Preparation of methyltris(m-sulfonatophenyl) phosphonium iodide
trisodium salt and use thereof in carbonylation reactions to prepare
carboxylic acids and/or their esters
    3.
    发明授权
    Preparation of methyltris(m-sulfonatophenyl) phosphonium iodide trisodium salt and use thereof in carbonylation reactions to prepare carboxylic acids and/or their esters 失效
    制备甲基三(间磺苯基)碘化鏻三钠盐及其在羰基化反应中的用途,以制备羧酸和/或其酯

    公开(公告)号:US5403954A

    公开(公告)日:1995-04-04

    申请号:US177909

    申请日:1994-01-06

    IPC分类号: C07C51/12 C07C67/36 C07F9/54

    摘要: In a process for preparing methyltris(m-sulfonatophenyl)phosphonium iodide trisodium salt, the sodium salt of trisulfonated triphenylphosphine and methanol are introduced as the initial charge, a solution of methyl iodide in methanol is added dropwise at elevated temperature, and after an additional reaction time the reaction product is evaporated to dryness in vacuo.Methyltris(m-sulfonatophenyl)phosphonium iodide trisodium salt can be used to prepare carboxylic acids and/or their esters by carbonylation of saturated aliphatic alcohols having from 1 to 20 carbon atoms or their halo, ester or ether derivatives over a rhodium catalyst in the presence of water and methyl iodide under a CO partial pressure of from 0.3 to 200 bar at a temperature of from 100.degree. to 240.degree. C., provided methyltris(m-sulfonatophenyl)phosphonium iodide trisodium salt and carboxylic acid are added to the liquid phase prior to carbonylation.

    摘要翻译: 在制备甲基三(m-磺化苯基)碘化鏻三钠盐的方法中,引入三磺化三苯基膦和甲醇的钠盐作为初始电荷,在升高的温度下滴加甲基碘在甲醇中的溶液,并且在另外的反应 将反应产物真空蒸发至干。 甲基三(间磺酸苯基)碘化鏻三钠盐可用于通过羰基化具有1至20个碳原子的饱和脂族醇或其卤代,酯或醚衍生物在铑催化剂的存在下制备羧酸和/或其酯 的水和甲基碘在温度为100〜240℃的CO分压下,在0.3〜200巴的温度下,将碘化三甲基三(m-磺苯基)鏻三钠盐和羧酸加入到液相中 到羰基化。