Abstract: The azo dyes of the formula I ##STR1## where X.sup.1 is for example hydrogen or (C.sub.1 to C.sub.6)alkyl,X.sup.2 is cyano or nitro,X.sup.3 is for example hydrogen or (C.sub.1 to C.sub.4)alkoxy,X.sup.4 is for example (C.sub.1 to C.sub.4)alkoxy, chlorine or hydrogen,R.sup.1 is hydrogen or (C.sub.1 to C.sub.6)alkyl,R.sup.2 is hydrogen or (C.sub.1 to C.sub.6)alkyl andR.sup.3 is for example (C.sub.1 to C.sub.8)alkyl,are highly suitable for dyeing and printing hydrophobic fiber materials.

Abstract: The monoazo compound represented by formula I is excellent in compatibility with, solubility in, and coloring power for, almost all water-immiscible organic liquids, has a low melting point, and is suitable for use to color molten plastics, synthetic fiber spinning solutions, etc., and to color thermal transfer ink. ##STR1## wherein R represents sec-butyl; Cp represents a coupling component residue.The dense solution of at least one kind of said monoazo compound in a hydrocarbon solvent diffuses and dissolves quickly and uniformly in coloring subjects such as petroleum products, and is capable of coloring fuel oil etc. to a desired distinguishable color density with small amounts.

Abstract: Compounds of the formula ##STR1## wherein ring A, ring B, ring D, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6,R.sup.11, R.sup.12, R.sup.13, E, G, X and P are as defined below. The compounds of formula I are cholinesterase inhibitors and are useful in enhancing memory in patients suffering from dementia and Alzheimer's disease.

Abstract: Aromatic heterocyclic derivatives have the formula ##STR1## wherein R.sub.1 represents (i)--CH.sub.3, (ii)--CH.sub.2 OH or (iii) ##STR2## wherein R.sub.3 represents hydrogen, --OR.sub.4 wherein R.sub.4 represents hydrogen, alkyl having 1-20 carbon atoms or mono- or polyhydroxyalkyl or R.sub.3 represents ##STR3## wherein r' and r" represent hydrogen, lower alkyl or together form a heterocycle, R.sub.2 represents hydrogen or --CH.sub.3 and Ar represents ##STR4## wherein R.sub.6 is hydrogen or alkyl having 1-10 carbon atoms and R.sub.7 represents alkyl having 4-12 carbon atoms or cycoalkyl, Y is CH or a nitrogen atom and X represents oxygen, sulfur or --N--R.sub.8 when R.sub.8 represents hydrogen, lower alkyl or lower alkoxycarbonyl, with the proviso that (i) when Y is CH and X is oxygen or sulfur Ar is other than C and (ii) when Y is nitrogen and X is oxygen, Ar is other than (C) or (D) in which R.sub.6 is alkyl having 1-4 carbon atoms and R.sub.7 is branched alkyl having 4-12 atoms.

Abstract: Reactive dyestuffs which, as the free acid, have the following formula ##STR1## in which K is ##STR2## the bonding to the triazinyl radical taking place in each case via the amino function of K, and the remaining substituents have the meaning given in the description, are suitable in particular for the dyeing and printing of natural and synthetic OH- and/or amido-containing materials.

Abstract: Reactive dyes of the formula ##STR1## where n is 0 or 1R.sup.1, R.sup.2 and R.sup.3 are in each case hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl,R.sup.4 is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkylsulfonyl, phenylsulfonyl or a radical of the formula ##STR2## L is a bridge member, A is unsubstitued or substituted C.sub.2 -C.sub.8 -alkylene,Y is vinyl or a radical of the formula --CH.sub.2 --CH.sub.2 --Q, Q being a group which can be removed under alkaline reaction conditions, andD is phenyl or naphthyl, it being possible for these radicals to be substituted,and a process for preparing reactive dyes by oxidation of the abovementioned compounds are described.

Abstract: Novel terpene amino alcohols having an antiallergic activity or an activity of improving cerebral function are provided. Also provided are medicinal uses of the alcohols.

Abstract: The process of the present invention is characterized in that when a carbonic acid diester is produced by catalytically reacting carbon monoxide with a nitrous acid ester in the presence of a solid catalyst, a small amount of a chloroformic acid ester is mixed into a material gas containing the carbon monoxide and the nitrous acid ester and thereby the catalyst employed can be maintained at a high activity condition over a long time period, and the carbonic acid diester can be produced stably over a long time period at a high reaction rate and with a high selectivity.

Abstract: A diaryl carbonate is produced by transesterification of a dialkyl carbonate, such as dimethyl carbonate, with an aromatic hydroxy compound, such as phenol, in three successive reaction zones. A transesterification catalyst, such as a titanate ester or ester mixture is used in each zone. Conditions are selected to maximize formation of alkyl aryl carbonate in the first and second reaction zones, while conversion to diaryl carbonate is favored in the third reaction zone. The vaporous mixture from the first two reaction zones is a mixture containing alkyl alcohol, dialkyl carbonate, alkyl aryl carbonate and aromatic hydroxy compound. This mixture is separated in an alkyl alcohol recovery zone by distillation in the distillation columns to produce useful recycle streams.

