Organoleptic compound and composition
    1.
    发明授权
    Organoleptic compound and composition 失效
    感官复合物及组成

    公开(公告)号:US5837671A

    公开(公告)日:1998-11-17

    申请号:US741438

    申请日:1996-10-31

    申请人: Roman Kaiser

    发明人: Roman Kaiser

    CPC分类号: C11B9/0019 C07C69/587

    摘要: Methyl (E)-4,7-octadienoate �(E)-4,7-octadienoic acid methyl ester! (1), as well as odorant and/or flavorant compositions containing compound (1) as an organoleptic active substance and the manufacture of compound (1). ##STR1##

    摘要翻译: (E)-4,7-辛二烯酸甲酯[(E)-4,7-辛二烯酸甲酯](1),以及含有化合物(1)作为感官活性物质的加臭剂和/或调味剂组合物, 化合物(1)。 1

    Process for inhibition of polymerization of (meth)acrylate ester
    4.
    发明授权
    Process for inhibition of polymerization of (meth)acrylate ester 有权
    (甲基)丙烯酸酯的聚合抑制方法

    公开(公告)号:US07241915B2

    公开(公告)日:2007-07-10

    申请号:US10361973

    申请日:2003-02-11

    IPC分类号: C07C67/27 C07C69/533

    CPC分类号: C07C67/62 C07C69/54

    摘要: The present invention provides a process for inhibition of polymerization of a (meth)acrylate ester, which has an extremely higher effect of inhibition of polymerization than in cases where conventional polymerization inhibitors are used. In the process for inhibition of polymerization of a (meth)acrylate ester; an N-oxyl compound and at least one member selected from the group consisting of manganese salt compounds, copper salt compounds, 2,2,6,6-tetramethylpiperidine compounds, and nitroso compounds are used together as polymerization inhibitors, and further an acid is used.

    摘要翻译: 本发明提供了抑制聚合反应的方法,该方法与使用常规的聚合抑制剂的情况相比,具有极高的聚合抑制效果。 在抑制(甲基)丙烯酸酯的聚合过程中, N-氧基化合物和选自锰盐化合物,铜盐化合物,2,2,6,6-四甲基哌啶化合物和亚硝基化合物中的至少一种作为聚合抑制剂,另外酸是 用过的。

    3,3-dioxy-4,4,4-trifluorobutyric acid derivatives
    5.
    发明授权
    3,3-dioxy-4,4,4-trifluorobutyric acid derivatives 失效
    3,3-二氧基-4,4,4-三氟丁酸衍生物

    公开(公告)号:US5739394A

    公开(公告)日:1998-04-14

    申请号:US767581

    申请日:1996-12-16

    申请人: Norbert Lui

    发明人: Norbert Lui

    摘要: The invention relates to novel 3,3-dioxy-4,4,4-trifluorobutyric acid derivatives of the formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent C.sub.1 -C.sub.10 -alkyl, or represent cyclohexyl, or represent optionally substituted C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.14 -arylalkyl, or R.sup.1 and R.sup.2 together represent C.sub.2 -C.sub.4 -alkylene which is optionally mono- or disubstituted by methyl, or optionally substituted ortho-arylene, R.sup.3 represents hydrogen or C.sub.1 -C.sub.10 -alkyl, or represents cycloalkyl, or represents optionally substituted C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.14 -arylalkyl, and X represents hydrogen, fluorine, chlorine or bromine, excluding methyl 4,4,4-trifluoro-3,3-dimethoxybutyrate, 4,4,4-trifluoro-3,3-dimethoxybutyric acid, ethyl 4,4,4-trifluoro-3,3-diethoxybutyrate, ethyl 4,4,4-trifluoro-3,3-ethylenedioxybutyrate and 4,4,4-trifluoro-3,3-ethylenedioxybutyric acid, a process for their preparation and for the preparation of further 3,3-dioxy-4,4,4-trifluorobutyric acid derivatives, as well as novel intermediates and processes for their preparation.

    摘要翻译: 本发明涉及式(I)的新的3,3-二氧基-4,4,4-三氟丁酸衍生物彼此表示C1-C10-烷基或代表环己基,或代表任选取代的C 6 -C 10 - 芳基或 C 7 -C 14 - 芳基烷基或R 1和R 2一起表示任选被甲基或任选取代的邻 - 亚芳基单取代或二取代的C 2 -C 4 - 亚烷基,R 3表示氢或C 1 -C 10 - 烷基,或表示环烷基,或表示 任选取代的C 6 -C 10 - 芳基或C 7 -C 14 - 芳烷基,X代表氢,氟,氯或溴,不包括4,4,4-三氟-3,3-二甲氧基丁酸甲酯,4,4,4-三氟-3 ,3-二甲氧基丁酸,4,4,4-三氟-3,3-二乙氧基丁酸乙酯,4,4,4-三氟-3,3-亚乙二氧基丁酸乙酯和4,4,4-三氟-3,3-亚乙二氧基丁酸 ,其制备方法和制备其它的3,3-二氧基-4,4,4-三氟丁酸衍生物,以及其制备新颖的中间体和方法。

    Method of preparing .alpha.-arylalkanoic esters
    6.
    发明授权
    Method of preparing .alpha.-arylalkanoic esters 失效
    制备α-芳基链烷酸酯的方法

    公开(公告)号:US4745209A

    公开(公告)日:1988-05-17

    申请号:US839213

    申请日:1986-03-13

    CPC分类号: C07C323/00

    摘要: Alpha-arylalkanoic esters are prepared by reacting a trivalent iodine compound represented by the general formula:Ar--I.dbd.Owherein Ar is an aromatic hydrocarbon, group, with a carbonyl compound represented by the general formula ##STR1## wherein Ar.sup.1 is an aromatic hydrocarbon, R is a hydrogen atom or an alkyl group and R.sup.1 is a hydrogen atom or an alkyl group, in the presence of an orthocarboxylic ester.

