Saturated branched fatty acids containing 20 to 28 carbon atoms or
esters thereof with C.sub.1-36 alkanols, a process for their production
and their use
    14.
    发明授权
    Saturated branched fatty acids containing 20 to 28 carbon atoms or esters thereof with C.sub.1-36 alkanols, a process for their production and their use 失效
    含有20〜28个碳原子的饱和支链脂肪酸或其酯与C1-36链烷醇,其制备方法及其用途

    公开(公告)号:US5481025A

    公开(公告)日:1996-01-02

    申请号:US915845

    申请日:1992-07-24

    摘要: Saturated, branched C.sub.20-28 fatty acids or esters thereof esterified with C.sub.1-36 alkanols produced by the process comprising: (a) reacting unsaturated fatty acids containing 18 to 22 carbon atoms and more than one olefinic bond or esters thereof esterified with C.sub.1-36 alkanols with ethylene at a temperature of from about 50.degree. C. to about 140.degree. C. and at a pressure of from about 5 to about 60 bar in the presence of transition metal compounds selected from the group consisting of Ru, Rh, Pd, Ir, or Pt wherein the molar ratio of ethylene to fatty acid or fatty acid ester is from about 1:1 to about 3:1 to form an olefinically unsaturated adduct and, (2) hydrogenating said adduct in the presence of a hydrogenation catalyst at a temperature of from about 70.degree. C. to about 120.degree. C. and under a hydrogen pressure of from 10 to about 30 bar.The invention also relates to the process for producing the saturated acids or esters, and to a process for depressing the pour point of a lubricant and to the lubricant so produced.

    摘要翻译: PCT No.PCT / EP91 / 00053 Sec。 371日期:1992年7月24日 102(e)日期1992年7月24日PCT 1991年1月15日PCT PCT。 公开号WO91 / 11426 日本1991年8月8日。具有以下工艺生产的用C 3-6链烷醇酯化的饱和的支链C 20-28脂肪酸或其酯:(a)使含有18-22个碳原子的不饱和脂肪酸和多于一个烯键的反应或 其酯与C1-36链烷醇与乙烯在约50℃至约140℃的温度和约5至约60巴的压力下在存在过渡金属化合物的情况下酯化,所述过渡金属化合物选自 的Ru,Rh,Pd,Ir或Pt,其中乙烯与脂肪酸或脂肪酸酯的摩尔比为约1:1至约3:1以形成烯属不饱和加合物,和(2)将所述加合物氢化 在约70℃至约120℃的温度和10至约30巴的氢气压力下存在氢化催化剂。 本发明还涉及制备饱和酸或酯的方法,以及用于抑制润滑剂和如此制备的润滑剂的倾点的方法。

    Process for preparing alkali metal salts of 3-hydroxypropionic acid
    15.
    发明授权
    Process for preparing alkali metal salts of 3-hydroxypropionic acid 失效
    制备3-羟基丙酸的碱金属盐的方法

    公开(公告)号:US5321156A

    公开(公告)日:1994-06-14

    申请号:US117093

    申请日:1993-09-13

    CPC分类号: C07C51/235

    摘要: By reacting 1,3-propanediol with oxygen or an oxygen-containing gas in an aqueous alkaline solution in the presence of a palladium containing catalyst substrate, alkaline salts of 3-hydroxypropionic acid are produced in good yield when the catalyst is used in an amount that corresponds to 0.1 to 3.0% by weight of palladium, based on the 1,3-propanediol.

    摘要翻译: PCT No.PCT / EP92 / 00477 Sec。 371日期1993年9月13日 102(e)1993年9月13日PCT PCT 1991年3月4日PCT公布。 出版物WO92 / 16489 日期:1992年10月1日。在含钯催化剂底物的存在下,通过使1,3-丙二醇与氧或含氧气体在碱性水溶液中反应,产生3-羟基丙酸的碱性盐,产率良好, 催化剂的使用量相当于以1,3-丙二醇为基准的钯的0.1〜3.0重量%。

    Process for the catalytic cleavage of lactones
    16.
    发明授权
    Process for the catalytic cleavage of lactones 失效
    内酯催化裂解的方法

    公开(公告)号:US06790987B2

    公开(公告)日:2004-09-14

    申请号:US10362057

    申请日:2003-02-20

    IPC分类号: C07C5109

    摘要: The present invention relates to a process of cleaving lactones optionally having functional groups to give carboxylic acids, where the corresponding lactone is reacted with hydrogen with catalysis by a compound of a metal of group VIII of the Periodic Table of the Elements which has been modified with organophosphines. The process is preferably carried out in a two-phase system using catalysts which have water-soluble phosphine ligands. The reaction is particularly suitable for cleavage 2-ethylidene-6-hepten-5-olide to give ethylidene-6-heptenecarboxylic acid or isomers thereof. This carboxylic acid can be hydrogenated in a manner known per se to give 2-ethylheptanoic acid.

    摘要翻译: 本发明涉及一种切割任选具有官能团以产生羧酸的内酯的方法,其中相应的内酯与氢反应,通过元素周期表第VIII族金属的化合物进行催化,该化合物已经用 有机膦。 该方法优选在使用具有水溶性膦配体的催化剂的两相体系中进行。该反应特别适用于裂解2-亚乙基-6-庚烯-5-醇,得到亚乙基-6-庚烯羧酸或异构体 其中。 该羧酸可以本身已知的方式氢化,得到2-乙基庚酸。