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公开(公告)号:US06500989B1
公开(公告)日:2002-12-31
申请号:US09913877
申请日:2001-12-04
IPC分类号: C07C4500
CPC分类号: C07C45/00 , C07C45/85 , C07C49/647
摘要: A process for the preparation of carvone comprises hydrogenating carvoxime in the presence of a selecively poisoned catalyst. Preferred catalysts include noble metals supported on inorganic materials poisoned with a catalyst modifier. In a preferred embodiment of the process defined herein, the crude carvone reaction product produced in accordance with the process of the invention, is purified by treating the crude carvone product with an organometallic compound M(X)n wherein M is a polyvalent metal, n is the valence of M and X denotes an inorganic or organic atom or group.
摘要翻译: 用于制备香芹酮的方法包括在选择性中毒的催化剂存在下氢化龋齿。 优选的催化剂包括负载在用催化剂改性剂中毒的无机材料上的贵金属。 在本文定义的方法的优选实施方案中,根据本发明方法生产的粗肉酮反应产物通过用有机金属化合物M(X)n处理粗制酮产物来纯化,其中M是多价金属,n 是M的化合价,X表示无机或有机原子或基团。
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公开(公告)号:US08536349B2
公开(公告)日:2013-09-17
申请号:US12669003
申请日:2008-07-14
申请人: Hanamanthsa Shankarsa Bevinakatti , Christopher Paul Newman , Simon Ellwood , Pietro Tundo , Fabio Arico , Martin Schroeder
发明人: Hanamanthsa Shankarsa Bevinakatti , Christopher Paul Newman , Simon Ellwood , Pietro Tundo , Fabio Arico , Martin Schroeder
IPC分类号: C07D309/00
CPC分类号: C07D471/04 , C07D487/04 , C07D495/04
摘要: A process of preparing cyclic ethers is described. The process involves the reaction of at least one organic compound such as a dioi or a polyol which it has at least one pair of hydroxyl groups separated by 4 or 5 carbon atoms, and which is capable of being converted into an ether linkage, with an organic carbonate in the presence of a base. The base is an alkoxy, a carbonate or a hydroxide base or is a mixture of such bases. At least one of the hydroxyl groups of the organic compound is not a tertiary hydroxyl group.
摘要翻译: 描述了制备环醚的方法。 该方法涉及至少一种有机化合物如二氧化物或多元醇的反应,该有机化合物具有至少一对被4或5个碳原子分隔的羟基并能够转化成醚键, 有机碳酸酯存在下进行。 碱是烷氧基,碳酸酯或氢氧化物碱,或是这些碱的混合物。 有机化合物的至少一个羟基不是叔羟基。
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公开(公告)号:US08518236B2
公开(公告)日:2013-08-27
申请号:US11993418
申请日:2006-06-28
IPC分类号: G01N27/327 , G01N27/403
CPC分类号: G01N27/327
摘要: A method for improving the precision of electrochemical measurements made using an electrochemical cell is provided. The method comprises preconditioning a working electrode of the cell by (i) baking the working electrode; and/or (ii) incubating the working electrode; and/or (iii) applying a preconditioning potential across the cell; and/or (iv) treating the working electrode with a UV laser.
摘要翻译: 提供了使用电化学电池提高电化学测量精度的方法。 该方法包括:(i)烘烤工作电极,预处理电池的工作电极; 和/或(ii)孵育所述工作电极; 和/或(iii)在细胞上施加预处理潜力; 和/或(iv)用UV激光对工作电极进行处理。
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公开(公告)号:US06900359B2
公开(公告)日:2005-05-31
申请号:US10344531
申请日:2001-08-10
IPC分类号: C07B61/00 , C07C1/20 , C07C1/24 , C07C13/19 , C07C13/20 , C07C29/04 , C07C29/132 , C07C29/20 , C07C35/08 , C07C41/18 , C07C41/20 , C07C43/184 , C07C45/45 , C07C45/46 , C07C45/82 , C07C49/84 , C11B9/00 , C07L35/08
CPC分类号: C07C29/04 , C07C29/20 , C07C35/08 , C07C45/46 , C07C45/82 , C07C49/84 , C07C2601/14 , C11B9/0034
摘要: A method of making a 3-alkylcycloalkanol of formula 2: where R1 represents a methyl or ethyl group, R2 represents hydrogen, R3 represents an ethyl, propyl, butyl, isobutyl or isoamyl group, R4 represents hydrogen and R5 represents hydrogen, or a methyl, ethyl, propyl, isobutyl or isoamyl group comprises the following steps: (1) carrying out an electrophilic substitution reaction of an alkyl group or precursor thereof, on an ortho-substituted alkylbenzene compound of formula 3: where R6 represents hydrogen, or a methyl or ethyl group; (2) hydrogenating the reaction product of step (1); (3) performing an elimination reaction on one or more reaction products of step (2) to produce one or more alkene products; and (4) hydrating the one or more alkene products of step (3) to provide a 3-alkylcycloalkanol of formula 2. The electrophilic substitution reaction of step (1) may be a Friedel-Crafts acylation, e.g. using an isopropyl ketone precursor, or a Friedel-Crafts alkylation, e.g. using an isobutyl group. The 3-alkylcycloalkanols, especially 3-(2-methylpropyl)-1-methylcyclohexanol, are useful fragrance materials and find use in perfumes and perfumed products.
