专利名称：Improved method for preparing
unsaturated cyclic ethers
发明人：GROENING, CARSTEN DR.,HESSE, MICHAEL
DR.,HEINECKE, DANIEL DR.,KNEUPER, HEINZ-JOSEF DR.,FRITZ, GERHARD DR.
申请号：EP98122406.6申请日：19981126公开号：EP0933374A1公开日：19990804
摘要：Unsaturated cyclic ethers are produced from diols in high yield and with lowhydrogenated byproduct formation, by use of a supported cobalt-noble metal catalystthat has been doped with sulfur. A process for the production of unsaturated cyclicethers (I) of formula (1) comprises reaction of a diol (II) of formula: OH-CH(R<1>)-Y-CH(R<2>)-CH(R<3>)-OH (2), in the liquid phase at 150-300 degrees C, in the presence ofa supported cobalt- containing catalyst (III) that has not been activated by reductionprior to use. The cobalt containing catalyst (III) is impregnated with a noble metal
consisting of platinum, palladium, rhodium, iridium, ruthenium, osmium and/or rhenium onan inert carrier that is doped with sulfur. Y = -(CHR<4>)q- or -(CHR<4>)q-O-; R<1>-R<4> = H or 1-4C alkyl; q = 0-3. An Independent claim is also included for the supportedcobalt catalyst (III).
申请人：BASF AKTIENGESELLSCHAFT
地址：67056 Ludwigshafen DE
国籍：DE
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