Abstract: The present invention provides a process for the preparation of aryl alkyl sulfones and aryl vinyl sulfones. The process comprises reacting an aryl compound with an alkyl sulfonyl fluoride or with a vinyl sulfonyl fluoride in the presence of a catalyst selected from AlCl.sub.3 and AlBr.sub.3. The aryl compound is preferably selected from chlorobenzene, the isomeric xylenes, the isomeric trimethyl benzenes, and mixtures thereof. The alkyl group of the alkyl sulfonyl fluoride preferably contains 1-18 carbon atoms, and the vinyl group of the vinyl sulfonyl fluoride is unsubstituted or substituted with one or more alkyl groups containing 1-5 carbon atoms. The reaction is conducted at a temperature between about -25.degree. C. and 150.degree. C. in the presence or absence of an inert solvent.

Abstract: Purified bis(3,5-dialkyl-4-hydroxyphenyl) sulfone useful for production of improved carbonate polymer is described. This sulfone is precipitated by deammoniation of an aqueous solution and then removed from the supernatant solution. This produces a product having minimal phenol sulfonic impurities. It may be employed to form carbonate polymer having improved physical properties.

Abstract: 4,4'-Dihydroxydiphenyl sulfone is isolated from a mixture of dihydroxydiphenyl sulfone isomers by heat dissolving the mixture in phenol and then cooling the resulting solution thereby allowing 4,4'-dihydroxydiphenyl sulfone to precipitate as an adduct with phenol.

Abstract: A process for the simultaneous preparation of pyrazole and triazoles by reacting a triazoline compound with a basic compound and then oxidizing the product with hydrogen peroxide.The triazoles and pyrazole obtainable by the process of the invention are valuable starting materials for the preparation of dyes, pesticides and drugs.

Abstract: A novel hexahydroisoindole derivative of the formula, ##STR1## which can be produced by dehydration of the corresponding 3a-hydroxy-octahydroisioindole derivative or by reaction of the corresponding 3-chloro-hexahydroisoindole with a thiol sulfonate.The derivative is useful as an intermediate for producing a compound having a substituted or unsubstituted thiol group at 3-position and can be utilized as a herbicide possessing low toxicity to crops and animal.

Abstract: Disclosed is a process for the preparation of 2,2'-bis(4-substituted phenol)sulfides which comprises reacting a 4-substituted phenol with sulfur dichloride in a hydrocarbon solvent at a temperature of from -10.degree. to 40.degree. C. in the presence of a Lewis acid catalyst. For example, 2,2'-bis(4-cumylphenol)-sulfide, i.e. 2,2'-bis(4-.alpha.,.alpha.-dimethyl benzyl-phenol)monosulfide, which is a novel compound can be prepared by reacting 4-cumylphenol with sulfur dichloride in benzene at a temperature of from 0.degree.to 10.degree. C. in the presence of zinc chloride.

Abstract: A process for the preparation of N-(cyclohexylthio)-phthalimide by the reaction of phthalimide with cyclohexylsulphenylchloride in the presence of a base, characterized in that an alkali or alkaline earth metal hydroxide is used as the base.

Abstract: An improved process for the preparation of 5-chloro-indole comprising reacting indoline in a chlorine-inert organic solvent with an acylating agent of an organic carboxylic acid to obtain the corresponding 1-acyl-indoline, reacting the latter in the presence of water and a basic agent with chlorine to form 5-chloro-1-acyl-indoline, subjecting the latter to saponification to obtain 5-chloro-indoline and reacting the latter in a water-immiscible organic solvent by heating with an aromatic nitrocompound in the presence of a finely powdered ruthenium catalyst to form 5-chloro-indole in excellent yields.

Abstract: 2-chloro-4,5-disubstituted-thiazoles have been found to be effective in reducing herbicidal injury to sorghum plants due to the application thereto of acetanilide and thiocarbamate herbicides.

Abstract: 2-Chloro-4,5-disubstituted-thiazoles have been found to be effective in reducing herbicidal injury to sorghum plants due to the application thereto of acetanilide and thiocarbamate herbicides.

Abstract: A compound of the formula: ##STR1## wherein R is a hydrogen atom or a lower alkoxy group and X and Y are, the same or different, each a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a carboxy(lower)alkoxy group or a lower alkoxycarbonyl(lower)alkoxy group, which is useful as a herbicide.

Abstract: Herein is disclosed compounds of the formula ##STR1## in which R.sup.1,R.sup.2,R.sup.3,R.sup.4 and R.sup.5 each is hydrogen or lower alkyl, therapeutically acceptable acid addition salts thereof, processes for their preparation, methods of using the compounds and pharmaceutical compositions. The compounds exhibit dopamine-receptor stimulating activity in a mammal and are useful for treating hyperprolactinemia, galactorrhea, amenorrhea, impotence, Parkinsonism, diabetes, acromegaly, hypertension and other central nervous system disorders.