摘要翻译: 制备式2的3-烷基环烷醇的方法:其中R 1表示甲基或乙基,R 2表示氢,R 3, 代表乙基,丙基,丁基,异丁基或异戊基,R 4表示氢,R 5表示氢,或甲基,乙基,丙基,异丁基或异戊基包括 以下步骤:(1)在式3的邻位取代的烷基苯化合物上进行烷基或其前体的亲电取代反应:其中R 6表示氢,或甲基或乙基 组; (2)氢化步骤(1)的反应产物; (3)对步骤(2)的一种或多种反应产物进行消除反应以产生一种或多种烯烃产物; (4)将步骤(3)的一种或多种烯烃产物水合以提供式2的3-烷基环烷醇。步骤(1)的亲电取代反应可以是Friedel-Crafts酰化反应,例如。 使用异丙基酮前体,或Friedel-Crafts烷基化,例如。 使用异丁基。 3-烷基环烷醇,特别是3-(2-甲基丙基)-1-甲基环己醇是有用的香料,可用于香料和香料产品中。
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公开(公告)号:US20100274030A1
公开(公告)日:2010-10-28
申请号:US12669003
申请日:2008-07-14
申请人: Hanamanthsa Shankarsa Bevinakatti , Christopher Paul Newman , Simon Ellwood , Pietro Tundo , Fabio Arico , Martin Schroeder
发明人: Hanamanthsa Shankarsa Bevinakatti , Christopher Paul Newman , Simon Ellwood , Pietro Tundo , Fabio Arico , Martin Schroeder
IPC分类号: C07D493/04 , C07D307/77 , C07D307/08 , C07D307/28 , C07D309/04 , C07D307/79 , C07D325/00 , C07D321/00
CPC分类号: C07D471/04 , C07D487/04 , C07D495/04
摘要: A process of preparing cyclic ethers is described. The process involves the reaction of at least one organic compound such as a dioi or a polyol which it has at least one pair of hydroxyl groups separated by 4 or 5 carbon atoms, and which is capable of being converted into an ether linkage, with an organic carbonate in the presence of a base. The base is an alkoxy, a carbonate or a hydroxide base or is a mixture of such bases. At least one of the hydroxyl groups of the organic compound is not a tertiary hydroxyl group.
摘要翻译: 描述了制备环醚的方法。 该方法涉及至少一种有机化合物如二氧化物或多元醇的反应,该有机化合物具有至少一对被4或5个碳原子分隔的羟基并能够转化成醚键, 有机碳酸酯存在下进行。 碱是烷氧基,碳酸酯或氢氧化物碱,或是这些碱的混合物。 有机化合物的至少一个羟基不是叔羟基。
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公开(公告)号:US20100140108A1
公开(公告)日:2010-06-10
申请号:US11993418
申请日:2006-06-28
CPC分类号: G01N27/327
摘要: A method for improving the precision of electrochemical measurements made using an electrochemical cell is provided. The method comprises preconditioning a working electrode of the cell by (i) baking the working electrode; and/or (ii) incubating the working electrode; and/or (iii) applying a preconditioning potential across the cell; and/or (iv) treating the working electrode with a UV laser.