    摘要翻译: α-芳基链烷酸酯通过使由通式Ar-I = O表示的三价碘化合物(其中Ar是芳香族烃基)与由通式“IMAGE”表示的羰基化合物反应,其中Ar 1是芳族烃 在原始羧酸存在下,R是氢原子或烷基,R 1是氢原子或烷基。

    Process for the preparation of alkylidenecyclopentanone derivatives
    8.
    发明申请
    Process for the preparation of alkylidenecyclopentanone derivatives 失效
    制备亚烷基环戊酮衍生物的方法

    公开(公告)号:US20050187299A1

    公开(公告)日:2005-08-25

    申请号:US11114538

    申请日:2005-04-26

    摘要: The present invention relates to the field of organic synthesis and more particularly to a new process for the preparation of a compound of formula (I), in the form of any one of its isomers or a mixture thereof, wherein, more preferably, G represents a C═O group, R1 represents a butyl group and R2 represents a methyl group. The process of the invention involves an 2-(1-hydroxyalkyl)-cyclopent-2-en-1-one derivative, as starting material, which can be then converted into a compound of formula (I) by a process comprising a thermal rearrangement. The 2-alkylidene-3-oxo-cyclopentylacetate derivative and the 2-(1-hydroxyalkyl)-cyclopent-2-en-1-one derivative are also an object of the invention.

    摘要翻译: 本发明涉及有机合成领域,更具体地说,涉及制备其异构体或其混合物中任一种形式的式(I)化合物的新方法,其中更优选G代表 CO基,R 1表示丁基,R 2表示甲基。 本发明的方法涉及作为起始原料的2-(1-羟基烷基) - 环戊-2-烯-1-酮衍生物,然后可通过包括热重排的方法转化为式(I)的化合物 。 2-亚烷基-3-氧代 - 环戊基乙酸酯衍生物和2-(1-羟基烷基) - 环戊-2-烯-1-酮衍生物也是本发明的目的。

    Preparation of cyclopropane esters
    9.
    发明授权
    Preparation of cyclopropane esters 失效
    制备环丙烷酯

    公开(公告)号:US5731475A

    公开(公告)日:1998-03-24

    申请号:US826650

    申请日:1997-04-04

    摘要: There is disclosed a process for the preparation of a lower alkyl ester of 3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropane carboxylic acid which comprises the steps of (a) reacting a compound of formula: CF.sub.3 --CXCl--CH(OH)--CH.dbd.C(CH.sub.3).sub.2 (I) wherein X is chloro or bromo, with a tri-lower-alkyl orthoacetate containing up to four carbon atoms in each alkyl groups in the presence of at least a catalytic amount of an acid catalyst at an elevated temperature for a sufficient time to obtain a compound of formula: CF.sub.3 --CXCl--CH.dbd.CH--C(CH.sub.3).sub.2 --CH.sub.2 CO.sub.2 R (III) wherein R is an alkyl group containing up to four carbon atoms, and (b) treating said compound of formula (III) with at least one molar equivalent of a base to obtain said alkyl ester of 3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropane carboxylic acid. The products are useful as intermediates for insecticides.

    摘要翻译: 公开了制备3-(2-氯-3,3,3-三氟丙-1-烯-1-基)-2,2-二甲基环丙烷羧酸的低级烷基酯的方法,该方法包括以下步骤: (a)使其中X是氯或溴的式:CF 3 -CClCl-CH(OH)-CH = C(CH 3)2(I)的化合物与含有至多四个碳原子的三低级烷基原乙酸酯反应 每个烷基在至少一种催化量的酸催化剂存在下在升高的温度下持续足够的时间以获得式CF 3 -CClCl-CH = CH-C(CH 3)2 -CH 2 CO 2 R(III)的化合物,其中 R是含有至多4个碳原子的烷基,和(b)用至少一摩尔当量碱处理式(III)化合物,得到所述3-(2-氯-3,3, 3-三氟丙-1-烯-1-基)-2,2-二甲基环丙烷羧酸。 该产品可用作杀虫剂的中间体。

    Preparation of 4-pentenoates
    10.
    发明授权
    Preparation of 4-pentenoates 失效
    4-戊烯酸酯的制备

    公开(公告)号:US4740613A

    公开(公告)日:1988-04-26

    申请号:US024676

    申请日:1987-03-11

    申请人: Rolf Fischer Uwe Vagi

    发明人: Rolf Fischer Uwe Vagi

    CPC分类号: C07C67/03

    摘要: 4-Pentenoates of the formula ##STR1## where R is alkyl of from 1 to 6 carbon atoms, are prepared by a process in which 5-methylbutyrolactone of the formula ##STR2## is reacted with an alcohol of the formulaR--O--H III,where R has the above meaning, at from 150.degree. to 400.degree. C. in the presence of an acidic catalyst.

    摘要翻译: 其中R为1至6个碳原子的烷基的式Ⅰ'的4-戊烯酸酯通过下式的方法制备,其中式Ⅰ的5-甲基丁内酯与式ROH III的醇反应, 其中R具有上述含义,在150℃至400℃下在酸性催化剂存在下进行。