Abstract: An oxidation-reducing reagent for a wet desulfurization process, which comprises (a) one or more compounds selected from the group consisting of salts of substituted anthraquinonesulfonic acids of the general formulas: ##STR1## wherein M stands for a sodium atom, a potassium atom or an ammonium group, and n is an integer of 1 or 2, or (b) a mixture of a salt of anthraquinone-2,7-disulfonic acid and one or more compounds shown by the general formula (I) and/or (II), as well as a process for preparing the compounds of the general formulas (I) and (II).

Abstract: The invention discloses a process for the coloration of organic material of high molecular weight, wherein the colorant is a compound of the formula ##STR1## wherein Hal represents a chlorine or bromine atom, X represents a hydrogen or halogen atom, an alkyl or alkoxy group of 1 to 6 carbon atoms, an alkoxycarbonyl group of 2 to 7 carbon atoms, a phenyl group or a phenoxy group which is unsubstituted or substituted by chlorine atoms or methyl groups, and Y and Z represent hydrogen or halogen atoms or methyl groups.

Abstract: Compounds having the general formula: ##STR1## where A is a C.sub.1 -C.sub.4 straight or branched chain alkylene radical, B is a --SO.sub.3 M, --CO.sub.2 M, --PO.sub.3 HM or --PO.sub.3 M.sub.2 grouping,M is hydrogen, or a cation giving a water-soluble derivative,R is hydrogen, a cation giving a water-soluble derivative or a C.sub.1 -C.sub.4 straight or branched alkyl, R.sub.1 is hydrogen, methyl or --COOH, and m is 0 or 1 and processes of preparing them.

Abstract: This disclosure describes 1-(aminoalkylamino)-5,8-dihydroxy-4-substituted-anthraquinones useful as chelating agents and for inhibiting the growth of transplanted mouse tumors.

Abstract: The present invention relates to anionic dyestuffs of the 1-amino-4-aryl- or -4-alkylamino anthraquinone series which are unsubstituted in the 3-position and bear in the 2-position an arylalkyleneoxy group, and in which at least one aryl group bears a sulpho group, with the proviso that when the substituent in the 4-position is alkylamino such alkyl is linear, branched or cyclic and contains at least 9 carbon atoms and the sum of the carbon atoms of the alkylamino group in the 4-position and the alkylene group in the 2-position is at least 12, which dyestuffs are in the free acid or salt form.

Abstract: Daunomycin derivatives of the formula: ##STR1## wherein R.sub.1 is a lower alkyl having from 1 to 4 carbon atoms and R is a hydrogen atom or a trifluoroacetyl group are useful in treating certain mammalian tumors.

Abstract: Daunomycin derivatives of the formula: ##STR1## wherein R.sub.1 is a lower alkyl having from 1 to 4 carbon atoms and R is hydrogen or a trifluoroacetyl group are useful in treating certain mammalian tumors.

Abstract: Water-soluble anthraquinone dyes which bear one or two 3,5,5-trimethylcyclohexylamino groups in the 1- and/or 4-positions and one or two -SO.sub.3 H groups bound either directly to a carbon atom of an aromatic ring or indirectly over an oxygen atom to a carbon atom of an aliphatic chain.

Abstract: Disclosed are novel cyclic terpenoid amines which can be prepared by cyclizing the corresponding acyclic terpenoid amine.

Abstract: New anthraquinone compounds of the formula ##STR1## in which Y denotes chlorine, bromine, --O--R or ##STR2## R denotes aryl, R.sub.1 and R.sub.2 denote hydrogen, alkyl, cycloalkyl or aryl andX.sub.1 and X.sub.2 denote hydrogen, halogen or nitro,are obtained when the corresponding 2-sulphonic acids are treated with inorganic acid halides and the products are then optionally treated with alcohols or amines. The compounds I are valuable dyestuffs for dyeing polyester fibres and starting materials for the preparation of such dyestuffs.

Abstract: Anti-rust motor fuel composition comprising a major proportion of a mixture of hydrocarbons boiling in the gasoline boiling range, a minor amount of a polymeric acid comprising a dimer or trimer of a dienoic or trienoic acid containing from 16 to 18 carbon atoms and a minor amount of an aminoalkyl or polyalkyl polyamine imidazoline derivative of a hydrocarbon-substituted gamma or delta lactone reaction product.

Abstract: A process for the reductive removal of halogen atoms from amino-, acylamino- or hydroxyanthraquinones, said halogen atoms being bonded in the .alpha.-position and/or ortho-position to amino, acylamino or hydroxyl groups, which comprises carrying out the reductive removal in basic medium with hydrazine or hydrazine derivatives.

