Abstract: Disclosed is a process for the purification of carbon monoxide and/or hydrogen-containing gas streams employed for chemical conversion reactions by contacting such gas feed streams with the oxygenated organic reaction products obtained in the subject chemical conversion reaction.

Abstract: A process for producing 2,6-dichlorobenzyl alcohol, which comprises reacting 2,6-dichlorobenzyl chloride with an acetate-forming agent to form its acetate, followed by hydrolysis to obtain 2,6-dichlorobenzyl alcohol, wherein anhydrous sodium acetate is used as the acetate-forming agent, and a quaternary ammonium salt is added as a phase transfer catalyst during the acetate-forming reaction.

Abstract: Disclosed herein is a process for producing 2,6-dihydroxynaphthalene which comprises oxidizing 2,6-di(2-hydroxy-2-propyl)naphthalene in acetonitrile, 1,4-dioxane or a mixture thereof with hydrogen peroxide in the presence of an inorganic acid or a solid acid at a temperture in the range of room temperature to the boiling point of the solution of the 2,6-di(2-hydroxy-2-propyl)naphthalene in acetonitrile or 1,4-dioxane, the acetonitrile, 1,4-dioxane or a mixture thereof being used in an amount of 3 to 30 ml to one gram of the 2,6-di(2-hydroxy-2-propyl)naphthalene.

Abstract: A process for the preparation of aldehydes by hydroformylation of olefins in the presence of an aqueous solution containing rhodium as a catalyst. The aqueous solution preferably contains rhodium in a concentration of 450 to 800 weight-ppm and sulfonated or carboxylated triarylphosphines as complex ligands in a concentration of 25 to 30% by weight, both based on the aqueous solution.

Abstract: A procedure for producing hydroquinone from a hydrocarbon mixture obtained as a by-product when producing cumene, by selectively oxidizing tertiary alkylaromatics to form hydroperoxides, by separating the dihydroperoxide of p-diisopropylbenzene from the oxidation product by selective crystallization through cooling, and by decomposing the dihydroperoxide of p-diisopropylbenzene with the aid of an acid catalyst to form the hydroquinone.

Abstract: A method of nitrating resorcinol which is selective for the production of the 4,6-dinitro resorcinal isomer. A resorcinol-based starting material is admixed with a nitrating solution from which substantially all nitrogen dioxide and nitrous has been removed. The nitrating solution contains white fuming nitric acid, a nitrosonium ion control agent such as urea, and, optionally, concentrated sulfuric acid. The 4,6-dinitroresorcinal isomer is provided in yields of about 65-85% with minimal production of undesirable side products.

Abstract: According to the present invention there are provided isothiuronium salts of the general Formula I ##STR1## wherein R.sup.1 is C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-6 cycloalkyl, aralkyl or aryl, the said groups being optionally substituted by one or more hydroxy, mercapto and/or halogen;R.sup.2 stands for hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl or C.sub.3-6 cycloalkyl;X represents an organic or inorganic anion/.The compounds and salts of the present invention can be prepared by reacting a compound of the general Formula II ##STR2## with an agent capable of introducing a R.sup.1 group. The compounds of the general Formula I exhibit antitumor and immunostimulant effect and are useful in therapy.

Abstract: A process is provided for producing N-acyl-acyloxy aromatic amine, such as 4-acetoxyacetanilide by reacting a hydroxy-aromatic ketoxime with a carboxylic acid anhydride, e.g. acetic anhydride, in the presence of phosphoric or oxalic acid as a Beckmann rearrangement catalyst. Preferably the ketoxime is prepared by reacting a hydroxy aromatic ketone such as 4-hydroxyacetophone with a hydroxyl amine salt, and the ketone is obtained by the Fries rearrangement of a phenolic ester, e.g. phenyl acetate or the Friedel-Crafts acylation of a phenolic compound, e.g. phenol, with an acylating agent, e.g. acetic acid.

Abstract: Styrene and hydroquinone are reacted to produce (1-phenylethyl) hydroquinone, i.e.

Abstract: A novel derivative of (-)-6,6-dimethylbicyclo [3.1.1]ept-2-ene-2-ethanol (J. P. Bain, J. Am. Chem. Soc. 1946, vol. 68, page 638) is disclosed. The parent composition is marketed e.g. under the name nopol, v. The Aldrich-Europe Catalog Handbook of Fine Chemicals, item 3160-5 nopol 98% 128-50-7.The object of the present invention is the compound of formula (I): 4-(2-hydroxyethyl) -.alpha..alpha.dimethyl-5-hydroxy-3-cyclohexene-1-methanol, with the process for obtaining the same, which consists of the preparation of (-)-(6,6-dimethylbicyclo[3.1.1]ept-2-ene-2-ethanol epoxide, followed by hydration of the above compound. Finally, this invention comprises the pharmaceutical compositions containing the compound of formula (I) which have a mucosecretolytic pharmacological activity.

