Abstract: The present invention relates to polymethine spectral sensitising dyes comprising at least one intracyclic thioether function macrocycle.These special sensitising dyes may be used in silver halide photographic products.These spectral sensitising dyes improve the sensitivity of the photographic products whilst reducing the residual dye stain.

Abstract: The invention provides compounds of the formulas ##STR1## which are useful as intermediates for the preparation of 6-demethyl-6-deotetracycline antibiotic agents.

Abstract: Phenoxyphenylacetic acids and derivatives of general structural formula I ##STR1## have endothelin antagonist activity and are therefore useful in treating cardiovascular disorders, such as hypertension, postischemic renal failure, vasospasm, cerebral and cardiac ischemia, myocardial infarction, inflammatory diseases, Raynaud's disease, and endotoxic shock, and asthma.

Abstract: A compound of the formula ##STR1## V, W, Y, and Z are each independently C--H, oxygen, nitrogen, or sulfur; T is C--H or nitrogen;n is 0 or 1;R.sup.4 is hydrogen or one, two or three substituents independently selected from C.sub.1 -C.sub.4 -alkyl, halo-substituted C.sub.1 -C.sub.4 -alkyl, hydroxy-substituted C.sub.1 -C.sub.4 -alkyl, halogen, hydroxy, C.sub.1 -C.sub.4 -alkoxy, mercapto, amino, mono-(C.sub.1 -C.sub.4 -alkyl)amino, di-(C.sub.1 -C.sub.4 -alkyl)amino, formamido, mono-(C.sub.1 -C.sub.4 -alkyl)amido, di-(C.sub.1 -C.sub.4 -alkyl)amido, cyano, nitro, C.sub.1 -C.sub.4 -alkoxycarbonyl, carboxyl, aminomethyl, mono-(C.sub.1 -C.sub.4 -alkyl)aminomethyl, di-(C.sub.1 -C.sub.4 -alkyl)aminomethyl, wherein free hydroxy and amino groups may be protected.

Abstract: Substituted imidazoles such as ##STR1## are useful as angiotensin II blockers. These compounds have activity in treating hypertension and congestive heart failure.

Abstract: The present invention relates to electroactive compounds capable of undergoing a change in light absorption and refraction due to an applied electric field and a permanent change in refraction due to exposure to predetermined bands of optical radiation. The present invention also relates to electroactive compositions containing such electroactive compounds, electrooptical components comprised of such electroactive compositions and electrooptical devices comprised of such electrooptical components, as well as novel processes of making the same.

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: The subject of the present invention is compounds which correspond to the following general formula: ##STR1## in which R.sub.1 and R.sub.3 independently of one another represent H, an alkyl, alkenyl, cycloalkyl, aryl, arylalkyl or an alkylaryl group, a heterocycle, or groups which are unsubstituted or substituted, in particular by one or more hydroxyl or alkoxy groups or halogen;n represents an integer from 1 to 5;i in each case takes values from 1 to n for the n successive ##STR2## links; R.sub.2, R.sub.4.sup.i and R.sub.5.sup.i independently of one another represent H, an alkyl, alkenyl, aryl, alkoxy, hydroxyalkyl, alkoxyalkyl, amido, acyl or carboxyalkyl group, or a salt, or an alkyl ester of the latter; or R.sub.4.sup.i and R.sub.5.sup.i together form an oxo group ##STR3## R.sub.6 and R.sub.7 represent H, or R.sub.6 and R.sub.7 together form an oxo group ##STR4## x represents a 5- or 6-membered heterocycle which contains at least one nitrogen atom, or, in the event that ##STR5## where R.sub.8 and R.sub.

Abstract: Hydroquinone diethers of the formula I ##STR1## where A.sup.1 and A.sup.2 are substituted or unsubstituted alkylene;R.sup.1 is hydrogen, halogen or alkyl;R.sup.2 is substituted or unsubstituted pyrazolyl or pyridyl;X is a substituted or unsubstituted 5-membered heteroaromatic radical, are prepared as described using the described intermediates, and are used as pesticides.

Abstract: Described are a series of novel photochromic benzopyran and naphthopyran compounds substituted with (1) a cyclopropyl group and (2) a phenyl, substituted phenyl, or 5-member aromatic heterocyclic group at the 2-position of the benzopyran or naphthopyran ring. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic or plano lenses that incorporate the novel pyran compounds or combinations of the novel pyran compounds with other complementary photochromic compounds are described.

Abstract: An antifungal compound, demethylallosamidin, represented by the formula: ##STR1## is disclosed. Methods of production and antifungal compositions comprising demethylallosamidin are also provided.

Abstract: Insecticidally active nitro compounds of the formula ##STR1## wherein R.sup.1 is hydrogen, cyano or alkyl,R.sup.2 is hydrogen or an organic radical,R.sup.3 is --O--R.sup.4, --S--R.sup.4 or ##STR2## R.sup.4 is an organic radical, R.sup.5 and R.sup.6 are hydrogen or organic radicals,Y is CH or N, andZ is an optionally substituted 5- or 6-membered heterocyclic group,with certain conditions and exceptions.

Abstract: Insecticidal novel nitro compounds of the formula ##STR1## in which R.sup.1 and R.sup.2 are hydrogen or C.sub.1-4 alkyl, R.sup.3 is --S--R.sup.4 or ##STR2## in which R.sup.4 is C.sub.1-4 alkyl, R.sup.5 and R.sup.6 are hydrogen or C.sub.1-4 alkyl,Y is CH or N, andZ is a five- or six-membered heterocyclic group having at least one nitrogen atom which may be substituted by halogen or C.sub.1-4 alkyl, provided that where Y is CH,then R.sup.1 is C.sub.1-4 alkyl.

