Abstract: A method for producing unsaturated cyclic ethers of general formula (I) wherein Z represents (CHR4)q— or (CHR4)q—O—, q 0, 1, 2 or 3 and R1, R2, R3, R4 represent hydrogen or C1-C4-alkyl, by reacting dioles of general formula (II), wherein Z, R1, R2 and R3 have the above-mentioned meanings, in a liquid phase at temperatures of 150-300° C. in the presence of a support catalyst which is not activated prior to use by reduction and which contains cobalt and is doped with sulphur, containing cobalt, and an earth metal which is deposited by sol impregnation and is selected from the group containing platinum, palladium, rhodium, iridium, ruthenium, osmium, rhenium or mixtures thereof, on an inert support, characterized in that water is added.

Abstract: The invention relates to a method for producing hydrocarbons having a modified carbon skeleton by reacting aliphatic hydrocarbons a) with themselves, b) with another aliphatic hydrocarbon or c) with aromatic alkyl substituted hydrocarbons, in the presence of a metal organic catalyst or the hybrid thereof, at a temperature of between 20-400° C. and a pressure of between 0.2-100 bars, wherein the reaction takes place in the presence of hydrogen.

Abstract: In a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers having a low color number, the polymers obtained by cationic polymerization of tetrahydrofuran are hydrogenated in the presence of a macroporous, supported heterogeneous catalyst comprising at least one metal of subgroups VII [sic] to X [sic] of the Periodic Table of the Elements as active metal.

Abstract: The preparation of amines of the formula (I)

Abstract: Secondary amines of the formula 1

Abstract: Secondary amines of the formula (II)

Abstract: Optically active amines of the formula I 1

Abstract: Mixtures of primary amines of the formula (I)

Abstract: Amines of the formula (I)

Abstract: Monoisopropylamine is prepared by reacting acetone with ammonia and with hydrogen at elevated temperature and elevated pressure in the presence of a catalyst, wherein the catalytically active mass of the catalyst comprises, after its preparation and before the treatment with hydrogen,

Abstract: Amines are prepared by reacting aldehydes or ketones at elevated temperature under elevated pressure with nitrogen compounds selected from the group of ammonia, primary and secondary amines, and with hydrogen in the presence of a catalyst, wherein the catalytically active mass of the catalyst contains, after its preparation and before the treatment with hydrogen, 22 to 45% by weight of oxygen-containing compounds of zirconium, calculated as ZrO2,

Abstract: Optically active amines are racemized by reaction of the optically active amine in the gas phase at elevated temperature in the presence of hydrogen and a hydrogenation or dehydrogenation catalyst.

Abstract: In a process for racemizing optically active amines by reacting the optically active amine in the presence of hydrogen and a hydrogenation or dehydrogenation catalyst at elevated temperature, the reaction is carried out in liquid phase and the catalyst comprises the catalytically active constituents copper, silver, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and/or platinum and a support material selected from the group consisting of aluminum oxide, zirconium dioxide, titanium dioxide, carbon and/or oxygen compounds of silicon.

Abstract: Alcohols and/or aldehydes are prepared from olefins by cross-metathesis of olefins with alcohols having at least one double bond in the molecule and in which at least one hydroxyl is in the allyl position relative to a C.dbd.C double bond over catalysts of the formula (I)XX.sup.1 LL.sup.1 Ru [sic].dbd.CR.sup.1 R.sup.2 (I)with optional subsequent hydrogenation and/or isomerization, R.sup.1 and R.sup.2 being hydrogen or C-organic radicals with or without a heteroatom, X [sic] and X.sup.1 [sic] being, independently, anionic ligands, and L [sic] and L.sup.1 [sic] being, independently, neutral electron donor ligands.

