Abstract: Arylazo and poly(arylazo) dyes having at least one core radical selected from naphthyl or anthracyl and having at least one 2,3-dihydro-1,3-dialkyl perimidine substituent, a guest-host composition comprising a liquid crystal host solvent and the arylazo or poly(arylazo) dichroic dye, and a liquid crystal display comprising the guest-host composition, are disclosed.

Abstract: A liquid azo dye represented by the formula: ##STR1## (wherein, A stands for a phenylene group which may have a substituent, n is o or 1, Cp is a pyrazolone derivative residue or a naphthol derivative residue, X is --NH-- or --COO-- and R is an alkyl group having 3 to 12 carbon atoms).

Abstract: A process for preparing an alkyl sulfonate derivative comprises causing a nitrogen-containing heterocyclic compound represented by the following formula (1): ##STR1## wherein X represents --O--, --S--, --NR.sup.1 --, --Se--, --Te-- or --CR.sup.2 R.sup.3 --, in which each of R.sup.1, R.sup.2 and R.sup.3 independently represents a hydrogen atom or a lower alkyl group, Y represents a hydrogen atom, a mercapto group, an arylthio group, an aralkyl group, a sulfo group, a halogen atom, an alkyl group, an alkylthio group, an alkylsulfonyloxy group or an arylsulfonyloxy group and each of R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group which may be substituted with a sulfo group, an aryloxy group, an alkylthio group, a haloalkyl group, a halogen atom, a cyano group, a carboxy group or a sulfo group, otherwise R.sup.4 and R.sup.5, R.sup.6 and R.sup.6, R.sup.6 and R.sup.7 and R.sup.7 and R.sup.

Abstract: Method of resolution of chiral hydantoins of the general formula I ##STR1## in which: R.sub.1 designates a lower alkyl radical comprising 1 to 5 carbon atoms in linear or branched chain,R.sub.2 designates a phenyl radical, possibly mono-, di-, or tri-substituted by lower alkyl or alkoxy radicals or halogen atoms, whether identical of different, or a heteroaryl radical containing a ring of 5 to 7 members in which the sole hetero atom is nitrogen, oxygen or sulfur, or else an aralkyl radical the alkyl part of which comprises one or two carbon atoms and the aryl ring is a phenyl group possibly mono-, di- or tri-substituted by radicals which are lower alkyl or alkoxy radicals or halogen atoms, whether identical or different. The hydantoin (I) to be resolved is dissolved in an alcohol or an alkaline solution, and an enantiomer of .alpha.

Abstract: An unsaturated imide compound represented by formula (1): ##STR1## wherein Q is an alicyclic structure-containing hydrocarbon group having 4-20 carbon atoms; each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.i and R.sub.j represents a hydrogen atom, a halogen atom, a hydrocarbon group having 1-6 carbon atoms or a halogen-containing hydrocarbon group having 1-6 carbon atoms; each of a, b, c, d, e and f represents an integer of 0 to 4 satisfying a+b.ltoreq.4, c+d.ltoreq.4 and e+f.ltoreq.4 and D represents a divalent organic group having 2-24 carbon atoms and an ethylenically unsaturated double bond, a process for producing the unsaturated imide compound of formula (1) and intermediates for producing the unsaturated imide compound of formula (1). The unsaturated imide compound of formula (1) is well soluble in organic solvents and can give cured products excellent in heat resistance, low water absorption and flexibility.

Abstract: The compounds of formula (I): ##STR1## wherein R is (CH.sub.3).sub.2 CHCH.sub.2 -- or (CH.sub.3).sub.3 CCH.sub.2 --, or R is the group CH.sub.3 --O--(R.sup.1)CH-- where R.sup.1 is hydrogen or methyl, or R is a cycloalkyl group containing from 3 to 6 carbon atoms have nematicidal activity and the present invention discloses a method for killing or controlling nematode pests which comprises applying to the locus of the pests or to a plant susceptible to attack by the pest an effective amount of a compound of formula (I).

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is C.sub.1-18 alkyl, substituted C.sub.1-18 alkyl, phenyl, substituted phenyl, C.sub.3-6 alkenyl, substituted C.sub.3-6 alkenyl, C.sub.3-6 alkynyl or substituted C.sub.3-6 alkynyl,R.sub.2 is an electron withdrawing substituent; andK is the residue of a coupling component that is free of any water solubilizing groups.The compounds are disperse dyes which can be used to dye, print or pad fully synthetic or semi-synthetic hydrophobic high molecular weight organic material.

Abstract: The present invention pertains to a method of preparing substituted and unsubstituted N-hydroxy-2-aminobutane diacid derivatives. The invention also pertains to the use of N-hydroxy-2-aminoethane derivatives (including the N-hydroxy-2-aminobutane diacid derivatives) in the preparation of pyridine derivatives.

