Abstract: A process for preparing 1-hexene which comprises trimerizing ethylene in a 1-hexene solvent in the presence of a catalyst system prepared by contacting in a 1-hexene solvent the following components (A), (B), (C) and (D): (A) a chromium-containing compound represented by the general formula: CrXkYm wherein X is a residue of a carboxylic acid, a residue of a 1,3-diketone, a halogen atom or an alkoxyl group, k is an integer of 2 to 4, Y in Ym is an amine compound, a phosphine compound, a phosphine oxide compound, a nitrosyl group or an ether compound and m is an integer of 0 to 6, with the proviso that any two Y's may be same or different; (B) trialkylaluminum or dialkylaluminum hydride; (C) a pyrrole compound or a derivative thereof; (D) a group 13 (IIIB)-halogen compound represented by the general formula: MTtU3-t or a group 14 (IVB)-halogen compound represented by the general formula: M′Tt′U4-t′ wherein M is an atom from the group 13 (IIIB), M′ is an atom from the group 14(IV

Abstract: The present invention provides a novel catalyst system which can be preferably used in the trimerization, oligomerization reaction or polymerization reaction of an olefin, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system. A catalyst system obtained by contacting the following components (A) to (C):(A) a chromium compound,(B) an imine compound, and(C) a metal alkyl compound, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system are disclosed.

Abstract: A process for producing an ethylene-.alpha.-olefin copolymer which includes subjecting ethylene to an oligomerization reaction in the presence of an oligomerization catalyst to convert a part of the ethylene to .alpha.-olefin, and thereby obtaining a reaction solution, a reaction gas or a mixture of the reaction solution and the reaction gas containing .alpha.-olefin and unreacted ethylene; distilling the reaction solution, the reaction gas or the mixture of the reaction solution and the reaction gas to obtain a mixture consisting mainly of ethylene and .alpha.-olefin from the top of the distillation column; and feeding a starting material containing the mixture obtained from the distillation column into a polymerization reactor, thereby copolymerizing the ethylene and .alpha.-olefin in the presence of a polymerization catalyst to obtain an ethylene-.alpha.-olefin copolymer.

Abstract: A heterogeneous catalyst used for producing an oxirane compound by reacting an olefinic compound with an organic hydroperoxide which catalyst is substantially insoluble in the reaction mixture, comprises at least one silicon compound, selected from the group consisting of silica and inorganic silicates, in chemical combination with an oxide or hydroxide of titanium, and is obtained by a process comprising the steps of(a) impregnating the silicon compound with a titanium compound in a solvent for impregnation,(b) removing the solvent for impregnation(c) then washing the remaining composition with a washing solvent and removing the washing solvent, and(d) then calcining the residual composition.

Abstract: The present invention provides a process for producing olefin having a terminal double bond by trimerizing at least one monomer selected from a group consisting of ethylene, propylene, and 1-butene, which comprises using a catalyst comprising a product prepared from(1) component (A): a chromium compound represented by the formula ?1!CrXmYn ?1!wherein X represents carboxylic acid residue, 1,3-diketone residue, halogen atom or alkoxyl group, Y represents amine, phosphine, phosphine oxide, nitrosyl group or ether, m means an integer of from 2 to 4 and n means an integer of from 0 to 4,component (B): a heterocyclic compound having a pyrrole ring unit or an imidazole ring unit, andcomponent (C): an aluminum compound represented by the formula ?2!AlR.sub.k Z.sub.

Abstract: A process for producing propylene oxide which comprises reacting a raw material solution which is a solution of ethylbenzene hydroperoxide in ethylbenzene obtained by liquid phase autoxidation of ethylbenzene with propylene in the presence of a Ti-containing solid catalyst to give propylene oxide, said raw material solution being a solution prepared by washing a solution of ethylbenzene hydroperoxide in ethylbenzene obtained by liquid phase autoxidation of ethylbenzene with an aqueous alkali solution to bring a lactic acid concentration to 5 ppm by weight or less.

Abstract: Any one material selected from (A) sec-butylbenzene substantially free from ethyl hydroperoxide, carboxylic acids and phenol, (B) sec-butylbenzene substantially free from styrenes and (C) sec-butylbenzene substantially free from methylbenzyl alcohol is oxidized to obtain sec-butylbenzene hydroperoxide, which is then decomposed to obtain phenol and methyl ethyl ketone.