Abstract: A novel process for preparing enantiomerically-pure 3-methyl-5-(1-(C.sub.1 -C.sub.3 -alkyl)-2-pyrrolidinyl)isoxazole in high yield, wherein a protected pyrrolidine or 2-oxo-pyrrolidine starting material is reacted with a suitable organic anion and a resulting beta-keto oxime intermediate is cyclized and dehydrated, as well as intermediates useful in the preparation thereof.

Abstract: Aminoazo dyes are prepared from the corresponding N-sulfomethylated aminoazo dyes by aqueous acid hydrolysis in the presence of amidosulfuric acid, urea or mixtures thereof.

Abstract: The present invention provides an N-substituted acylamino acid compound of the formula: ##STR1## a process for their production and pharmaceutical uses, and intermediates useful for their production.

Abstract: The invention relates to a method of producing (meth)acryloylthio esters of general formula I ##STR1## where R represents hydrogen or methyl, and R.sup.1 represents a phenyl group, a substituted phenyl group, a C.sub.1-24 alkyl group, a substituted C.sub.1-24 alkyl group, a cyclic C.sub.3-24 alkyl group;comprising reacting (meth)acrylic acid anhydride (formula II) ##STR2## where R represents hydrogen or methyl, with at least the stoichiometric amount with a thiol or thiolate of formula IIIR.sub.1 --S--M, (III)where M represents hydrogen or a metal cation, andR.sub.1 is defined as above.

Abstract: The present invention relates to a sterile, stable vacuum dried crystalline amifostine composition and, optionally, pharmaceutically acceptable excipient(s). Typically, the crystalline compositions of the present invention exhibit enhanced stability at temperatures ranging from about 4.degree. C. to about ambient temperature for a period of at least 2 years relative to existing solid vacuum dried amorphous amifostine preparations. The reconstituted compositions of the present invention are suitable for administration to humans as a radio- or chemoprotecting agent.

Abstract: The fibre-reactive dyes of the formula ##STR1## where the variables are each as defined in the claims, are suitable in particular for dyeing nitrogen-containing and hydroxyl-containing fibre materials.

Abstract: A heterocyclic compound of the formula, ##STR1## wherein A and B are each hydrogen, halogen, alkyl or alkoxy, R.sup.1 is alkylene having upto 6 carbon atoms, X is direct linkage or divalent group such as --O--, --S--and the like, T and U are each hydrogen or alkyl, l is 0 or 1 to 3, Q is 5-, 6- or 7- membered saturated or unsaturated heterocyclic residue, and Y is hydrogen, halogen, alkyl, alkoxy or ##STR2## and B are taken together with each other to form methylene-dioxy, which is useful for dyeing or printing hydrophobic fiber materials with superior dyeability to give a dyed or printed product of a red color excellent in fastness properties, particularly those such as washing fastness.

Abstract: Reactive dyestuffs have the following formula ##STR1## in which D is the radical of an organic dyestuffB is a direct bond or a bridging member on a ring C atom of an aromatic-carbocyclic or on a ring C atom or N atom of an aromatic-heterocyclic ring in D,R.sub.a, R.sub.b, identical or different, are H, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkyl substituted by OH, CN, CO.sub.2 H, OSO.sub.3 H or SO.sub.3 H,U is Cl, F or a pyridinium radical which is unsubstituted or substituted by CO.sub.2 H, CONH.sub.2, SO.sub.3 H or C.sub.1 -C.sub.4 -alkyl,W is straight-chain or branched C.sub.1 -C.sub.6 -alkylene,Y is CH.dbd.CH.sub.2 or CH.sub.2 --CH.sub.2 --X, in whichX is a radical which can be eliminated by alkali,V is H, halogen, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.3 -alkyl, CN, COOH, CONH.sub.2, SO.sub.3 H.

Abstract: A process for the continuous reaction of halogenopyrimidines with amines, a halogenopyrimidine and an aqueous amine solution or suspension being passed into a reactor and the reaction product being subsequently conducted away, is described, characterized in that the starting materials are introduced into the reactor simultaneously and continuously with intensive mixing.

Abstract: Azo dyes of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, X, Y and n are as defined in claim 1, give dyeings of good fastness properties on nitrogen-containing or hydroxyl group containing fibre materials.

Abstract: The invention relates to a process for the enantioselective preparation of L-phosphinothricin (L-Ptc) and derivatives of the formula I ##STR1## in which R.sup.1 is H, (C.sub.1 -C.sub.6)-alkyl, (C.sub.1 -C.sub.4)-haloalkyl, (C.sub.3 -C.sub.6)-cycloalkyl or (subst.) phenyl-(C.sub.1 -C.sub.4)-alkyl, R.sup.2 is hydrogen, formyl, [(C.sub.1 -C.sub.6)alkyl]carbonyl, [(C.sub.1 -C.sub.6)alkoxy]carbonyl, (subst.) benzyloxycarbonyl, (C.sub.1 -C.sub.6)-alkylsulfonyl or (subst.) (C.sub.6 -C.sub.10)-arylsulfonyl, and R.sup.3 is OH, NH.sub.2 or (C.sub.1 -C.sub.6)-alkoxy, or their salts with acids or bases.