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    Preparation of polycarboxylic compounds
    42.
    发明授权
    Preparation of polycarboxylic compounds 失效
    多元羧酸化合物的制备

    公开(公告)号：US4420621A

    公开(公告)日：1983-12-13

    申请号：US217347

    申请日：1980-12-17

    申请人： Eddie N. Gutierrez ,  Vincent Lamberti

    发明人： Eddie N. Gutierrez ,  Vincent Lamberti

    IPC分类号： C07C51/38 ,  C07C67/03 ,  C07C67/08 ,  C07D307/33 ,  C07D307/32

    CPC分类号： C07C51/38 ,  C07C67/03 ,  C07C67/08 ,  C07D307/33

    摘要： Novel methods for preparing polycarboxylic compounds which are useful as metal sequestrants and food acidulants are disclosed. These compounds are aconitic acid and a mixture of aconitic acid, and the lactones of isocitric acid and alloisocitric acid. The compounds can be neutralized to the corresponding salts which, in turn, are metal sequestering agents. The novel methods include chlorination of propane-1,1,2,3-tetracarboxylic tetraesters.

    摘要翻译： 公开了可用作金属螯合剂和食品酸化剂的制备多元羧酸化合物的新方法。 这些化合物是乌头酸和乌头酸和异柠檬酸和异亮氨酸的内酯的混合物。 化合物可以被中和到相应的盐，其又是金属螯合剂。 新方法包括丙烷-1,1,2,3-四羧酸四酯的氯化。

    Lactones
    45.
    发明授权
    Lactones 失效
    内酯

    公开(公告)号：US4310464A

    公开(公告)日：1982-01-12

    申请号：US702732

    申请日：1976-07-06

    申请人： Winston Costain ,  Bernard W. H. Terry ,  Nazim Punja ,  Peter J. V. Cleare

    发明人： Winston Costain ,  Bernard W. H. Terry ,  Nazim Punja ,  Peter J. V. Cleare

    IPC分类号： A01N43/08 ,  C07C51/00 ,  C07C51/58 ,  C07C57/52 ,  C07C57/76 ,  C07C67/00 ,  C07C69/65 ,  C07C69/743 ,  C07C69/747 ,  C07C253/00 ,  C07C255/23 ,  C07C255/48 ,  C07D307/33 ,  C07D307/32

    CPC分类号： C07D307/33 ,  C07C51/58 ,  C07C57/52

    摘要： 4-.beta., .beta.-dichlorovinyl (or dibromovinyl)-3,3-dimethylbutyrolactones are prepared from 1,1-dichloro (or dibromo)-4-methylpenta-1,3-diene by reacting with an acid of formula CH.sub.2 R.CO.sub.2 H in presence of a salt of a metal in one of its higher valency states, especially manganese (III), cerium (IV), or vanadium (V). Higher yields are obtained in the presence of the anhydride of the acid and of the sodium or potassium salt of the acid. Treatment of the lactones with an inorganic acid halide opens the lactone ring with formation of the corresponding 4-haloacid halide, which with alcohols affords the corresponding 4-haloacid ester, cyclised by bases to a 3-.beta.,.beta.-dichloro (or dibromo)vinyl-2,2-dimethylcyclopropanecarboxylic ester, intermediate for insecticides such as the m-phenoxybenzyl ester.

    摘要翻译： 由1,1-二氯（或二溴）-4-甲基戊-1,3-二烯通过与式CH2R.CO2H的酸反应制备4-β，β-二氯乙烯基（或二溴乙烯基）-3,3-二甲基丁内酯 在其较高价态之一，特别是锰（III），铈（IV）或钒（V）之一中存在金属盐。 在酸的酸酐和酸的钠盐或钾盐的存在下获得更高的产率。 用无机酰卤处理内酯，形成相应的4-卤代卤化物，使其与醇反应，形成相应的4-卤代酸酯，通过碱环化为3-β，β-二氯（或二溴） 乙烯基-2,2-二甲基环丙烷羧酸酯，间苯氧基苄基酯等杀虫剂的中间体。

    Ester derivatives of polycarboxylic acids and process for making same
    47.
    发明授权
    Ester derivatives of polycarboxylic acids and process for making same 失效
    多元羧酸的酯衍生物及其制备方法

