Abstract: A process for producing a monoalkenyl aromatic hydrocarbon compound which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom bonded at an .alpha.-position of the side chain (such as xylene) with a conjugated diene having 4 or 5 carbon atoms (such as butadiene) in the presence of a catalyst comprising a mixture obtained by heat treating metallic sodium together with a mixture of a zirconium oxide and a potassium compound in an inert gas atmosphere. An industrially useful monoalkenyl aromatic hydrocarbon compound is produced in a high yield at a low cost with enhanced safety from a specific aromatic hydrocarbon compound and a specific conjugated diene compound.

Abstract: In a process for producing an alkenylbenzene by the reaction of an alkylbenzene having 8 or more carbon atoms and a conjugated diolefin, the improvement in which the reaction is performed in the presence of a catalyst obtained by dispersing (a) an alkali metal and (b) potassium carbonate and/or potassium hydroxide in the presence of (c) an aromatic hydrocarbon having at least a substituent with a double bond.

Abstract: The invention relates to a new process for the preparation of geminal diarylalkanes of the formula ##STR1## by Friedel-Crafts alkylation of aromatic compounds with specific aliphatic halogen compounds (addition compounds of CCl.sub.4 , to .alpha.-olefins), to new geminal diarylalkanes and the aralkyl compounds resulting as intermediates.

Abstract: Alkenyl-substituted benzene derivatives are produced by oxidatively coupling at elevated temperature a benzene having at least one activated saturated hydrocarbyl substituent in vapor form with a gaseous paraffinic hydrocarbon in the presence of a gaseous oxidant and as catalyst therefor a binary metallic or multimetallic composition capable of oxidatively coupling methane.

Abstract: A process for the preparation of vinyl aromatic compounds comprises contacting an aromatic compound and an olefin in the presence of a catalytic amount of a cyclopentadienyl, indenyl, or fluorenyl rhodium complex under reaction conditions sufficient to form the corresponding vinyl aromatic compound. Novel alkyl- or trimethylsilyl-substituted indenyl or fluorenyl compounds are among the compounds suitable for use in the process of the invention.

Abstract: A method of preparing an aryl alkene compound comprising reacting an iodoaromatic compound an alkene and an alkanol in the presence of a palladium catalyst and the absence of a Bronsted base.

Abstract: The invention relates to azaphospholenes of the type ##STR1## wherein R.sub.1 and R.sub.2 may be alkyl, aryl and aralkyl groups, processes for preparing same and the use thereof.

Abstract: Alkenylaromatics I ##STR1## where R.sup.1 is C.sub.1 -C.sub.6 -alkyl, R.sup.2 is H or C.sub.1 -C.sub.10 -alkyl and Ar is aryl, are prepared by reacting a vinylaromatic II ##STR2## with an .alpha.-olefin IIIH.sub.2 C.dbd.CHR.sup.2 IIIin the presence of a nickel-containing catalyst system consisting of (a) a nickel(II) salt of a carboxylic acid, of an alcoholate or of a phenolate, (b) a phosphite or phosphine and (c) an organoaluminum compound V ##STR3## where R.sup.6 is C.sub.1 -C.sub.12 -alkyl, X is halogen and n is 1 or 2, or a mixture of compounds V.

Abstract: The present invention provides a novel process for the preparation of styrene, stilbene, and/or substituted derivatives thereof. The process involves the reaction of an aryl sulfonyl chloride with an olefinic compound in the presence of a catalytic amount of a metal catalyst consisting essentially of palladium.

Abstract: A modified zeolite catalyst composition and process for using the catalyst composition to alkylate toluene (or derivative thereof) with methanol to form e.g. styrene and ethylbenzene (or derivatives thereof) is disclosed. The catalyst composition is exemplified by a type X- or Y-zeolite modified with (1) at least one alkali metal selected from Cs, K, and Rb; (2) at least one metal selected from Mn, Fe, Cu, and Zn; and (3) boron and/or phosphorus.

Abstract: A modified zeolite catalyst composition and process for using the catalyst composition to alkylate toluene (or derivative thereof) with methanol to form e.g. styrene and ethylbenzene (or derivatives thereof) is disclosed. The catalyst composition is exemplified by a type X- or Y-zeolite modified with (1) at least one alkali metal selected from Cs, K, and Rb; (2) at least one metal selected from Li, Ce, Cr, and Ag; and (3) boron and/or phosphorus.

Abstract: Arenes are reacted with allyl chloride to produce allylarenes and 2-chloropropyl- or propenylarenes using a catalyst comprising a metal oxide substrate having tantalum (V) halide/oxide bound to the surface of the substrate.

Abstract: Toluene and formaldehyde produce styrene in a gas phase catalytic process using a basic hydroxide of Group I or II, at formaldehyde to toluene mole ratios of from 0.001 to 0.10.

Abstract: A process for alkylating toluene (or derivative thereof) with methanol to form e.g. styrene and ethylbenzene (or derivatives thereof) using a modified low sodium content zeolite catalyst composition is disclosed. The zeolite catalyst composition is exemplified by a type X- or Y-zeolite modified with potassium and cesium through a sequential exchange.

Abstract: There is disclosed a process for producing polymers that contain pendant unsaturation. The present invention provides a versatile method for the preparation of polymers that contain a wide range of unsaturated pendant groups.

Abstract: Substituted olefins are prepared by the reaction of an organic halide with an olefin in the presence of a catalyst derived from zinc, a triarylphosphine and a nickel salt.

Abstract: A process for preparing a reaction product of a conjugated diolefin and an aromatic hydrocarbon comprises contacting these reactants with a catalyst comprising(1) a phosphorous modified cobalt compound comprising a cobalt compound which is soluble in the aromatic hydrocarbon and a phosphorous compound of the formula ##STR1## wherein R.sup.17, R.sup.18 and R.sup.19 each, independently, is C.sub.1-14 -alkyl, C.sub.2-14 -alkenyl or C.sub.6-14 -aryl(2) a halogen-containing organoaluminum compound; and(3) a modifier of the formula ##STR2## wherein X is chlorine, bromine, or iodine, andR.sub.1 through R.sup.

Abstract: A process for preparing an alkenyl derivative of an aromatic hydrocarbon by reacting a conjugated diolefin with the aromatic hydrocarbon comprises conducting the reaction in the presence of a catalyst comprising:1. a nickel compound which is soluble in the aromatic hydrocarbon;2. an organo-aluminum halide; and3. a modifying agent wherein the modifying agent (3) is a compound of the formulae ##STR1## wherein X in each case is chlorine, bromine or iodine; andR.sup.1 to R.sup.16 independently are each a straight-chain or branched, saturated or unsaturated aliphatic or cycloaliphatic hydrocarbon radical of 1-20 carbon atoms, optionally substituted by 1-41 halogen atoms, ora hydrocarbon aryl radical of 6-14 carbon atoms, optionally substituted by(a) 1-5 straight-chain or branched, saturated or unsaturated, aliphatic or cycloaliphatic radicals, each of 1-10 carbon atoms optionally substituted by halogen atoms, or(b) 1-9 halogen atoms, and wherein R.sup.4 to R.sup.16 can alternatively be hydrogen, andR.sup.1 and R.

Abstract: The present invention relates to a process for the preparation of aromatic or furyl substituted olefins, which comprises reacting an olefinic compound with an aromatic compound or furan compound in the presence of carbon monoxide by using a rhodium carbonyl complex as a catalyst to form a corresponding aromatic or furyl substituted olefin.