Abstract: Compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof where A is ##STR2## R.sub.3 is --(CH.sub.2).sub.n -- or in the case where R.sub.2 is ##STR3## R.sub.3 in addition to the above may be ##STR4## R.sub.4 is hydroxy, alkoxy, amino, alkylamino or dialkylamino; R.sub.5 is hydrogen, fluorine, chlorine, bromine, iodine, --CN, CF.sub.3, lower alkyl, lower alkoxy, cycloalkyl or aryl;R.sub.6 is lower alkyl, cycloalkyl or aryl;R.sub.7, R.sub.7 ', R.sub.8 and R.sub.8 ' are independently hydrogen or a lower alkyl or R.sub.7 and R.sub.8 may together be CH.sub.2 CH.sub.2 ;Z is hydrogen or ##STR5## m is an integer of 1 or 2; n is zero or an integer of 1 to 6; andp is an integer of 1 to 5. These compounds are beta 3 adrenergic receptor agonists and are useful, therefore for example, in the treatment of diabetes, obesity and gastrointestinal diseases.

Abstract: The invention discloses certain substituted .alpha.-aminoacids having the formula ##STR1## where m and n are 1 or 2, and R, R.sub.1, R.sub.2, R.sub.3 and Y have various significances, which compounds are useful in treating epilepsy, disorders associated with excess GH or LH secretion, anxiety, schizophrenia, depression, CNS degenerative disorders, cerebral hypoxic conditions and stress-related psychiatric disorders.

Abstract: Diphenylpyrrolyfuran derivatives represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different and independently represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, or a lower alkylsulfenyl group; m and n independently represent an integer of from 1 to 3; R.sub.3 represents a hydrogen atom or a lower alkyl group, R.sub.4 represents a hydrogen atom, a lower alkyl group, or a lower acyl group; and R.sub.5 represents a hydrogen atom, a lower alkyl group which may have one or more suitable substituents, a lower alkoxy- or an aryloxy-carbonyl group, an acyl group, or a sufonyl group, and pharmaceutically acceptable salts thereof are disclosed. The compounds disclosed are useful as anti-inflammatory agent, anti-allergic agents, anti-platelet agents and the like.

Abstract: This invention provides a process for preparing kainic acid and provides intermediates in the synthesis thereof.

Abstract: The invention provides a pharmaceutical composition comprising a particular physical form of N-[4-[5-(cyclopentyloxy-carbonyl)amino-1-methylindol-3-yl-methyl]-3-methox ybenzoyl]-2-methylbenzenesulphonamide and polyvinylpyrrolidone. It also provides methods for preparing this physical form, and another physical form of N-[4-[5-(cyclopentyloxycarbonyl)amino-1-methylindol-3-yl-methyl]-3-methoxy benzoyll-2-methylbenzenesulphonamide useful in the preparation of the first mentioned physical form. The compositions are useful in the treatment of diseases in which leukotrienes are implicated, for example asthma.

Abstract: Mixtures of iron complexes of metallizable disazo compounds, at least one compound being of the formula ##STR1## and at least one compound being of the formula ##STR2## wherein the substituents have the meaning given in the specification, are useful for dyeing substrates dyeable with anionic dyes, e.g., leather.

Abstract: Bisazo compounds, useful as organic photoconductive materials, having formula (I) or (II) are disclosed: ##STR1## wherein R represents hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms or a nitro group; ##STR2## wherein A and B independently represent hydrogen or chloride provided that either A or B represents chloride.

Abstract: A process for the preparation of highly pure deacylated glycerophosphorylcholine, glycerophosphorylethanolamine and glicerophosphorylserine starting from mixtures of the corresponding acylated derivatives.The process according to the invention is characterized in that the deacylation reaction, by means of alcoholysis, and the fractionation are carried out in a single step in a reactor containing a basic ion-exchange resin.

Abstract: An optically active azo compound is represented by the following general formula (I), ##STR1## where R is an alkyl group having from 1 to 20 carbon atoms, and R* is an optically active radical of an alkyl group or a halogen substituted alkyl group having from 1 to 10 carbon atoms. A liquid crystal composition contains this compound. A method for producing an optically active azo compound represented by the following general formula (I) has the step of reacting a phenol compound represented by the following general formula (II) with an optically active carboxylic acid represented by the following general formula (III) using a condensing agent at a room temperature.

Abstract: Compounds of the formula (I) ##STR1## and their use as antidotes against the phytotoxicity of many herbicides used on crops, without diminishing the effect of the herbicide against weeds.

Abstract: Polyaspartic acid having a weight average molecular weight of 1000 to 5000 is produced by hydrolysis of anhydropolyaspartic acid that has been produced by condensation polymerization of L-aspartic acid. Conversion in excess of 80 percent is achievable utilizing "temperature vs. time" profiles.

Abstract: Metal-azo dyes with excellent solubility in organic media are provided. The metal-containing dyes of the present invention have a nucleus of the formula: ##STR1## wherein the substituents have the meaning given in the description. Dye-donor sheets comprising the above-mentioned dyes are also disclosed.