Process for the carbonylation of acetylenically unsaturated compounds
    1.
    发明授权
    Process for the carbonylation of acetylenically unsaturated compounds 失效
    炔属不饱和化合物的羰基化方法

    公开(公告)号:US5414109A

    公开(公告)日:1995-05-09

    申请号:US198918

    申请日:1994-02-18

    CPC分类号: C07C67/38 C07C51/14

    摘要: A process for the carbonylation of acetylenically unsaturated compounds in the presence of a nucleophilic compound having one or more removable hydrogen atoms and a catalyst system based on a source of platinum, a bisphosphine of the formula R.sub.1 R.sub.2 PRPR.sub.3 R.sub.4 wherein each of R.sub.1,R.sub.2,R.sub.3 and R.sub.4 independently represents a hydrocarbyl group and R represents a bivalent bridging group and a source of anions from a conjugated base of an acid having a pKa of less than 4.

    摘要翻译: 在具有一个或多个可移除氢原子的亲核化合物存在下羰基化炔属不饱和化合物的方法和基于铂源的催化剂体系,式R1R2PRPR3R4的双膦,其中R 1,R 2,R 3和R 4各自 独立地表示烃基,R表示二价桥连基团和来自pKa小于4的酸的共轭碱的阴离子源。

    Preparation of muconic acid mononitriles and copper(II)-ammonia reagent
therefor
    4.
    发明授权
    Preparation of muconic acid mononitriles and copper(II)-ammonia reagent therefor 失效
    制备粘酸单体和铜(II) - 氨试剂

    公开(公告)号:US4335010A

    公开(公告)日:1982-06-15

    申请号:US230761

    申请日:1981-02-02

    IPC分类号: C01G3/14 C07C57/16 C07C120/00

    CPC分类号: C07C255/00 C01G3/14

    摘要: Substituted and unsubstituted phenols, catechols and orthobenzoquinones are converted to muconic acid mononitriles by reaction with copper(II)-ammonia reagents. The copper(II)-ammonia reagents can be prepared by the reaction of cuprous chloride with oxygen or air in liquid ammonia or in ammonium hydroxide or in pyridine followed by addition of ammonia or ammonium hydroxide. The muconic acid mononitriles are useful as monomers or comonomers and as intermediates in the manufacture of substituted and unsubstituted 6-aminocaproic acids, caprolactams and polyamides.

    摘要翻译: 通过与铜(II) - 氨试剂的反应将取代和未取代的酚,儿茶酚和邻苯醌被转化成粘康酸单腈。 铜(II) - 氨试剂可以通过氯化亚铜与氧气或空气在液氨或氢氧化铵或吡啶中反应,然后加入氨或氢氧化铵来制备。 粘康酸单腈可用作单体或共聚单体,也可用作制备取代和未取代的6-氨基己酸,己内酰胺和聚酰胺的中间体。

    Process for the preparation of trans, trans-muconic acid
    6.
    发明授权
    Process for the preparation of trans, trans-muconic acid 失效
    制备反式,反式 - 粘康酸的方法

    公开(公告)号:US4031136A

    公开(公告)日:1977-06-21

    申请号:US651263

    申请日:1976-01-22

    申请人: Lorenz Heiss

    发明人: Lorenz Heiss

    CPC分类号: C07C51/09 C07C67/46

    摘要: Process for the preparation of trans, trans-muconic acid by reacting a glyoxalacetal with ketene in the presence of an acid catalyst and hydrolyzing the .beta., .beta.'-dialkoxy-adipic acid-alkylester formed with alkali. By this new process trans, trans-muconic acid is easily obtained in better yield, which compound is an important intermediate for the production of 1,4-naphthalene-dicarboxylic acid esters.

    摘要翻译: 通过在酸催化剂存在下使乙二醛缩醛与烯酮反应并水解由碱形成的β,β'-二烷氧基 - 己二酸 - 烷基酯制备反式,反式 - 粘酸的方法。 通过这种新方法反式,以更好的产率容易地获得反式 - 粘酸,该化合物是生产1,4-萘二羧酸酯的重要中间体。