Abstract: Certain triarylphosphine rhodium carbonyl hydride complexes(Ar.sub.3 P).sub.3 Rh(CO)H (I) and (Ar.sub.3 P).sub.2 Rh(CO).sub.2 H (II)are selective and stable catalysts of high temperature olefin hydroformylation. The critical factors are the maintenance of a sufficient CO partial pressure, above 25 psia, and the provision of a high excess of triarylphosphine ligand concentration, at a minimum of 1 mole per kg. To provide a high ratio of n- to i-aldehyde products of 1-olefin hydroformylation, the concentration of the tris-phosphine complex (I) is maximized. In a continuous product flashoff operation of the present process, the major high boiling solvent components are the excess phosphine ligands and monoalcohol and monoester by-products.A combined isomerization-hydroformylation process is also disclosed for the selective conversion of internal linear olefins to terminal n-aldehydes. In this process, the concentration of the bis-phosphine complex (II) is minimized.

Abstract: A rhodium catalyzed hydroformylation process carried out in the presence of free triarylphosphine ligand and free organic tertiary bisphosphine monooxide ligand, and catalytic precursor solutions for said process.

Abstract: A process for producing linear aldehydes or alcohols from olefins using a mixed transition metal hydroformylation catalyst wherein the catalyst comprises a mixture of transition metal compounds wherein the first component is an anionic transition metal catalyst having a charge of at least -2. The formula of the anionic compound is generally defined as M.sup.+n [H.sub.y A.sub.x L.sub.z ].sup.-n wherein A represents Fe, Ru, Os, W, Cr, Co, Rh, Ir or Mo, M is a cationic species, n is an integer greater than or equal to 2, x is an integer greater than or equal to 1, y is an integer greater than or equal to 0 and z is an integer generally corresponding to the number of available coordination bonding sites of A. The second component is a Group VIII compound, preferably a halide or carbonyl of the Group VIII compound. These compounds exhibit high selectivity toward linear products.

Abstract: The invention is a process for preparing alkylidenebis(dibromophenol) comprising(a) dissolving alkylidenediphenol in between about 17 and 25 moles of methanol for each mole of alkylidenediphenol wherein the methanol has less than 5 percent by weight of water therein;(b) adding to the solution between about 4.0 and 4.1 moles of bromine per mole of alkylidenediphenol at an elevated temperature;(c) adding water to precipitate the alkylidenebis(dibromophenol) remaining in solution after the addition of the bromine in step (b) is completed; and(d) separating the alkylidenebis(dibromophenol) from the methanol solution.

Abstract: A hydroformylation process for producing aldehydes using a bisphosphine monooxide ligand and catalytic precursor solutions for said process.

Abstract: A process for preparing -trimethylhydroquinone by contacting 3,5,5-trimethyl-2-cyclohexene-1,4-dione with an acid catalyst in the vapor phase.

Abstract: Butylation of a mixture of xylenols and trimethylphenols gives a product which is suitable for use as a stabilizer for polyvinyl chloride. The material can be added to the reactor during polymerization as a short-stopper and retain effectiveness as a stabilizer in the finished polymer.

Abstract: Chlorodibenzo-p-dioxin impurities are removed from a polychlorophenol that contains at least one chlorodibenzo-p-dioxin as an impurity by preparing an aqueous solution of a water-soluble alkaline salt of the polychlorophenol, mixing the aqueous solution with cyclohexane to extract the dioxins therefrom, decanting the purified aqueous solution from the cyclohexane phase, neutralizing the purified aqueous solution to precipitate the purified polychlorophenol, and separating the precipitate.

Abstract: An improvement in the process for production of formaldehyde wherein a vapor phase mixture of methanol and air are passed over a silver catalyst, comprising the incorporation of a small amount of a halogen-containing compound into the mixture.

Abstract: Two molecules of mono-substituted acetaldehyde having the following general formula (I) and one molecule of organic halide having the following general formula (II) are reacted in an alkaline aqueous solution in the presence of a phase transfer catalyst whereby a .beta.-.gamma.-unsaturated aldehyde having the general formula (III) as shown in the following reaction scheme (A) is obtained directly from the monosubstituted acetaldehyde without forming an .alpha.,.beta.-unsaturated aldehyde ##STR1## wherein R.sub.1 is straight chain or branched chain alkyl, alkenyl, cycloalkyl or aryl, R.sub.2 is allyl, substituted allyl, propargyl, substituted propargyl, benzyl or substituted benzyl, and X is halogen.