PRO-FRAGRANCE COMPOUNDS
    3.
    发明申请
    PRO-FRAGRANCE COMPOUNDS 有权
    PRO-FRAGRANCE化合物

    公开(公告)号:US20160122271A1

    公开(公告)日:2016-05-05

    申请号:US14889858

    申请日:2014-05-05

    申请人: FIRMENICH SA

    摘要: A compound is provided of Formula (I), wherein R1 represents a C3 to C20 hydrocarbon group derived from an alcohol of formula R1OH, from a formate of formula R1OCH═O, or a cinnamyl aldehyde of Formula (II) wherein a compound of Formula I is capable of releasing a compound, when oxidized, selected from the group consisting of a fragrant alcohol of formula R1OH, a fragrant formate ester of formula R1OCH=0 and aryl aldehyde of Formula (III), wherein R2 is, independently, hydrogen atom, hydroxyl group, optionally substituted C1-C6 alkyl group, C1-C6 alkoxy group, or -0(C=0)CH(CH3)2 wherein any two of R2 may form an optionally substituted 5 or 6 membered ring. The compounds are useful for example as a precursor for the prolonged delivery or release of fragrant compounds such as fragrant alcohols, fragrant aldehydes or fragrant formates.

    摘要翻译: 由式(I)表示的化合物,其中R1表示衍生自式R1OH的醇,式R1OCH = O的甲酸酯或式(Ⅱ)的肉桂醛的C3至C20烃基,其中式 当氧化时,我能够释放化合物,其选自式为R1OH的芳香醇,式R1OCH = 0的芳香甲酸酯和式(III)的芳基醛,其中R2独立地为氢原子 ,羟基,任选取代的C 1 -C 6烷基,C 1 -C 6烷氧基或-O(C = O)CH(CH 3)2,其中任何两个R 2可以形成任选取代的5或6元环。 该化合物可用作例如芳香化合物如芳香醇,芳香醛或芳香甲酸酯延长递送或释放的前体。

    Process for preparing isopropanol and 2-butanol from the corresponding alkanes
    9.
    发明授权
    Process for preparing isopropanol and 2-butanol from the corresponding alkanes 失效
    从相应的烷烃制备异丙醇和2-丁醇的方法

    公开(公告)号:US07750194B2

    公开(公告)日:2010-07-06

    申请号:US12374351

    申请日:2007-07-16

    IPC分类号: C07C29/09

    摘要: A process for preparing alkanols (I) selected from the group consisting of isopropanol and 2-butanol from the corresponding alkanes (II) selected from the group consisting of propane and n-butane, comprising the steps of: A) providing a starting gas stream a comprising the alkane (II); B) feeding the starting gas stream a comprising the alkane (II) into a dehydrogenation zone and subjecting the alkane (II) to a dehydrogenation to the alkene (III) to obtain a product gas stream b comprising the alkene (III) and unconverted alkane (II), with or without high boilers, steam, hydrogen and low boilers; C) at least compressing product gas stream b, optionally separating product gas stream b into an aqueous phase c1, a phase c2 comprising the alkene (III) and the alkane (II), with or without high boilers, and a gas phase c3 comprising hydrogen and low boilers; D) reacting product gas stream b or the phase c2 comprising alkene (III) and alkane (II) with an organic acid (IV) in an esterification zone to obtain a product mixture d comprising the corresponding alkyl ester (V) of the organic acid and the unconverted alkane (II); E) removing from product mixture d a gas stream e1 which comprises an alkane (II) and is recycled into the dehydrogenation zone if appropriate, and a product mixture e2 comprising the alkyl ester; F) reacting the product mixture e2 comprising the alkyl ester with water in an ester hydrolysis zone to give a product mixture f comprising the alkanol (I) and the organic acid (IV); G) removing the alkanol (I) and the organic acid (IV) from product mixture f and, if appropriate, recycling the organic acid into the esterification zone.

    摘要翻译: 从选自丙烷和正丁烷的相应的烷烃(II)制备选自异丙醇和2-丁醇的链烷醇(I)的方法,包括以下步骤:A)提供起始气流 a包含烷烃(II); B)将包含烷烃(II)的起始气体流(a)进料到脱氢区中并使烷烃(II)脱氢至烯烃(III),得到包含烯烃(III)和未转化烷烃的产物气流b (II),有或没有高锅炉,蒸汽,氢气和低锅炉; C)至少压缩产物气流b,任选地将产物气流b分离成水相c1,包含烯烃(III)和烷烃(II)的阶段c2,具有或不具有高锅炉,以及气相c3,其包含 氢和低锅炉; D)使产物气流b或包含烯烃(III)和烷烃(II)的相c与酯化区中的有机酸(IV)反应,得到包含相应的有机酸烷基酯(V)的产物混合物d 和未转化的烷烃(II); E)从产物混合物d除去包含烷烃(II)的气流e1,并且如果合适的话再循环到脱氢区中,以及包含烷基酯的产物混合物e2; F)在酯水解区中使包含烷基酯的产物混合物e2与水反应,得到包含链烷醇(I)和有机酸(IV)的产物混合物f; G)从产物混合物f中除去链烷醇(I)和有机酸(IV),如果合适,将有机酸再循环到酯化区。