    公开(公告)号：US4299773A

    公开(公告)日：1981-11-10

    申请号：US91431

    申请日：1979-11-05

    申请人： Eddie N. Gutierrez ,  Vincent Lamberti

    发明人： Eddie N. Gutierrez ,  Vincent Lamberti

    IPC分类号： C07C57/02 ,  C07C59/245 ,  C07C205/51 ,  C07D305/12 ,  C07D307/33 ,  C07D307/32 ,  C07C51/09

    CPC分类号： C07D307/33 ,  C07C201/12 ,  C07D305/12

    摘要： Novel polyfunctional compounds and a novel process for their preparation are disclosed. These compounds may be converted into the acid or salt forms of cis and trans aconitic acids as well as into a racemic mixture of isocitric acid, alloisocitric acid and the lactones of isocitric acid and alloisocitric acid and their salts. All of the acid and salt forms produced are useful as metal sequestrants and/or detergent builders. The novel polyfunctional compounds can also be saponified to their corresponding alkali metal salts which, in turn, are also metal ion sequestering agents and detergent builders. The polyfunctional compounds are the reaction products obtained from the reaction of selected salts of monoalkyl esters of maleic acid with selected active hydrogen containing compounds.

    摘要翻译： 公开了新型多官能化合物及其制备方法。 这些化合物可以转化为顺式和反式乌头酸的酸或盐形式，以及异柠檬酸，异亚油酸和异柠檬酸和异亮氨酸及其盐的内酯的外消旋混合物。 生成的所有酸和盐形式可用作金属螯合剂和/或洗涤剂助洗剂。 新型多官能化合物也可以皂化成相应的碱金属盐，其又是金属离子螯合剂和洗涤剂助洗剂。 多官能化合物是从所选择的含活性氢化合物的马来酸单烷基酯的选择盐的反应获得的反应产物。

    Preparation of dihalogenovinyl-.gamma.-butyrolactones
    48.
    发明授权
    Preparation of dihalogenovinyl-.gamma.-butyrolactones 失效
    制备二卤代乙酰基-γ-丁内酯

    公开(公告)号：US4276218A

    公开(公告)日：1981-06-30

    申请号：US67241

    申请日：1979-08-16

    申请人： Reinhard Lantzsch

    发明人： Reinhard Lantzsch

    IPC分类号： C07D307/33 ,  C07D307/32

    CPC分类号： C07D307/33

    摘要： A process for the preparation of a dihalogenovinyl-.gamma.-butyrolactone of the formula ##STR1## in which Hal each independently is F, Cl or Br, andR.sup.1 and R.sup.2 each independently is hydrogen or C.sub.1-4 -alkyl, or R.sup.1 and R.sup.2 together with the adjacent carbon atom form a cycloaliphatic ring with up to 7 carbon atoms,comprising hydrolyzing in acidic aqueous medium a compound of the formula ##STR2## in which R is hydrogen or C.sub.1-4 -alkyl, to form the corresponding acid and then, without isolation of the intermediate hydrolysis product, heating at 110.degree.-120.degree. C. to decarboxylate.

    摘要翻译： 制备式“IMAGE”的二卤代乙酰基-γ-丁内酯的方法，其中Hal各自独立地为F，Cl或Br，R 1和R 2各自独立地为氢或C 1-4 - 烷基，或R 1和R 2一起 其中相邻的碳原子形成具有至多7个碳原子的脂环族环，包括在酸性水性介质中水解其中R为氢或C 1-4 - 烷基的式“IMAGE”化合物，以形成相应的酸， 不分离中间体水解产物，在110-120℃下加热至脱羧酸。

    Preparation of gamma-lactones
    50.
    发明授权
    Preparation of gamma-lactones 失效
    γ-内酯的制备

    公开(公告)号：US4247467A

    公开(公告)日：1981-01-27

    申请号：US972857

    申请日：1978-12-26

    申请人： Jawad H. Murib

    发明人： Jawad H. Murib

    IPC分类号： C07D315/00 ,  C07D307/32

    CPC分类号： C07D315/00

    摘要： A process for preparing gamma-lactones which comprises contacting an alpha-olefin, oxygen and a carboxylic acid containing an alpha-hydrogen atom in the vapor phase at an elevated temperature and at a controlled pressure in the presence of a catalytically effective amount of a catalyst comprising an oxide of uranium. The catalyst preferably also contains at least one oxide selected from the group consisting of arsenic, antimony and bismuth oxides. A preferred process comprises contacting ethylene, oxygen and acetic acid at atmospheric pressure in the presence of a catalyst consisting essentially of oxides of uranium and antimony to produce gamma-butyrolactone.

    摘要翻译： 一种制备γ-内酯的方法，其包括在催化有效量的催化剂存在下，在升高的温度和受控的压力下，使气相中的α-烯烃，氧和含羧酸的羧酸接触 包括铀氧化物。 催化剂优选还含有选自砷，锑和氧化铋中的至少一种氧化物。 优选的方法包括在大气压下在基本上由铀和锑的氧化物组成的催化剂存在下使乙烯，氧气和乙酸接触以产生γ-丁内酯。