Abstract: There is presented a synthetic process for the production of anthracyclinones, the aglycones of the anthracyclines. Also disclosed are novel intermediates in the above process. The end product aglycones may thereafter be utilized to produce biologically useful products such as carminomycin or adriamycin.

Abstract: A process for the manufacture of 1,2-diaminoanthraquinone, which comprises reacting 1-nitro-2-acetylaminoanthraquinone with hydrazine or hydroxylamine, or with derivatives thereof, in protic solvents.

Abstract: A process for the preparation of pigmentary forms of bromoisoviolanthrone, wherein the leuco compound is oxidized in an aqueous alkaline medium, in the presence of a surfactant, at from 10.degree. to 100.degree. C., with exposure to shearing forces.The pigment obtained gives full-shade colorations which are very transparent and very brilliant, while in white reductions very deep colorations are obtained.

Abstract: 5-amino-1,2,3,4-tetrahydroanthraquinone, as a new industrial product, is disclosed together with its preparation by reduction from 5-nitro-1,2,3,4-tetrahydroanthraquinone.

Abstract: Process for the preparation of benzanthrones of the formula ##STR1## in which R designates alkyl or halogen andn represents 0, 1, 2 or 3, characterized in that anthraquinones of the formula ##STR2## in which R and n have the meaning indicated above, are reacted with acrolein or compounds from which acrolein can be formed under the reaction conditions, in the presence of phosphorus or phosphorus compounds having a reducing action, in relatively highly concentrated sulphuric acid at elevated temperature, and the reaction mixture is worked up in a manner which is in itself known to give the benzanthrones of the formula (I).

Abstract: This disclosure describes metal chelates of symmetrical 1,4-bis(substituted-amino)-5,8-dihydroxy-anthraquinones useful for inhibiting the growth of tumors and as colorants or dyes.

Abstract: Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock agents comprising selected acetylenic amine compounds.

Abstract: Liquid hydrocarbon fuel compositions are provided containing antiknock quantities of ashless antiknock agents comprising selected N-substituted amine derivatives of 3-hydroxypyridine compounds.

Abstract: Cationic anthraquinone dyestuffs of the formula ##STR1## wherein R.sub.1 denotes hydrogen, alkyl or cycloalkyl,R.sub.2 denotes hydrogen, alkyl or bromine,R.sub.3 denotes alkylene,R.sub.4 and R.sub.5 denote alkyl, aryl or aralkyl,R.sub.6 denotes alkyl or aralkyl andX.sup..crclbar. denotes an anion,and the substituents mentioned can in turn be substituted by non-ionic radicals, are prepared by reacting anthraquinones of the formula ##STR2## with amines of the formula ##STR3## in the presence of a proton acceptor and of copper salts as a catalyst, in a solvent mixture consisting of 50 to 90% of one or more aprotic, non-polar or slightly polar solvents and 10 to 50% of one or more protic or aprotic, polar solvents, trapping the acid formed during the reaction by bases which do not precipitate the catalyst and then quaternizing the product, without intermediate isolation.

Abstract: There are described new violet water-soluble anthraquinone dyes corresponding to the formula ##STR1## wherein R.sub.1 represents a straight-chain or branched-chain alkyl group having 4 to 8 carbon atoms,R.sub.2 and R.sub.3 independently of one another represent a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms,R.sub.4 represents hydrogen, an optionally acylated amino group, or a fibre-reactive radical bonded by way of an amino group,R.sub.5 represents hydrogen or a straight-chain or branched-chain alkyl group having 1 to 4 carbon atoms, and the phenyl ringsA and/or B can be further substituted, with the proviso that one X of the symbols X.sub.1 and X.sub.2 represents the --SO.sub.3 H -- group, and the other X represents hydrogen; and also a process for producing these dyes by means of a phenol melt; and the use of the new water-soluble anthraquinone dyes for dyeing and printing textile materials, particularly natural and synthetic polyamide materials.

Abstract: 2,3-Dicyano-anthraquinones of the formula ##STR1## wherein R denotes hydrogen, alkyl or cycloalkyl, are obtained in good yields and high purity by reacting compounds of the formula ##STR2## wherein X denoted hydrogen or the sulphonic acid group, with cyanides in formamide or N-methylformamide as solvents, and if appropriate oxidizing agents and heavy metal catalysts.

Abstract: 1-hydroxyethyl-1-alkyl-2-imidazolines, bis-imidazolines and their derivatives impart good detergent properties to liquid hydrocarbon fuels containing a minor effective amount thereof.

Abstract: Specified copolymers of tert-butylstyrene are dissolved in a liquid aliphatic hydrocarbon fuel, especially an aircraft fuel, by the steps of (i) blending the finely-divided copolymer with a non-solvent hydroxylic liquid miscible with the fuel, (ii) mixing the blend into the fuel so as to give a copolymer concentration of 0.1-1% by weight, and (iii) dissolving in the fuel so treated an amino compound in an amount of 0.01-0.6 mole per 100 g of copolymer present. The copolymers thus dissolved impart to the fuel a resistance towards mist formation when the fuel is subjected to conditions of shock.

Abstract: A process for preparing hydroxyanthraquinones from the corresponding nitroanthraquinones is provided. A nitroanthraquinone is reacted with a metal salt selected from sodium formate, potassium formate, sodium carbonate and potassium carbonate, in a specific reaction medium at a reaction temperature and for a time sufficient to convert the nitroanthraquinone to the corresponding hydroxyanthraquinone.

Abstract: A benzoquinone and hydrocarbyl amine reaction product having detergent and corrosion inhibiting properties for fuel and lubricant compositions is provided.

Abstract: A process for selective propylation of the benzene content of hydrocarbon mixtures wherein the mixture is brought into contact with propylene in the presence of a crystalline zeolite catalyst having a silica to alumina mole ratio of at least about 12 and a constraint index of from 1 to 12, to produce isopropylbenzene and diisopropylbenzene. The reaction may be carried out at temperatures of from about 100.degree. C. to the critical temperature of the benzene and at pressures ranging between about 10.sup.5 N/m.sup.2 and 6.times.10.sup.6 N/m.sup.2.

Abstract: The present invention provides novel 19-hydroxy-6a-carba-PGI.sub.2 sulfonylamides which are useful for pharmacological purposes, e.g., anti-asthmatic indications.

Abstract: A solution of a halogenated hydrocarbon when added in amounts of from about 1 to 2 parts per thousand by volume to hydrocarbon fuels improves combustion and increases fuel efficiency. The presence of a small amount of a hydroperoxide in combination with the halogenated hydrocarbon improves the starting characteristics of diesel fuel and further improves combustion efficiency.

Abstract: Unwanted settling in a composition comprising a suspension of fine particles of coal in fuel oil is eliminated or substantially reduced by adding an effective amount of a fatty acid ester of a polyoxypropylene-polyoxyethylene copolymer. The fatty acid has about 12 to 22 carbon atoms in the acyl group. The polyoxyethylene groups and polyoxypropylene groups have a total molecular weight of about 500 to 2000 and contain 0 to about 60 percent by weight polyoxyethylene groups.

Abstract: The present invention relates to 1-adamantyl-3-(phenylsulfonyl)thioureas of the formula ##STR1## wherein R is lower alkyl, amino or lower alkanoylamino to methods of preparation thereof and to their use in the treatment and prevention of viral infections in mammalian and avian hosts.