摘要翻译: 提供了使用电化学电池提高电化学测量精度的方法。 该方法包括:(i)烘烤工作电极,预处理电池的工作电极; 和/或(ii)孵育所述工作电极; 和/或(iii)在细胞上施加预处理潜力; 和/或(iv)用UV激光对工作电极进行处理。
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公开(公告)号:US6114548A
公开(公告)日:2000-09-05
申请号:US8768
申请日:1998-01-19
IPC分类号: B01J31/02 , C07B61/00 , C07D309/18 , C07D309/20 , C07D309/00
CPC分类号: C07D309/18 , C07D309/20
摘要: The invention concerns Diels-Alder reactions between non-activated aldehydes RCHO in which R is a C1-C10 aliphatic group or phenyl group, which is unsubstituted or substituted with one or more C1-C5 alkyl groups or one other functional group, with simple aliphatic dienes R.sub.1 CH.dbd.CR.sub.2 --CR.sub.3 .dbd.CHR.sub.4 in which R.sub.1 -R.sub.4 are H or C1-C5 alkyl groups using as a catalyst a perfluorinated organic sulphonic acid or a Bronsted acid derivative thereof. The reaction leads to dihydropyrans of the structure below in which R1-R4 have the meaning indicated above.The preferred perfluorinated organic sulfonic acids are perfluorooctanesulphonic acid, triflic acid, Nafion or a Bronsted acid derivative of triflic acid. ##STR1## The preferred aldehydes are those wherein R is a C2-C6 aliphatic group or a phenyl group which is unsubstituted or mono-substituted with C1-C3 alkyl or with 4-Cl, 4-nitro or 3-methoxy. The preferred dienes are those wherein the groups R.sub.1 -R.sub.4 are H or methyl.
摘要翻译: 本发明涉及非活化醛RCHO中的Diels-Alder反应,其中R是未被取代或被一个或多个C 1 -C 5烷基或一个其它官能团取代的C 1 -C 10脂族基或苯基, 二烯R1CH = CR2-CR3 = CHR4,其中R 1 -R 4为H或C 1 -C 5烷基,使用全氟化有机磺酸或其Br + E,uml + e + nsted酸衍生物作为催化剂。 该反应得到以下结构的二氢吡喃,其中R1-R4具有上述含义。 优选的全氟化有机磺酸是全氟辛基磺酸,三氟甲磺酸,Nafion或三氟乙酸的Br + E,嗯,o + EE nsted酸衍生物。 优选的醛是其中R是C 2 -C 6脂族基团或未被取代或被C 1 -C 3烷基或与4-Cl,4-硝基或3-甲氧基单取代的苯基的那些。 优选的二烯是其中基团R 1 -R 4是H或甲基的那些。
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公开(公告)号:US08618293B2
公开(公告)日:2013-12-31
申请号:US12663821
申请日:2008-06-17
CPC分类号: C12Q1/004 , C07F15/0026 , C07F15/0053
摘要: The present invention relates to ruthenium and osmium complexes of Formula [M(A)w(B)x(C)y]m(Xz)n, per se and the use of ruthenium and osmium complexes of Formula I as redox mediators in electrochemical biosensors.
摘要翻译: 本发明涉及式[M(A)w(B)x(C)y] m(Xz)n本身的钌和锇络合物以及式I的钌和锇络合物作为氧化还原介体在电化学 生物传感器
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公开(公告)号:US08592617B2
公开(公告)日:2013-11-26
申请号:US12158371
申请日:2006-12-21
IPC分类号: C07C39/44
CPC分类号: C07F15/0053 , C09B57/10 , C12Q1/004
摘要: The present application is generally directed to ruthenium or osmium containing complexes and their use as redox mediators in electrochemical biosensors.
摘要翻译: 本申请一般涉及含钌或锇的络合物及其在电化学生物传感器中作为氧化还原介体的用途。
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公开(公告)号:US20110262950A1
公开(公告)日:2011-10-27
申请号:US12663821
申请日:2008-06-17
CPC分类号: C12Q1/004 , C07F15/0026 , C07F15/0053
摘要: The present invention relates to ruthenium and osmium complexes of Formula [M(A)w(B)xCy]m(Xz)n, per se and the use of ruthenium and osmium complexes of Formula I as redox mediators in electrochemical biosensors.
摘要翻译: 本发明涉及式[M(A)w(B)xCy] m(Xz)n本身的钌和锇络合物以及在电化学生物传感器中使用式I的钌和锇络合物作为氧化还原介体。
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