Abstract: The present invention provides a process for the continuous production of dialkylperoxydicarbonates of the general formula: ##STR1## in which R stands for the same or different, straight-chained, cyclic or branched alkyl radicals containing 6 to 18 carbon atoms, by the continuous reaction of a chloroformic acid ester of the general formula: ##STR2## wherein R has the above-given meanings, in an aqueous medium with hydrogen peroxide and an alkali metal hydroxide at a temperature of from -10.degree. C. to +50.degree. C. in at least two reaction zones connected in series and continuous isolation of the dialkylperoxydicarbonate formed from the solvent-free reaction mixture with the use of a centrifuge, wherein the reaction is carried out in the presence of a surfactant and the dialkylperoxydicarbonate formed is separated in molten form from the alkaline reaction mixture heated to or just above the melting temperature of the dialkylperoxydicarbonate.

Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are alkyl or halo; R.sup.3 is hydrogen or alkyl; Z is halo; and R.sup.4 is alkoxycarbonyl, alkoxy, phenyl, substituted phenyl,a group of the formula ##STR2## wherein R.sup.5 and R.sup.6 are hydrogen, alkyl, alkenyl or alkynyl; a group of the formula ##STR3## wherein R.sup.7 and R.sup.8 are hydrogen or alkyl; A five or six-membered aromatic heterocyclic ring of the formula ##STR4## wherein at least one of V, W, X or Y is an oxygen, sulfur or nitrogen atom, R.sup.9 is alkyl and n is 0, 1, 2 or 3 have herbicidal and plant-growth-regulating activity.

Abstract: Alkanols can be carbonylated with carbon monoxide and oxygen at elevated temperatures in the presence of certain copper salts to form dialkyl carbonates. The invention also covers the carbonylation by recycling of the azeotropic mixture of methanol and the corresponding dimethyl carbonate.

Abstract: The invention covered relates to an improved, solvent-free process for the continuous manufacture of peroxydicarbonate polymerization catalysts. The improvement in the process is the mere decanting of the reaction product through a filtering medium into a separation zone, decanting to a washing zone, decanting to a second separation zone and then taking the product up in an aqueous medium containing a suitable emulsifying agent whereby the resultant initiator or catalyst emulsion can be conveniently and safely stored until ready for use in a polymerization reaction.

Abstract: Inhibition of the formation of color bodies and color-forming materials and other contaminants and/or decolorization of discolored sulfur-containing organic compounds containing divalent sulfur by addition of a small amount of oxalic acid.

Abstract: Disclosed herein are 2,3-dihydro-1H-indole-2-carboxylic acids substituted on the nitrogen with 3-mercapto-2-alkyl-1-oxoalkyl, 3-phosphoryl-2-alkyl-1-oxopropyl, or 2-amino-2-alkyl-1-oxoalkyl derivatives which act as inhibitors of angiotensin converting enzyme and as antihypertensive agents. The compounds of the invention (excluding disclosed intermediates) have the general formula: ##STR1## wherein: n is 1 or 0;R.sub.1 is hydrogen, lower alkyl, aryl or aralkyl;R.sub.2 is hydrogen or lower alkyl;R.sub.3 is hydrogen, lower alkyl or aroyl;R.sub.5 is hydroxy, amino, or lower alkoxy;X is hydrogen, hydroxy, lower alkyl, lower alkoxy, or halogen;Y is hydrogen, lower alkyl, or aryl;Y is hydrogen, lower alkyl, or aryl;R.sub.4 is ##STR2## wherein: L is O, NR.sub.7 or S (where R.sub.7 is hydrogen or lower alkyl);M is R.sub.8, OR.sub.8, SR.sub.8, or NR.sub.9 R.sub.10 (where R.sub.8 is hydrogen, lower alkyl, aryl, or aralkyl; and R.sub.9 and R.sub.10 are, independently, hydrogen, lower alkyl, or aryl);A is O, NR.sub.

Abstract: An enhanced catalytic aromatic carbonate process which comprises contacting a phenol, carbon monoxide, an oxidant, a base, the Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium or platinum, and a manganese tetradentate redox co-catalyst. The resulting aromatic mono- and/or poly-carbonates are useful in the preparation of polycarbonates or as polycarbonates per se, respectively, which can be molded or formed into films, sheets, fibers, laminates or reinforced plastics by conventional techniques.

Abstract: Described are substituted tricyclodecane derivatives having the generic structure: ##STR1## wherein Y is a moiety having a structure selected from the group consisting of: ##STR2## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the dashed lines represents a carbon-carbon double bond; wherein R.sub.1 and R.sub.2 represent hydrogen or methyl with the proviso that one of R.sub.1 and R.sub.2 is hydrogen and the other of R.sub.1 and R.sub.2 is methyl; wherein R.sub.3 is hydrogen, C.sub.1 -C.sub.3 acyl, C.sub.3 or C.sub.4 alkyl or C.sub.3 or C.sub.4 alkenyl; wherein R.sub.4, R.sub.5 and R.sub.6 represent hydrogen or methyl with the additional proviso that one of R.sub.4, R.sub.5 and R.sub.6 is methyl and the other two of R.sub.4, R.sub.5 and R.sub.6 is hydrogen.