Abstract: In a process for preparing bis(2-morpholinoethyl) ether by reacting diethylene glycol with ammonia under superatmospheric pressure and at elevated temperature in the presence of hydrogen and a hydrogenation catalyst, the catalytically active composition of the catalyst prior to reduction with hydrogen comprisesfrom 20 to 85% by weight of aluminum oxide (Al.sub.2 O.sub.3), zirconium dioxide (ZrO.sub.2), titanium dioxide (TiO.sub.2) and/or silicon dioxide (SiO.sub.2),from 1 to 70% by weight of oxygen-containing compounds of copper, calculated as CuO,from 0 to 50% by weight of oxygen-containing compounds of magnesium, calculated as MgO, oxygen-containing compounds of chromium, calculated as Cr.sub.2 O.sub.

Abstract: A process for preparing tetrahydrofuran, which comprises reacting 1,4-butenediol diethers of the formulae I and/or IIRO--CH.sub.2 --CH.dbd.CH--CH.sub.2 --OR IRO--CH.sub.2 --CH.sub.2 .dbd.CH--CH.sub.2 --OR II,where the R radicals can be identical or different and are C.sub.1 -C.sub.15 -alkyl or cycloalkyl radicals, C.sub.6 -C.sub.12 -aryl radicals or C.sub.7 -C.sub.15 -aralkyl radicals, with water and hydrogen at from 20 to 300.degree. C. under from 1 to 300 bar in the presence of catalysts or catalyst combinations which comprise components which are both capable of hydrogenation and have acidic or basic centers and a novel process for preparing 1,4-butanediol diethers of the formula I by metathesis are described.The invention furthermore relates to the separate preparation of 1,4-butanediol monoethers of the formula IIIHO--CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.

Abstract: The catalyst systems comprise as active constituentsa) a metal complex of the formula (I) ##STR1## b) one or more Lewis or protic acids or a mixture of Lewis and protic acids.

Abstract: 3-Pentenoic esters are prepared by carbonylation of alkoxybutenes in the presence of a catalyst and a solvent at elevated temperature and elevated pressure, by reacting at least one C.sub.1 -C.sub.10 -alkoxybutene in which the alkoxy group is in the allyl position relative to the double bond with carbon monoxide at from 60 to 140.degree. C. and a carbon monoxide partial pressure in the range from 3 to 30 MPa in the presence of a catalyst based on palladium.

Abstract: A process for the preparation of racemic amines of the formula I ##STR1## where R.sup.1 and R.sup.2 are different and R.sup.1, R.sup.2, R.sup.3 are alkyl, cycloalkyl, arylalkyl, aryl, heteroaryl and heterocyclic radicals and R.sup.3 can also be hydrogen, where the radicals can bear substituents selected from the group consisting of alkyl, cycloalkyl, alkoxy, aryloxy, amino, alkylamino and dialkylamino, which comprises simultaneously reacting in situ the corresponding optically active amine I and the secondary alcohol of the formula II and/or the unsymmetrical ketone of the formula III ##STR2## and the amine of the formula R.sup.3 NH.sub.2 in the presence of hydrogen and a hydrogenation catalyst or dehydrogenation catalyst at elevated temperature.

Abstract: Polymers are obtained by polymerising olefinically unsaturated monomers in the presence of a metal complex having the general formula (I), in which the substituents and indexes have the following meanings: M is a metal of group VIIIB of the periodic table of elements; E.sup.1, E.sup.2 stand for an element of group VA of the periodic table of elements; Z is a bridging structural unit made of one, two or three substructural units of elements of groups IVA, VA, VIA of the periodic table of elements; R.sup.1 to R.sup.4 stand for substituents selected in the group that consists of C.sub.1 -C.sub.20 organic carbon residues and C.sub.3 -C.sub.30 organic silicium residues which may contain one or several elements of groups IVA, VA, VIA and VIIA of the periodic table of elements; L.sup.1, L.sup.2 stand for formally charged or neutral ligands; X stands for monovalent or polyvalent anions; p equals 0, 1 or 2; m, n equal 0, 1 or 2, whereas p=m.times.n.