Abstract: The invention describes a process for the preparation of novel surfactant alcohols and surfactant alcohol ethers by derivatization of olefins having from about 10 to 20 carbon atoms or of mixtures of such olefins to give alkanols, and optional subsequent alkoxylation, which comprises

Abstract: The invention relates to a process for the preparation of saturated C3-C20-alcohols in which a liquid hydrogenation feed comprising at least one C3-C20-aldehyde is passed over a bed of a hydrogenation catalyst in the presence of a hydrogen-containing gas, which comprises adding to the hydrogenation feed an amount, homogeneously soluble therein, of a salt-like base. The addition of base suppresses side reactions, such as acetalization, aldolization, Tischtschenko reaction or ether formation.

Abstract: The invention relates to a method for the production of propene from a mixture (M1) essentially consisting of the following: ethylene (component E); hexenes (components H); optionally olefinic hydrocarbons (components K1a) different from ethylene and hexenes and optionally other inert hydrocarbons (components K1b). According to said method, the mixture (M1) is brought into contact with a metathesis catalyst at a temperature of 20 to 350° C., with the proviso that, as regards mixture (M1): the molar proportion of the sum consisting of 2-hexene and 3-hexene in components H is at least 4:1 to 99:1; the molar ratio between component E and the sum of components H and K1a is 1:1 to 100:1; the ratio between 2-hexenes and 3-hexenes is at least 2:1 as long as the 3-hexenes contained in the mixture are not simultaneously subjected to isomerization by means of which the proportion of 2-hexenes is correspondingly increased.

Abstract: The invention relates to a method for the carbonylation of n-pentenoic acid or derivatives thereof of formula (I), wherein R1 represents CN or COOR2 and R2 represents hydrogen, alkyl or aryl. According to said method, a compound of formula (I) is reacted with carbon monoxide and a compound (II) containing a hydroxyl group in the presence of a catalyst system. The method is characterised in that the catalyst system is obtained by reacting a) a source of a metallic ion of a metal (III) of the 8th subgroup of the periodic table with b) a bidentate phosphine ligand of formula (IV), wherein R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14 independently of one another represent an inorganic group, which contains a respective carbon atom, by means of which the respective group is linked to the relevant tertiary carbon atom given in formula (IV), L1, L2 represent independently of one another a lower alkylene group and X represents an arylene group.

Abstract: The invention relates to phosphacyclohexanes of general formulae I and II, wherein the following designations, among others, apply: R can represent hydrogen, C1-100-alkyl, C7-20-aralkyl, C7-20-alkaryl, and C6-12-aryl: R1 to R10 can independently represent hydrogen, C1-20-alkyl, C7-20-aralkyl, C7-20-alkaryl, and C6-12-aryl: W, W′ can independently represent single bonds or bridges comprising 1 to 20 carbon atoms, which can form part of a cyclic or aromatic group and can be interrupted by heteroatoms. Said phosphacyclohexanes are used as ligands in transition metal complexes of transition metals belonging to groups VIII to X of the periodic table.

Abstract: The invention describes a process for the preparation of novel surfactant alcohols and surfactant alcohol ethers by derivatization of olefins having from about 10 to 20 carbon atoms or of mixtures of such olefins to give alkanols, and optional subsequent alkoxylation, which comprises subjecting a C4-olefin mixture to metathesis, dimerizing the resulting olefins, and then derivatizing them to give surfactant alcohols, and optionally alkoxylating said alcohols. The olefin mixture obtained in the dimerization has a high proportion of branched components and less than 10% by weight of compounds which contain a vinylidene group. The invention further describes the use of the surfactant alcohols and surfactant alcohol ethers to give surfactants by glycosylation or polyglycosylation, sulfation or phosphation.

Abstract: Dialkyl ketones are prepared by reductive carbonylation of &agr;-olefins by means of carbon monoxide and hydrogen in the presence of a catalyst system comprising (a) palladium or a palladium compound; (b) a phosphine; (c) a protic acid having a pKa of ≦4.5, measured in aqueous solution at 25° C.; and (d) a solubilizable carboxamide.

Abstract: The invention relates to a compound of formula (I) wherein X represents a low alkylen group, an arylene group or an alkarylene group, L1 has formula (II) wherein Y1 represents oxygen, sulphur or N—R17, R11, R12, R13, R14, R15, R16, R17 independently represent hydrogen, alkyl or aryl, L2 has formula (III) wherein Y2 represents oxygen, sulphur or N—R27, R21, R22, R23, R24, R25, R26, R27 independently represent hydrogen, alkyl or aryl wherein L1 and L2 can be identical or different. The inventive compound is suitable for use as a catalyst or for producing a catalyst system.

