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235 条记录 (耗时 0.016 秒)

    Keto-diesters production
    32.
    发明授权
    Keto-diesters production 失效
    酮二酯生产

    公开(公告)号：US4800231A

    公开(公告)日：1989-01-24

    申请号：US171999

    申请日：1988-03-23

    申请人： Pen C. Wang

    发明人： Pen C. Wang

    IPC分类号： C07C67/00 ,  B01J31/02 ,  C07B61/00 ,  C07C67/313 ,  C07C69/716

    CPC分类号： C07C67/313

    摘要： Novel keto-diesters are produced by a 2:1 condensation of lower alkyl esters of .alpha.,.beta.-ethylenically unsaturated carboxylic acids and aldehydes having two hydrogen atoms as portions of a formyl group, in the presence of a thiazolium salt as catalyst and a tertiary amine.

    Preparation of alkyl N-maleylphenylalanate
    33.
    发明授权
    Preparation of alkyl N-maleylphenylalanate 失效
    N-马来酰基苯基丙氨酸烷基酯的制备

    公开(公告)号：US4709075A

    公开(公告)日：1987-11-24

    申请号：US805618

    申请日：1985-12-06

    申请人： Reinhold Keller

    发明人： Reinhold Keller

    IPC分类号： C07C231/00 ,  C07C67/00 ,  C07C231/02 ,  C07C233/49 ,  C07K5/075 ,  C07C67/313

    CPC分类号： C07K5/0613

    摘要： Alkyl N-maleylphenylalanate is prepared by reacting the starting material alkyl L-phenylalanate and maleic anhydride in aqueous solution at a pH of at most 7.5. The reaction products can be isomerized with dipolar aprotic solvents into the corresponding fumaric acid monoamides and thus can be used as an intermediate in the preparation of alkyl .alpha.-L-aspartyl-L-phenylalanate.

    摘要翻译： 烷基N-马来酰基苯基丙氨酸烷基酯通过使原料烷基L-苯基丙氨酸酯和马来酸酐在至多7.5的pH的水溶液中反应来制备。 反应产物可以用偶极非质子溶剂异构化成相应的富马酸单酰胺，因此可用作制备α-L-天冬氨酰基-L-苯丙氨酸烷基酯的中间体。

    Fluorosulfonate containing polyfluorocarbonyl compounds
    34.
    发明授权
    Fluorosulfonate containing polyfluorocarbonyl compounds 失效
    含氟磺酸盐的多氟羰基化合物

    公开(公告)号：US4603017A

    公开(公告)日：1986-07-29

    申请号：US720163

    申请日：1985-04-05

    申请人： Hans Millauer ,  Gunter Siegemund ,  Werner Schwertfeger

    发明人： Hans Millauer ,  Gunter Siegemund ,  Werner Schwertfeger

    IPC分类号： C07C69/708 ,  C07C45/54 ,  C07C49/167 ,  C07C51/00 ,  C07C51/373 ,  C07C53/50 ,  C07C59/21 ,  C07C59/347 ,  C07C59/58 ,  C07C59/88 ,  C07C67/00 ,  C07C67/313 ,  C07C69/716 ,  C07C301/00 ,  C07C303/00 ,  C07C305/00 ,  C07C305/26 ,  C25B3/00 ,  C25B3/02 ,  C07C141/00

    CPC分类号： C07C45/54 ,  C07C305/26 ,  C07C49/167 ,  C07C51/00 ,  C07C59/21

    摘要： Perfluorocarbonyl compounds of the formulae IV and V ##STR1## in which R.sub.f denotes perfluoroalkyl, R'.sub.f denotes perfluoroalkylene, R denotes F, Cl, perfluoroalkyl or --OR"' (R"'=alkyl, aryl or aralkyl) and n denotes a number from 0 to 10, are prepared, starting from compounds of the formula I ##STR2## in which R.sub.f, R'.sub.f and n have the same meaning as in the formulae IV and V and R" is F, Cl or perfluoroalkyl, by electrolysis in an electrolyte consisting of fluorosulfonic acid/alkali metal fluorosulfonate and, if necessary, esterification with R"'OH, and decomposition ##STR3## in the presence of catalytic amounts of alkali metal fluorides and/or aprotic N-bases. Most of the compounds IV and V are new; the latter are, above all, valuable heat transfer fluids, lubricating oils or intermediates for the preparation of other F-organic compounds.

