Preparation of unsaturated cyclic ethers

专利名称：Preparation of unsaturated cyclic ethers发明人：Jurgen Schroeder,Thomas

Fetzer,Christopher William Rieker,Klaus Ebel

申请号：US08/695630申请日：19960812公开号：US05698715A公开日：19971216

摘要：A process for the preparation of unsaturated cyclic ethers of the generalformula I ##STR1## in which Z denotes --(CHR.sup.4).sub.q or - - (CHR.sup.4).sub.q --O--

q is 0, 1, 2 or 3 and

R.sup.1, R.sup.2, R.sup.3, and R.sup.4 denote hydrogen or C.sub. 1 -C.sub.4 alkyl fromdiols of the general formula II ##STR2## in which, R.sup.1, R.sup.2, and R.sup.3 have theaforementioned meanings, in the presence of a cobalt- containing supported catalyst,wherein the cobalt- containing supported catalyst used contains cobalt and a noblemetal-- selected from the group consisting of platinum, palladium, rhodium, iridium,ruthenium, osmium, rhenium, or mixtures thereof--in an atomic ratio of from 0.5:1 to70000:1 on an inert support and optionally basic alkali metal and alkaline earth metalsalts, scandium, vanadium, chromium, manganese, iron, nickel, copper, zinc, germanium,tin, lead, antimony, bismuth, or mixtures thereof and the reaction is carried out in theliquid phase at temperatures ranging from 150° to 300° C., and also novel cobalt-containing supported catalysts, prepared, in particular, by sol impregnation.

申请人：BASF AKTIENGESELLSCHAFT

代理机构：Keil & Weinkauf

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