Abstract: This disclosure relates to new metal complexes, such as compounds of Formula 1, and their application in olefin or alkyne metathesis and to methods of carrying out olefin metathesis reactions.

Abstract: Embodiments of the present invention are directed generally to methods for producing high purity exo-alkenylnorbornenes from a mixture of conformational isomers thereof.

Abstract: The present invention provides ruthenium complexes of the formula wherein: X and X? denote an anionic ligand selected independently from the group consisting of anions of halogens, the phenolate anion (C6H5O?) the perfluorophenolate anion (C6F5O?), and residues of arylcarboxylic, alkylcarboxylic, perfluoroalkylcarboxylic, alkylsulphonic, arylsulphonic, or perfluoroalkylsulphonic acids; A denotes either nitrogen or carbon with an R5 group; R1 denotes hydrogen, C1-C5 alkyl, C2-C5 alkene or C3-C7 cycloalkyl; and R2, R3, R4, R5, R6, R7 denote independently hydrogen, C1-C25 alkyl, C1-C25 perfluoroalkyl, C5-C24 aryl, C2-C25 alkene, C3-C7 cycloalkyl, nitro (—NO2), cyano (—CN), formyl (—CHO), carboxyl (—COOH), or an ester (—COOR?), sulphone (—SO2R?), sulphonamide (—SO2NR?2), or ketone (—COR?) group, in which R? is a C1-C5 alkyl, C1-C5 perfluoroalkyl, or C5-C24 aryl group.

Abstract: The present invention relates to a synthesis method of metal cyclopentadienide by direct reaction of dicyclopentadiene with a group 1 metal in the presence of an aprotic solvent. Unlike the conventional method depending on retro Diels-Alder reaction of dicyclopentadiene to generate indirectly cyclopentadiene, the method of the present invention favors generation of cyclopentadiene and metal cyclopentadienide as well by adding dicyclopentadiene directly when the reaction temperature reaches to the boiling point of a reaction solvent.

Abstract: A process for the selective ring opening of ring-containing hydrocarbons in a feed stream having at least 10% ring-containing hydrocarbons includes contacting the feed stream with a ring opening catalyst containing a metal or a mixture of metals active for the selective ring opening of the ring-containing hydrocarbons on a support material, wherein the support material is a non-crystalline, porous inorganic oxide or mixture of inorganic oxides having at least 97 volume percent interconnected mesopores based on micropores and mesopores, and wherein the ring-containing hydrocarbons have at least one C6 ring and at least one substituent selected from the group consisting of fused 5- or 6-membered rings, alkyl, cycloalkyl and aryl groups.

Abstract: The present invention relates to a process for carrying out olefin ring-closing metathesis (RCM) wherein compressed carbon dioxide (gaseous, liquid or supercritical) acts as solvent for the liquid or solid reactant and the products obtained therefrom, while additionally one or more ionic liquids are introduced as the 2nd phase in which homogeneous olefin metathesis catalysts are immobilised.

Abstract: Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the catalyst. The halogen may be removed by one of several methods. One method includes heating the catalyst in a low moisture environment, followed by contacting the heated catalyst with air and/or steam. Another method includes steam-treating the catalyst at a temperature from 400° C. to 1000° C. The hydrocarbon or oxygenate conversion processes include the conversion of oxygenates to olefins, the conversion of oxygenates and ammonia to alkylamines, the conversion of oxygenates and aromatic compounds to alkylated aromatic compounds, cracking and dewaxing.

Abstract: The invention relates to modified supported catalysts based on Re2O7/?-Al2O3 for use in the preparation of cycloalkadienes in a metathesis reaction, a process for preparing cycloalkadienes in the presence of these supported catalysts and the use of the resulting cycloalkadienes for the preparation of fragrances.

Abstract: The present invention relates to a process for preparing cycloalkadienes using supported catalysts based on Re2O7/?-Al2O3 and also to the use of the resulting cycloalkadienes for the preparation of fragrances.

Abstract: The present invention relates to supported catalysts based on Re2O7/(—Al2O3 for use in the preparation of cycloalkadienes in a metathesis reaction, a process for preparing cycloalkadienes in the presence of these supported catalysts and also the use of the resulting cycloalkadienes for preparing fragrances.

Abstract: For the purification of the norbornene obtained by the reaction of dicyclopentadiene or cyclopentadiene and ethylene, the crude reaction mixture containing light impurities having boiling temperatures lower than that of norbornene; medium-heavy impurities having the boiling temperatures between that of norbornene and that of ethylnorbornene; and heavy impurities containing ethylnorbornene and compounds boiling higher than ethylnorbornene, boiling temperatures greater than that ethylnorbornene, a first distillation of the crude reaction mixture is carried out in a tailing column (C1), removing a portion of the heavy impurities and a portion of the medium-heavy impurities; then a second distillation of the crude mixture, thus tailed, is carried out in a topping column (C2), removing the light impurities; and a third distillation of the mixture, thus topped, is subsequently carried out in a tailing column (C3), removing the remainder of the heavy and medium-heavy impurities.