    摘要翻译： （IV）的全氟羰基化合物其中Rf表示全氟烷基，R'f表示全氟亚烷基，R表示F，Cl，全氟烷基或-OR“（R”'） =烷基，芳基或芳烷基），n表示0至10的数，从其中R f，R'f和n与式（I）中相同含义的式I的化合物 IV和V和R“是F，Cl或全氟烷基，通过在由氟磺酸/碱金属氟代磺酸盐组成的电解质中电解并在需要时与R”OH进行酯化，并在催化剂存在下分解“IMAGE” 碱金属氟化物和/或非质子N-碱的量。 大多数化合物IV和V是新的; 后者首先是有价值的传热流体，润滑油或用于制备其它F-有机化合物的中间体。

    Process for the preparation of alkyl 4-methyl-3-formyl-penten-1-oates
    37.
    发明授权
    Process for the preparation of alkyl 4-methyl-3-formyl-penten-1-oates 失效
    制备4-甲基-3-甲酰基戊烯-1-酸烷基酯的方法

    公开(公告)号：US4487957A

    公开(公告)日：1984-12-11

    申请号：US487283

    申请日：1983-04-21

    申请人： Jacques Martel ,  Jean Tessier ,  Jean-Pierre Demoute

    发明人： Jacques Martel ,  Jean Tessier ,  Jean-Pierre Demoute

    IPC分类号： C07C67/313 ,  B01J31/02 ,  B01J31/12 ,  C07B61/00 ,  C07C51/373 ,  C07C59/74 ,  C07C69/73 ,  C07C69/738

    CPC分类号： C07C59/74 ,  C07C51/373

    摘要： A novel alkyl 4-methyl-3-formyl-penten-1-oate of the formula ##STR1## wherein R is alkyl of 1 to 5 carbon atoms and the dotted lines represent a double bond in the 3,4 or 4,5-position and their preparation and novel intermediates therefore and a novel process for the preparation of 4-methyl-3-formyl-pent-3-en-1-oic acid which is an intermediate for the preparation of compounds of the formula ##STR2## wherein R.sub.3 is selected from the group consisting of hydrogen and the residue of an alcohol R.sub.3 OH by the process of European Patent Application Ser. No. 0023849 published Feb. 11, 1981, which are used to prepare very active insecticidal esters.

    摘要翻译： 一种新的式（Ⅰ）的4-甲基-3-甲酰戊烯-1-酸酯，其中R是1至5个碳原子的烷基，虚线代表3,4或4,5中的双键 - 位及其制备方法和新型中间体，因此制备4-甲基-3-甲酰基 - 戊-3-烯-1-酸的新方法是制备式[IMAGE]化合物的中间体， （α），其中R3选自氢和醇R3OH的残基，通过欧洲专利申请序列号的方法。 1981年2月11日公开的No. 0023849，其用于制备非常活泼的杀虫酯。

    PLASTICIZERS FOR CELLULOSE ESTERS
    40.
    发明公开
    PLASTICIZERS FOR CELLULOSE ESTERS 审中-公开

    公开(公告)号：US20230312872A1

    公开(公告)日：2023-10-05

    申请号：US18017328

    申请日：2021-07-06

    申请人： 3M INNOVATIVE PROPERTIES COMPANY

    发明人： Kevin M. Lewandowski ,  Dean M. Moren

    IPC分类号： C08K5/11 ,  C07C67/313

    CPC分类号： C08K5/11 ,  C07C67/313

    摘要： A plasticizer composition that includes a) a cellulose ester polymer, and b) a plasticizer, where the plasticizer is compatible with the cellulose ester polymer. The plasticizer is a compound represented by the Formula (I). In Formula (I), R1 is an alkyl group having from 1 to 4 carbons, inclusive, R2 is a CH3— group, a CH3CH2— group, or an R1O— group, and each R3 is independently an alkyl group having from 1 to 4 carbons, inclusive. Articles that includes the plasticizer composition and methods of preparing the plasticizer composition are provided.