Abstract: A process for production of sec-butylbenzene from benzene and n-butene in the presence of a liquid aluminum chloride complex catalyst is disclosed, wherein the amount of aluminum chloride used as a component of the complex catalyst is from 0.3 to 5 wt % of the benzene used, the reaction temperature is from 20.degree. to 90.degree. C., and the weight ratio of isobutylbenzene formed as a by-product to sec-butylbenzene formed is not more than 0.01:1.

Abstract: Process for preparing predominantly Z-substituted allylic alcohols of the formula: ##STR1## wherein R.sup.1 is a straight or branched C.sub.1 -C.sub.25 alkyl group optionally bearing at least one substituent and/or at least one unsaturated linkage and R.sup.2 is a hydrogen atom or a methyl group, which comprises reacting a vinyl epoxide of the formula: ##STR2## wherein R.sup.2 is as defined above with an organolithium compound of the formula above. More particularly, there is disclosed a process for R.sup.1 --Li wherein R.sup.1 is as defined above; particularly, process for preparing .alpha.-santalol of the formula: ##STR3## which comprises reacting 3-methyl-3,4-epoxybutene-1 with lithiomethyl-2,3-dimethyltricyclo[2.2.1.0.sup.2,6 ]heptane.

Abstract: A process for producing aliphatic alcohols by reacting carbon monoxide and hydrogen in a liquid phase in the presence of catalyst components, characterized in that rhodium and a trialkylphosphine represented by the general formula PR.sub.1 R.sub.2 R.sub.3 where each of R.sub.1, R.sub.2 and R.sub.3 is a primary alkyl group, a secondary alkyl group, a tertiary alkyl group or a cycloalkyl group, are used as the catalyst components.

Abstract: A novel substituted diene alcohol represented by a general formula: ##STR1## wherein X represents a group of the formula ##STR2## and a process for the preparation thereof a lower alkoxycarbonyl group of a substituted diene carboxylic acid ester having an E configuration obtained by the treatment of a chrysanthemic acid ester with Bronsted acid or a substituted diene carboxylic acid ester having a Z configuration obtained by the thermal cleavage of a chrysanthemic acid ester is reduced to methylol derivative.

Abstract: In a process for producing a nitrile compound from a corresponding aldehyde exhibited by the general formula (I) and a hydroxylamine inorganic acid saltR.sup.1 CHO (I)or from an aldoxime exhibited by the general formula (II),R.sup.2 CH.dbd.NOH (II)(in the general formulas shown hereinabove, R.sup.1 represents an aryl group having 6 to 9 carbon atoms and R.sup.2 represents an alkyl or alkenyl group having 1 to 9 carbon atoms or an aryl group having 6 to 9 carbon atoms), a process, wherein water produced in the reaction is azeotropically distilled out of the reaction system with the aid of a solvent which makes an azeotropic mixture with water.The nitrile compound is useful as an important intermediate for the synthesis of pharmaceuticals or pesticides.

Abstract: A novel substituted diene alcohol represented by a general formula: ##STR1## wherein X represents a group of the formula ##STR2## and a process for the preparation thereof wherein a lower alkoxycarbonyl group of a substituted diene carboxylic acid ester having an E configuration obtained by the treatment of a chrysanthemic acid ester with Bronsted acid or a substituted diene carboxylic acid ester having a Z configuration obtained by the thermal cleavage of a chrysanthemic acid ester is reduced to methylol derivative.

Abstract: Rose oxide, which is an important olfactive compound valuable in the art of perfumery, is advantageously produced from citronellol through a novel synthetic route comprising(1) anodic alkoxylation of citronellol using as a supporting electrolyte an alkali metal aromatic sulfonate,(2) dealkoxylation of the resulting 2,6-dimethyl-3-alkoxyoct-1-en-8-ol in the presence of a palladium or nickel complex, and then(3) cyclization of the resulting dehydrocitronellol in the presence of an acid.

Abstract: Rose oxide, which is an important olfactive compound valuable in the art of perfumery, is advantageously produced from citronellol through a novel synthetic route comprising(1) anodic alkoxylation of citronellol using as a supporting electrolyte an alkali metal aromatic sulfonate,(2) dealkoxylation of the resulting 2,6-dimethyl-3-alkoxyoct-1-en-8-ol in the presence of a palladium or nickel complex, and then(3) cyclization of the resulting dehydrocitronellol in the presence of an acid.

Abstract: Phenols can be produced in a high yield together with useful aldehydes by cleaving a secondary alkylbenzene hydroperoxide in the presence of sulfur, a sulfur oxide or a phosphorus sulfide and then separating the desired phenols from the cleavage product.