Abstract: This invention provides a method of preparing an isomerization catalyst by contacting an alkali metal with catalyst support particles in a fluidized bed. After the alkali metal is uniformly dispersed on the support particles, oxygen is added to the fluidizing gas to oxidize a portion of the alkali metal.

Abstract: A process for the preparation of monomeric polyvinyl compounds and/or oligomers thereof comprising:(i) preactivating a supported rhenium oxide catalyst with a hydrocarbyl metal compound; and(ii) reacting, under metathesis reaction conditions, norbornene or one or more substituted norbornenes, or mixtures thereof, with ethylene in the presence of the activated supported catalyst of step (i).

Abstract: Process for adjusting the cis-trans-double bond configuration in polyalkenamers produced by ring-opening polymerization of cis,cis-1,5-cyclooctadiene or 2-norbornene wherein the polymerization is performed in the presence of isoprene and/or a cyclic olefin with a double-bond pair in the 1,3-position.

Abstract: The invention disclosed herein comprises a process for the selective upgrading of combustion quality of a distillate transportation fuel by careful selective dehydrogenation, disproportionation and hydrogenation to convert cycloparaffinic materials contained in the distillate transportation fuel to acyclic paraffinic hydrocarbons, wherein said conversion is undertaken by first forming cyclomonoolefinic hydrocarbons from cycloparaffinic hydrocarbons via dehydrogenation, disproportionating the cyclomonoolefinic hydrocarbons to acyclic di-.alpha.-olefin hydrocarbons and then selectively hydrogenating said di-.alpha.-olefin hydrocarbons in the presence of hydrogen to saturate the double bonds of the di-.alpha.-olefin to form acyclic paraffinic hydrocarbons. The selective disproportionation reaction includes the addition of ethylene or an ethylene acting material to ring open the cyclomonoolefinic material.

Abstract: A first aspect of the invention is concerned with fuels and particularly jet and diesel fuels which comprise blends of substituted mono cyclohexane material and two ring non-fused cyloalkane material. The first material may be n-propylcyclohexane or n-butylcyclohexane. The second material may be nuclear substituted bicyclohexyl and may include cyclohexylbenzene. A second aspect of the invention concerns producing constituents for the fuel from heavy aromatic materials by breaking down the heavy aromatics to naphthas, separating light napthas and other constituents of the fuel before reforming a heavy naptha fraction to provide a BTX fraction which may be treated by hydroalkylation or pyrolysis to provide two ring non-fused cycloalkanes. The product may be enriched by hydrogenation.

Abstract: The present invention relates to a catalyst for the isomerization reaction from quadricyclanes to norbornadienes in a conversion system from light energy to heat energy which comprises cyclopropenylidene palladium complex represented by the formula, ##STR1## wherein R represents hydrogen atom, a lower alkyl or cyano group and X represents a halogen atom, and further relates to a fixed catalyst for the isomerization reaction from quadricyclanes to norbornadienes in a conversion system from light energy to heat energy which is obtained by adsorption-fixing a porphyrin Co(II) complex represented by the formula, ##STR2## wherein R.sub.2 represents a lower alkyl group and R.sub.3 represents a hydroxycarbonyl lower alkyl group, to a modified inorganic carrier in which a polyamine sulfone comprising a recurring unit represented by the formula, ##STR3## wherein R.sub.1 represents a lower alkyl group and X represents a halogen atom, has been adsorbed on a solid inorganic carrier.

Abstract: A process for isomerizing limonene to terpinolene in the presence of an acidic catalyst and in the presence of a buffer.

Abstract: A method for converting endo-tetrahydrodicyclopentadiene to the corresponding exo isomeric form which is advantageously carried out in the presence of aluminum chloride catalyst and the spent nickel hydrogenation catalyst utilized in hydrogenating an endo dimer of cyclopentadiene to provide said tetrahydro derivative thereof.

Abstract: Hydrogenolysis of a saturated endo-endo dihydronorbornadiene hexacyclic dimer involves the use of a catalytic amount of a Group VIII metal and the presence of hydrogen. The resulting pentacyclic isomers can be used as a diluent for depressing the freezing point of the saturated hexacyclic dimer which is a component of a high density missile fuel.

Abstract: A process for cleavage of unsaturated multi-cyclic ketones involves thermal cracking of the liquid ketone at elevated temperatures in the absence of water to produce cyclohexanone and a variety of other cleavage products. Para-toluenesulfonic acid and transition metal oxides are advantageously employed as catalysts.

Abstract: Cyclohexene may be produced from phenylcyclohexane by treating the latter compound at an elevated temperature in the presence of certain solid acidic catalysts such as zeolite or silica-alumina to produce the desired compound.