Epoxide stabilization of fluorophosphite-metal catalyst system in a hydroformylation process
    12.
    发明授权
    Epoxide stabilization of fluorophosphite-metal catalyst system in a hydroformylation process 有权
    氟代亚磷酸盐 - 金属催化剂体系在加氢甲酰化过程中的环氧化稳定性

    公开(公告)号:US06693219B2

    公开(公告)日:2004-02-17

    申请号:US10145922

    申请日:2002-05-15

    IPC分类号: C07C4549

    CPC分类号: C07B41/06 C07C45/50 C07C47/02

    摘要: A process for stabilizing a fluorophosphite ligand in a hydroformylation reaction mixture having an &agr;-olefin, hydrogen, carbon monoxide and a catalyst composition having a combination of a rhodium containing compound and one or more fluorophosphite compounds having the general formula: wherein R1 and R2 are hydrocarbyl radicals which contain a total of up to about 40 carbon atoms, the process includes the step of adding to the reaction mixture an epoxide in a sufficient amount to reduce the degradation of the fluorophosphite ligand.

    摘要翻译: 一种用于在具有α-烯烃,氢气,一氧化碳和具有铑化合物和一种或多种具有以下通式的氟代亚磷酸酯化合物的组合的催化剂组合物的加氢甲酰基化反应混合物中稳定氟亚磷酸酯配体的方法:其中R 1, 并且R 2是含有总共高达约40个碳原子的烃基,该方法包括向反应混合物中加入足够量的环氧化物以降低氟亚磷酸酯配体降解的步骤。

    Soluble magnesium catalyst for preparation of dihydroxy esters
    13.
    发明授权
    Soluble magnesium catalyst for preparation of dihydroxy esters 失效
    用于制备二羟基酯的可溶性镁催化剂

    公开(公告)号:US5861354A

    公开(公告)日:1999-01-19

    申请号:US642376

    申请日:1996-05-03

    CPC分类号: C07C67/44 Y10S502/512

    摘要: A catalyst and process for preparation of dihydroxy esters from specified hydroxy aldehydes is disclosed. In one embodiment, a catalyst liquid is provided which comprises from 10 percent to 60 percent magnesium salt of a specified alkanoic acid or acids, and from 90 percent to 40 percent of a particular alkanoic acid or acids, the molar ratio of alkanoic acid to magnesium salt being from about 1.5 to 20.3. The catalyst solution or liquid contacts or is contacted with a specified hydroxy aldehyde under suitable reaction conditions to form the desired dihydroxy ester. In another embodiment, dihydroxy esters are derived from specified hydroxy aldehydes by first forming a magnesium catalyst containing liquid by reacting magnesium or magnesium oxide, under suitable conditions, with a suitable alkanoic acid or acids, the acid or acids being provided in excess in specified molar ratios. The magnesium salt-alkanoic acid liquid produced is then employed as a catalyst liquid to convert the respective hydroxy aldehyde under suitable reaction conditions to form the desired dihydroxy ester.

    摘要翻译: 公开了一种用于由特定羟基醛制备二羟基酯的催化剂和方法。 在一个实施方案中,提供了催化剂液体,其包含10%至60%的特定链烷酸或酸的镁盐和90%至40%的特定链烷酸或酸,链烷酸与镁的摩尔比 盐约为1.5至20.3。 催化剂溶液或液体在合适的反应条件下与特定的羟基醛接触或接触以形成所需的二羟基酯。 在另一个实施方案中,二羟基酯衍生自特定的羟基醛,首先通过在合适的条件下使镁或氧化镁与合适的链烷酸或酸反应而形成含有液体的镁催化剂,酸或酸以规定的摩尔数过量提供 比率。 然后将所生产的镁盐 - 链烷酸液体用作催化剂液体,以​​在合适的反应条件下转化相应的羟基醛以形成所需的二羟基酯。