申请人:Eastman Chemical Company
公开号:US05693833A1
公开(公告)日:1997-12-02
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.
本发明涉及一种将在催化γ,δ-环氧烯异构化制备2,5-二氢呋喃过程中分解的无碘有机锡(IV)化合物转化为相应的催化活性有机锡(IV)碘化物的方法,其包括将催化剂混合物(i)有机锡(IV)碘化物,(ii)来自组分(i)的有机锡(IV)碘化物分解的无碘有机锡(IV)化合物,以及(iii)从烃和氯代烃中选择的溶剂与水合氢碘酸密切接触。