Isomerization of epoxyalkenes to 2,5-dihydrofurans
    21.
    发明授权
    Isomerization of epoxyalkenes to 2,5-dihydrofurans 失效
    环氧乙烯酮异构化为2,5-二氢呋喃

    公开(公告)号:US06395912B1

    公开(公告)日:2002-05-28

    申请号:US08481105

    申请日:1995-06-07

    IPC分类号: C07D30728

    摘要: Disclosed are processes for the isomerization of epoxyalkenes to dihydrofurans by contacting an epoxyalkene with a catalyst comprising a quaternary organic onium iodide compounds, optionally deposited on a non-acidic support and/or in combination with a Lewis acid co-catalyst The catalyst may comprise a supported catalyst, an unsupported catalyst or a solution of the catalytically-active components in an inert, organic solvent.

    摘要翻译: 公开了将环氧烯烃异构化为二氢呋喃的方法,该方法是将环氧烯烃与任选沉积在非酸性载体上和/或与路易斯酸助催化剂组合的季铵有机碘鎓化合物的催化剂接触。催化剂可以包含 负载型催化剂,无载体催化剂或催化活性组分在惰性有机溶剂中的溶液。

    Process for the reactivation of iodine-containing catalysts
    26.
    发明授权
    Process for the reactivation of iodine-containing catalysts 失效
    含碘催化剂再活化方法

    公开(公告)号:US5693833A

    公开(公告)日:1997-12-02

    申请号:US701932

    申请日:1996-08-26

    摘要: Disclosed is a process for converting an iodine-free organotin (IV) compound resulting from the decomposition of an organotin (IV) iodide during the catalytic isomerization of .gamma.,.delta.-epoxyalkenes to 2,5-dihydrofurans to the corresponding, catalytically active organotin (IV) iodide by intimately contacting a catalyst mixture comprising (i) an organotin (IV) iodide, (ii) an iodine-free organotin (IV) compound resulting from the decomposition of the organotin (IV) iodide of component (i), and (iii) a solvent selected from hydrocarbons and chlorocarbons with aqueous hydrogen iodide.

    摘要翻译: 本发明公开了一种在γ,δ-环氧乙烷催化异构化至2,5-二氢呋喃期间将碘化有机锡(Ⅳ)分解产生的无碘有机锡(Ⅳ)化合物转化为相应的催化活性有机锡( IV)碘化物,其通过紧密接触催化剂混合物,所述催化剂混合物包含(i)碘化有机锡(IV),(ii)由组分(i)的有机锡(IV)碘化物分解得到的无碘有机锡(IV)化合物和 (iii)选自烃和氯代烃的溶剂与碘化氢水溶液。

    Isomerization of epoxyalkenes to 2,5-dihydrofurans
    27.
    发明授权
    Isomerization of epoxyalkenes to 2,5-dihydrofurans 失效
    环氧乙烯酮异构化为2,5-二氢呋喃

    公开(公告)号:US06342614B1

    公开(公告)日:2002-01-29

    申请号:US08194655

    申请日:1994-02-10

    IPC分类号: C07D30728

    摘要: Disclosed are processes for the isomerization of epoxyalkenes to dihydrofurans by contacting an epoxyalkene with a catalyst comprising a quaternary organic onium iodide compounds, optionally deposited on a non-acidic support and/or in combination with a Lewis acid co-catalyst. The catalyst may comprise a supported catalyst, an unsupported catalyst or a solution of the catalytically-active components in an inert, organic solvent.

    摘要翻译: 公开了将环氧烯烃异构化为二氢呋喃的方法,其通过使环氧烯烃与包含季铵有机鎓碘化物的催化剂接触,任选地沉积在非酸性载体上和/或与路易斯酸助催化剂组合。 催化剂可以包含负载型催化剂,无载体催化剂或催化活性组分在惰性有机溶剂中的溶液。

    Isomerization of epoxyalkenes to 2,5-dihydrofurans
    28.
    发明授权
    Isomerization of epoxyalkenes to 2,5-dihydrofurans 失效
    环氧乙烯酮异构化为2,5-二氢呋喃

    公开(公告)号:US06201139B1

    公开(公告)日:2001-03-13

    申请号:US08481103

    申请日:1995-06-07

    IPC分类号: C07D30728

    摘要: Disclosed are processes for the isomerization of epoxyalkenes to dihydrofurans by contacting an epoxyalkene with a catalyst comprising a quaternary organic onium iodide compounds, optionally deposited on a non-acidic support and/or in combination with a Lewis acid co-catalyst. The catalyst may comprise a supported catalyst, an unsupported catalyst or a solution of the catalytically-active components in an inert, organic solvent.

    摘要翻译: 公开了将环氧烯烃异构化为二氢呋喃的方法,其通过使环氧烯烃与包含季铵有机鎓碘化物的催化剂接触,任选地沉积在非酸性载体上和/或与路易斯酸助催化剂组合。 催化剂可以包含负载型催化剂,无载体催化剂或催化活性组分在惰性有机溶剂中的溶液。