Abstract: A process has been developed for the preparation of mixtures of dinitroanthraquinones with a high content of 1,5- and 1,8- dinitroanthraquinone by nitration with nitric acid in the presence of sulphuric acid with heating wherein anthraquinone, 1-nitroanthraquinone or a mixture of them is treated with about 1.5 to about 2.5 times the amount by weight of nitric acid, relative to the feed material, in the presence of about 0.75 times to twice the amount by weight, relative to nitric acid, of sulphuric acid, the temperature first being kept in the range from room temperature to about 50.degree. C. until at least 50% of the starting material or materials has been dinitrated, then adjusting the temperature to about 50.degree. C. to about 70.degree. C. to complete the dinitration.

Abstract: A method of synthesizing phenoxyanthraquinones in the absence of excess phenol, water-miscible alcohols or polar aprotic solvents. Phenoxyanthraquinones are synthesized in high yield and purity by treatment of the corresponding chloro- or nitroanthraquinone with an equivalent of alkali metal phenoxide, particularly potassium phenoxide in a liquid aromatic solvent which is a chloro-substituted benzene, a lower alkyl-substituted benzene, or a loweralkyl-chloro-substituted benzene. The use of the inventive solvents results in high yields of readily isolable, substantially pure product. The used solvent is readily recoverable without the pollution potential of excess phenol or difficultly recoverable water-miscible solvents.

Abstract: Process for preparing 2-t-alkylanthracene, which process comprises contacting and reacting, with good mixing, at a temperature of at least 110.degree. C., anthracene and a branched-chain alkylating agent, the alkylating moiety of which contains at least four carbon atoms, in the presence of a catalyst selected from hydrocarbonsulfonic acids which are free of nonaromatic unsaturation, organic carboxylic acids having a K.sub.a of 0.6 to 0.001, acid zeolites, amorphous silica-aluminas, and polymeric arenesulfonic acid resins, to give a product mixture of which the major constituent is 2-t-alkylanthracene.

Abstract: Hexamethylene.bis-dicyandiamide is safely prepared in good yield and desired purity by a novel method which comprises reacting N-cyano-O (or S)-alkyl-iso (or isothio) urea with hexamethylenediamine. The desired product is useful as an intermediate of chlorhexidine which is an antibacterial agent.

Abstract: The invention relates to a process for the manufacture of an aminohydroxyanthraquinone of the formula ##STR1## wherein both of X are hydrogen or one X is --NH.sub.2 and the other is --OH and Z is hydrogen, C.sub.1 -C.sub.4 alkyl or carboxyl, with the proviso that, if Z is C.sub.1 -C.sub.4 alkyl or carboxyl, both of X must be hydrogen, which process comprises reacting a nitroanthraquinone of the formula ##STR2## wherein both of Y are hydrogen or one Y is --NO.sub.2 and the other is hydrogen and Z is as defined for formula (1), with the proviso that, if Z is C.sub.1 -C.sub.4 alkyl or carboxyl, both of Y must be hydrogen, in an aprotic dipolar solvent, with an alkali metal azide or alkaline earth metal azide, in the temperature range between 0.degree. and 30.degree. C. The reaction products are disperse dyes or intermediates for obtaining vat dyes and disperse dyes.

Abstract: A detergent additive aminoamide, prepared by reacting a polycarboxylic amino acid with alkylamines, is combined into fuel for an internal combustion engine or lubricating oil as a composition suitable for reducing deposits in an internal combustion engine. In an embodiment of the invention, the aminoamide is further combined with a sulfonic acid to obtain a fuel detergent of improved operability.

Abstract: A detergent additive imidazoline prepared by reacting carboxylic acid with polyamine is combined into fuel for an internal combustion engine or lubricating oil as a composition suitable for reducing deposits in an internal combustion engine. In an embodiment of the invention, the imidazoline is further combined with a sulfonic acid to obtain a fuel detergent of improved operability.

Abstract: Process for isolating dyestuffs of the formula ##STR1## wherein R.sub.1 -R.sub.12 denote hydrogen, alkyl, halogenoalkyl, halogen, alkoxy, alkylmercapto, alkylsulphonyl, alkoxysulphonyl, alkylcarbonyl, alkoxycarbonyl, nitro or cyano, X and Y denote ##STR2## and R.sub.13 and R.sub.14 denote hydrogen, alkyl, halogenoalkyl, cyanoalkyl, cycloalkyl, aryl or aralkyl, and whereinX and R.sub.2, Y and R.sub.10, R.sub.1 and R.sub.2, R.sub.5 and R.sub.6 and R.sub.9 and R.sub.10 can form a 5- or 6-membered ring and A.sup.(-) denotes an anion,by dissolving the crude dyestuffs, which have been obtained by known processes, in aqueous acids, adding an organic solvent which is immiscible with water or of limited miscibility with water and then isolating the dyestuffs in a known manner.