydrogen in the presence of a catalyst comprising at least one complex of a metal of transition group VIII of the Periodic Table of the Elements with at least one compound of the formula (I), where Pn is pnicogen; W is a divalent bridging group having from 1 to 8 bridge atoms between the flanking bonds; R1 is a functional group capable of forming at least one intermolecular, noncovalent bond with the —X(═O)OH group of the compound of the formula (I); R2, R3 are each in each case optionally substituted alkyl, cycloalkyl, heterocycloalkyl, aryl or hetaryl or together with the pnicogen atom and together with the groups Y2 and Y3 if present form an optionally fused and optionally substituted 5- to 8-membered heterocycle; a, b and c are each 0 or 1; and Y1,2,3 are each, independently of one another, O, S, NRa or SiRbRc, where Ra,b,c are each H or in each case optionally substituted alkyl, cycloalkyl, heterocycloalkyl, aryl or hetaryl; and the use of the above-described catalyst for the decarboxylative hydroformylation of α,β-unsaturated carboxylic acids.

    摘要翻译: 本发明涉及一种通过使α-,β-不饱和羧酸或其盐与一氧化碳和氢气在催化剂存在下反应来制备醛的方法,所述催化剂包含至少一种式 具有式(I)的至少一种化合物的元素周期表,其中Pn是pnicogen; W是在侧翼键之间具有1至8个桥原子的二价桥连基团; R1是能够与式(I)化合物的-X(= O)OH基团形成至少一个分子间,非共价键的官能团; R2,R3各自为任选取代的烷基,环烷基,杂环烷基,芳基或杂芳基,或与pnicogen原子一起并与Y2和Y3基团一起形成任选稠合的和任选取代的5-至8-元杂环; a,b和c各自为0或1; 其中R a,b,c各自为H,或者在每种情况下均为任选取代的烷基,环烷基,杂环烷基,芳基或杂芳基;其中R 1和R 2各自独立地为O,S,NR a或SiR b R c。 以及使用上述催化剂进行α,β-不饱和羧酸的脱羧加氢甲酰化反应。

    Citral derivatives
    5.
    发明授权
    Citral derivatives 失效
    柠檬醛衍生物

    公开(公告)号:US07704941B2

    公开(公告)日:2010-04-27

    申请号:US11861610

    申请日:2007-09-26

    申请人: Luca Turin

    发明人: Luca Turin

    IPC分类号: A61K8/40 C07C255/46

    摘要: Improved citral derivatives, and fragrances and flavorings including the derivatives, that have a longer useful shelf life than citral and/or fragrances and flavorings including citral, are disclosed. In particular, the derivatives maintain the fragrance characteristics of citral, while lowering the allergic properties, and lemony flavors and fragrances with a longer shelf-life than citral, are disclosed. Also disclosed are methods of making the derivatives, and articles of manufacture including the derivatives. In one embodiment, the derivatives are prepared by replacing one or more double bonds in citral with a cyclopropyl group, which can be unsubstituted, or substituted with one or two lower alkyl, preferably methyl groups. The alkyl groups can optionally be substituted, for example, with electron donating groups, electron with drawing groups, groups which increase the hydrophilicity or hydrophobocity, and the like. In another embodiment, the derivatives are prepared by replacing the aldehyde group in citral with a nitrile, methyl ether or acetal group. The acetal groups can provide the compounds with a long lasting flavor or fragrance, where the acetals slowly hydrolyze to provide the aldehyde group in citral. In some embodiments, both the aldehyde and at least one of the double bond functional groups are both derivatized as described herein. Examples of suitable articles of manufacture include candles, air fresheners, perfumes, disinfectant compositions, hypochlorite (bleach) compositions, beverages such as beer and soda, denture cleanser tablets and flavored orally-delivered products such as lozenges, candies, and the like.

    摘要翻译: 公开了改进的柠檬醛衍生物,以及包括衍生物的香料和调味剂,其具有比柠檬醛和/或香料和调味剂(包括柠檬醛)更长的有用的保质期。 特别地,衍生物保持柠檬醛的香味特性,同时降低过敏性质,并且具有比柠檬醛更长的保质期的柠檬香精和香料。 还公开了制备衍生物的方法和包括衍生物的制品。 在一个实施方案中,衍生物通过用环丙基取代柠檬醛中的一个或多个双键来制备,所述环丙基可以是未取代的,或被一个或两个低级烷基,优选甲基取代。 烷基可以任选地被取代,例如具有给电子基团,具有拉伸基团的电子,增加亲水性或疏水性的基团等。 在另一个实施方案中,通过用腈,甲醚或缩醛基代替柠檬醛中的醛基来制备衍生物。 缩醛基团可为化合物提供持久的风味或香味,其中缩醛缓慢水解以在柠檬醛中提供醛基。 在一些实施方案中,醛和至少一个双键官能团都如本文所述被衍生化。 合适的制造方法的实例包括蜡烛,空气清新剂,香料,消毒剂组合物,次氯酸盐(漂白剂)组合物,饮料如啤酒和苏打,义齿清洁剂片剂和调味的口服递送产品如锭剂,糖果等。

    USE OF NEW CAMPHOLENIC DERIVATIVES AS FRAGRANT INGREDIENTS IN PERFUMERY AND FLAVOURING
    6.
    发明申请
    USE OF NEW CAMPHOLENIC DERIVATIVES AS FRAGRANT INGREDIENTS IN PERFUMERY AND FLAVOURING 审中-公开
    新鲜气溶胶衍生物作为富含成分的成分和挥发性成分使用

    公开(公告)号:US20080138482A1

    公开(公告)日:2008-06-12

    申请号:US11953157

    申请日:2007-12-10

    摘要: This invention relates to campholenic derivatives of general formula (I) Wherein R1, R2, R3, R4 and R5 represent, each independently, a hydrogen atom or a linear or branched C1-C5 alkyl or C2-C5 alkenyl group, Y represents a CN, a C(O)R6 or a CR6(ORα) (ORβ) group, wherein R6 represents a hydrogen atom or a linear or branched C1-C5 alkyl or C2-C5 alkenyl group, and Rα and Rβ represent simultaneously a linear or branched C1, C2, C3, C4 or C5 alkyl or C2, C3, C4 or C5 alkenyl group and can form together a cycle, the 5-membered ring is saturated or has a double bond between C3′ and C4′ in formula (I), and the side chain, optionally, has a double bond between C1 and C2 and/or between C3 and C4, provided that the derivative is not 3-methyl-6-(2,2,3-trimethyl-cyclopent-3-enyl)-hex-4-enal; and their use as fragrant or flavouring agent.

    摘要翻译: 本发明涉及通式(I)的抗坏血酸衍生物,其中R1,R2,R3,R4和R5各自独立地表示氢原子或直链或支链C 1 -C 5 烷基或C 2 -C 5烯基,Y表示CN,C(O)R 6或CR 其中R 6表示氢原子或直链或者直链或支链的直链或支链 支链C 1 -C 5烷基或C 2 -C 5 - 烯基,R aα R 3和R 3同时代表直链或支链C 1,C 2,C 3, C 4或C 5烷基或C 2〜C 3,C 3,C 4, 或C 5链烯基,并且可以一起形成一个周期,所述五元环是饱和的或在式(I)中的C 3'和C 4'之间具有双键,并且任选地, 在C1和C2之间和/或C3和C4之间具有双键,条件是衍生物 不存在3-甲基-6-(2,2,3-三甲基 - 环戊-3-烯基) - 己-4-烯醛; 并将其用作香料或调味剂。