Abstract: Essentially monounsaturated polyalkylenes having from 30 to 700 carbon atoms are continuously hydroformylated by a process in which i) a hydroformylation-active cobalt carbonyl catalyst is prepared from a catalyst precursor dissolved in an aqueous phase in the absence of the polyalkylenes, ii) the polyalkylenes are hydroformylated by means of synthesis gas in the presence of the cobalt carbonyl catalyst in a reaction zone, iii) the cobalt carbonyl catalyst is separated from the output from the reaction zone with at least partial reformation of the catalyst precursor and the catalyst precursor is recirculated to step i).

Abstract: The invention relates to a process for the preparation of alkylarylsulfonates by

Abstract: A method of recording a broadcast signal includes accessing a host server by an intermediary communication unit. The host server includes a database of broadcast program information. The method includes selecting one or more program(s) from the database, using said intermediary communication unit transmitting information relating to a selected program from the host server to the intermediary communication unit, where the programming information is extracted. At least one control signal is generated and transmitted from the intermediary communication unit to a broadcast signal recorder to set the recorder to record the selected broadcast program. As all the user is required to do is to select a required broadcast program, for example a broadcast television program, from a list, the likelihood of the user entering information or commands incorrectly is greatly reduced. Furthermore, the user does not necessarily need to obtain and enter any codes relating to such information.

Abstract: In the ruthenium complexes of the general formula A or B, 1

Abstract: The invention relates to a process for the preparation of saturated C3-C20-alcohols in which a liquid hydrogenation feed comprising at least one C3-C20-aldehyde is passed over a bed of a hydrogenation catalyst in the presence of a hydrogen-containing gas, which comprises adding to the hydrogenation feed an amount, homogeneously soluble therein, of a salt-like base. The addition of base suppresses side reactions, such as acetalization, aldolization, Tischtschenko reaction or ether formation.

Abstract: The invention describes a process for the preparation of surfactant alcohols and surfactant alcohol ethers which are, inter alia, highly suitable as surfactants or for the preparation of surfactants. The process, starting from olefin mixtures which comprise less than 30% by weight of linear hexene isomers and utilizing a catalyst which contains nickel, prepares olefin mixtures having a predominant fraction of branched dodecenes, which are subsequently derivatized to give surfactant alcohols and then optionally alkoxylated. The invention further relates to the use of the surfactant alcohols and surfactant alcohol ethers for the preparation of surfactants by glycosidation or polyglycosidation, sulfation or phosphation.

Abstract: Dialkyl ketones are prepared by reductive carbonylation of &agr;-olefins by means of carbon monoxide and hydrogen in the presence of a catalyst system comprising

Abstract: Novel compounds of phosphorus, of arsenic and of antimony can be used as ligands to form complexes of metals of transition group VIII which can be used in catalysts for hydroformylation, hydrocyanation, carbonylation, hydrogenations, oligomerization and polymerization of olefins and for metathesis.

Abstract: Phosphabenzene compounds of the formula (I) where the radicals R1 to R13 are, independently of one another, hydrogen, COOM, SO3M, NR3X, NR2, OR, COOR or SR (where M=hydrogen, NH4 or alkali metal, X=anion, R=hydrogen or C1-C6-alkyl), or C1-C12-alkyl, C6-C12-aryl, C7-C12-aralkyl, C7-C12-alkaryl or C3-C6-heteroaromatics, where the alkyl, aryl, alkaryl and aralkyl radicals may bear the abovementioned radicals as substituents and two or more of the radicals may be joined to form aliphatic or fused-on rings, where at least one of the radicals R4 and R8 and at least one of the radicals R9 and R13 is not hydrogen, can be used for preparing hydroformylation catalysts.

Abstract: The invention relates to a catalyst which comprises at least one complex of a metal of group VIII, which comprises at least one uni-, bi- or multidentate phosphinite ligand in which the phosphorus atom and the oxygen atom of the phosphinite group are part of a 5- to 8-membered heterocycle, and to processes for hydroformylation and hydrocyanation of compounds which contain at least one ethylenic double bond in the presence of a catalyst of this type.

Abstract: The catalyst comprises at least one bi- or more highly dentate phosphonite ligand of the general formula I or salts and mixtures thereof and is useful in a process for hydroformylating compounds containing at least one ethylenically unsaturated double bond by reaction with carbon monoxide and hydrogen.

Abstract: Functionalized cyclopentene-derived oligomer mixtures are prepared by reacting oligomer mixtures which contain ethyleneic double bonds in one or more reaction steps starting from cyclopentene-derived oligomer mixtures of the formula I R1R2C═[═CH—(CH2)3—CH═]n═CR3R4  (I) where n is an integer from 1 to 15, and R1, R2, R3 and R4 are, independently of one another, hydrogen or alkyl, and are used as described.