Sumitomo Chemical Company, Limited

Atlantic Richfield Company

Arco Chemical Technology, L.p.

Masahiro Usui

Kazuo Kimura

Gohfu Suzukamo

Masami Fukao

Yasuhiko Higashio

Teruaki Mukaiyama

Takuo Hibi

Fujio Masuko

Kazuhiko Saigo

Mitsuhisa Tamura

Takashi Deguchi

Kiyoshi Iwanaga

Toshio Nakayama

Hiroyuki Umida

Hirooki Nagaoka

Eiichiro Shimada

An alkyl-substituted hydrocarbon is prepared by alkylating an aromatic hydrocarbon having at least one hydrogen atom at an alpha-position in a side chain with an olefin in the presence of a solid base which is obtainable by heating an alumina, an alkali metal hydroxide and an alkali metal or an alumina containing at least 1.3% by weight of water and an alkali metal in an inert gas atmosphere at a specific temperature as a catalyst.

Process for preparing alkyl-substituted aromatic hydrocarbons

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.

Process for producing phenol and methyl ethyl ketone

Process for preparing alkyl-subtituted aromatic hydrocarbons

Production of novel hydrocarbon-soluble salts, especially adapted for use as catalysts in the epoxidation of olefinic compounds with an organic hydroperoxide, by reaction of an ammonium molybdate with a carboxylic acid in the presence of an organic amine at specified elevated temperatures while removing water.

Production of hydrocarbon-soluble salts of molybdenum for epoxidation of

A continuous process for producing 5-vinyl-2-norbornene, useful as the raw material of 5-ethylidene-2-norbornene used as a termonomer for EPDM, from a mixture of cyclopentadiene and butadiene or from a mixture of cyclopentadiene and dicyclopentadiene and butadiene by the Diels-Alder reaction which process comprises adding from 10 to 10,000 ppm of N,N-diethylhydroxylamine or 4-oxo-2,2,6,6-tetramethylpiperidine-1-oxyl relative to the total weight of cyclopentadiene and butadiene or of a mixture of cyclopentadiene and dicyclopentadiene and butadiene, continuously introducing the resulting mixture into a pressure reaction vessel, allowing them to react in the absence of any gas phase portion within the said pressure reaction vessel, and continuously withdrawing the reaction product.

Continuous process for producing 5-vinyl-2-norbornene

5-Ethylidene-2-norbornene with high quality is effectively prepared by isomerization 5-vinyl-2-norbornene containing 1 ppm to 0.5% by weight of 4-vinylcyclohexene in the presence of at least one catalyst selected from the group consisting of a solid base catalyst which is prepared by reacting alumina, an alkali metal hydroxide and an alkali metal in a temperature range of 200.degree. to 500.degree. C. and a solid base catalyst which is prepared by reacting water-containing alumina and an alkali metal in such an amount that exceeds a molar equivalent of water contained in alumina at a temperature in a range between a melting point of the alkali metal and 500.degree. C. in an inert gas atmosphere.

Process for preparing 5-ethylidene-2-norbornene with high quality

A method of purification of crude .beta.-phenylethyl alcohol to give a highly pure .beta.-phenylethyl alcohol suitable as a perfume, which comprises subjecting the crude .beta.-phenylethyl alcohol to azeotropic distillation in the presence of an azeotropic solvent selected from water, an alkylene glycol, an alkylene glycol monoalkyl ether and a mixture of two or more kinds of these solvents, or extractive distillation in the presence of an extractive solvent selected from glycerine, an alkylene glycol, a polyalkylene glycol, an alkylene glycol monoalkyl ether, a polyalkylene glycol monoalkyl ether and a mixture of two or more kinds of these solvents.

Method of purification of .beta.-phenylethyl alcohol

An improved process for producing an ester from a carboxylic acid and an alcohol which comprises reacting said carboxylic acid with said alcohol by the use of a 1-substituted-2-halopyridinium salt or a 1-substituted-2-haloquinolinium salt as a condensing agent in the presence of a hydrogen halide captor. According to this process, various esters, even if they have some steric hindrances, may be obtained in good yields.

Process for the preparation of esters

An improved process for producing a large ring lactone which comprises subjecting a hydroxy acid to intramolecular condensation by the use of a 1-substituted-2-halopyridinium salt or a 1-substituted-2-haloquinolinium salt as a condensing agent in the presence of an acid captor in an anhydrous organic solvent. According to this process, a variety of lactones, even complex lactones such as macrolides can be obtained in good yields.

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Chiba, Japan

Masahiro Usui