Process for the carbonylation of a conjugated diene
    3.
    发明申请
    Process for the carbonylation of a conjugated diene 失效
    共轭二烯的羰基化方法

    公开(公告)号:US20040039226A1

    公开(公告)日:2004-02-26

    申请号:US10381040

    申请日:2003-08-25

    IPC分类号: C07C067/36

    摘要: Process for the carbonylation of a conjugated diene by reacting the conjugated diene with carbon monoxide and an hydroxyl group containing compound in the presence of a catalyst system based on: (a) a source of palladium cations, (b) a diphosphine ligand, and (c) a source of anions, wherein the diphosphine ligand is a ligand having the general formula I wherein x1 and x2 represent a cyclic group with at least 5 ring atoms, of which one is a phosphorus atom, and R represents a bivalent aliphatic bridging group, connecting both phosphorus atoms, containing from 2 to 4 atoms inthe bridge, which is substituted with at least one substituent orR represents a phenyl group with both phosphorus groups bound to the 1,2-position.

    摘要翻译: 通过在催化剂体系的存在下使共轭二烯与一氧化碳和含羟基的化合物反应来共轭二烯羰基化的方法,其基于:(a)钯阳离子源,(b)二膦配体和( c)阴离子源,其中二膦配体是具有通式I的配体,其中x 1和x 2表示具有至少5个环原子的环状基团,其中一个是磷原子,R 表示二价脂肪族桥连基团,连接两个含有2至4个原子的磷原子,其桥接在被至少一个取代基取代的基团上,或R表示两个磷键合到1,2-位上的苯基。

    One Step Process for preparing a 1,3-diol
    6.
    发明申请
    One Step Process for preparing a 1,3-diol 失效
    一步法制备1,3-二醇

    公开(公告)号:US20020111516A1

    公开(公告)日:2002-08-15

    申请号:US09957279

    申请日:2001-09-20

    IPC分类号: B01J031/00 C07C045/49

    摘要: The invention provides a process for an improved oxirane hydroformylation catalyst, the improved oxirane hydroformylation catalyst, and a one step process for preparing a 1,3-diol in the presence of such a catalyst. One process for preparing the hydroformylation catalyst involves: a) forming a complex (A) by contacting a ruthenium(0) compound with a ditertiary phosphine ligand; and b) forming a complex (B) by subjecting complex (A) to a redox reaction with a cobalt(0) carbonyl compound. This catalyst is used in a one step hydroformylation process for preparing a 1,3-diol, comprising the reaction of an oxirane with syngas at hydroformylation conditions in an inert solvent in the presence of the above hydroformylation catalyst where recovery of product is preferably accomplished via phase separation of a diol rich phase from the bulk reaction liquor.

    摘要翻译: 本发明提供改进的环氧乙烷加氢甲酰化催化剂,改进的环氧乙烷加氢甲酰化催化剂的方法,以及在这种催化剂存在下制备1,3-二醇的一步法。 制备加氢甲酰化催化剂的一个方法包括:a)通过使钌(O)化合物与二膦配体接触形成络合物(A); 和b)通过使复合物(A)与羰基钴(O)化合物进行氧化还原反应来形成络合物(B)。 该催化剂用于制备1,3-二醇的一步加氢甲酰化方法,其包括在上述加氢甲酰化催化剂存在下,在惰性溶剂中,在加氢甲酰化条件下使环氧乙烷与合成气反应,其中产物的回收优选通过 富二醇相与本体反应液相分离。