Abstract: Hydrocarbon compositions, including oligomers and polymers, for use in improving the thermo-oxidative stability and the dispersancy and viscosity index improvement (for high molecular weight) properties of fuels and lubricating oils are disclosed. These compositions are adducts of sulfur mono- and diimides having one of the following formulae: ##STR1## wherein R is a hydrocarbycontaining at least 18 carbon atoms, in which X.dbd. can be O.dbd., S.dbd., Y'--N.dbd., i is 0 or 1, --Y and Y'-- can be ##STR2## wherein R' is hydrocarbyl or hydrocarbyloxy, R" is hydrocarbyl, R'" and R"" are hydrocarbyloxy, and each of R', R", R'", and R"" is from from 1 to 20 carbon atoms.

Abstract: Hydrazide functionalized 2-hydroxybenzophenone ultraviolet light and heat stabilizers and derivatives are disclosed having the general formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X, Y, Z, all substituents thereof, and n are set forth in the Summary of the Invention. Y--N(R.sup.6)--Z is the hydrazide or derivative group and --X--R.sup.5 -- links the hydrazide group to an aromatic nucleus of the optionally substituted benzophenone group. Derivatives are, for example, acyl hydrazides, diacyl hydrazides (including imides), hydrazones and alkyl hydrazides. The compounds are useful as ultraviolet light absorbers and heat stabilizers for plastics.

Abstract: The amino-9,10-secosteroids ##STR1## of the present invention contain an amino group attached to the terminal carbon atom of the C.sub.17 -side chain and are useful as pharmaceutical agents for treating a number of conditions including spinal trauma, mild and/or moderate to severe head injury, etc.

Abstract: 2-Pyrazoline derivatives of the formula (A): ##STR1## where R.sup.1 is a pyridyl, a pyrazyl or an alkoxyl group; and R.sup.2 is a hydrogen atom, an alkyl, a pyridyl, a furyl, phenyl or a substituted phenyl group, and to a process for producing the same. Therapeutic agents for treating cerebrovascular diseases containing, as the active ingredient, a 2-pyrazoline derivative represented by the formula (G): ##STR2## where R.sup.3 is a hydrogen atom, an alkyl, acetyl, an alkoxycarbonyl, an amino, benzoyl, a substituted benzoyl, a pyridylcarbonyl, a furylcabonyl, a thienylcarbonyl, a pyrazylocarbonyl, an N-substituted carbamoyl, an N-substituted thiocarbamoyl, or carboxyl group; and R.sup.4 is a hydrogen atom, an alkyl, a pyridyl, a thienyl, a furyl, cyclohexyl, phenyl or a substituted phenyl group or a pharmaceutically acceptable salt thereof.

Abstract: Cyclohexylamines of the formula ##STR1## where X is a single bond or an alkylene chain, Y is hydrogen or an aryl, cyclohexyl, 4-cyclohexylcyclohexyl, perhydro-1- or 2-naphthyl or piperidyl radical, R.sup.1 and R.sup.2 are hydrogen, alkyl, alkenyl, alkynyl, hydroxyalkyl, cycloalkyl, cycloalkenyl or arylalkyl, or R.sup.1 and R.sup.2 together form an alkylene group and, together with the N atom, form a ring, and acid addition salts thereof, with the exception of compounds in which X is a single bond, Y is cyclohexyl, R.sup.1 and R.sup.2 are hydrogen or methyl, and the compounds in which X is C.sub.6 -, C.sub.7 - and C.sub.8 -alkyl, Y is hydrogen and R.sup.1 and R.sup.2 together with the N atom whose substituents they are form a 2,6-dimethylmorpholine radical, and fungicides containing such cyclohexylamines.

Abstract: Compounds containing an aromatic ring portion fused with a tellurazolium or derivative tellurazole, tellurazoline (including tellurazolinylidene), or tellurazolinium ring portion are disclosed together with processes and intermediates for their preparation. With properly selected pendant groups these tellurazolium and derivatives compounds can be usefully employed as dyes, antifoggants or stabilizers, nucleating agents, latent image keeping addenda, or speed or contrast altering addenda in silver halide photographic systems.

Abstract: Compounds containing an aromatic ring portion fused with a tellurazolium or derivative tellurazole, tellurazoline (including tellurazolinylidene), or tellurazolinium ring portion are disclosed together with processes and intermediates for their preparation. With properly selected pendant groups these tellurazolium and derivative compounds can be usefully employed as dyes, antifoggants or stabilizers, nucleating agents, latent image keeping addenda, or speed or contrast altering addends in silver halide photographic systems.

Abstract: Isotellurazolo[1,5-a]tellurazoles are disclosed. These heterocycles can be prepared by reacting a diarylformamidine with an aromatic tellurazolium salt which is substituted at its 2 ring position with a methine group precursor. The product heterocycles are useful directly for their blue light absorption and in forming stable heterocyclic nuclei containing compounds, such as a photographic addenda.

Abstract: Hydrocarbon compositions, including oligomers and polymers, for use in improving the thermo-oxidative stability and the dispersancy and viscosity index improvement (for high molecular weight) properties of fuels and lubricating oils are disclosed. These compositions are adducts of sulfur mono- and diimides having one of the following formulae: ##STR1## wherein r is a hydrocarbyl containing at least 18 carbon atoms, in which X.dbd. can be O.dbd., S.dbd., Y'--N.dbd., i is 0 or 1, --Y and Y'-- can be ##STR2## wherein R' is hydrocarbyl or hydrocarbyloxy, R" is hydrocarbyl, R'" and R"" are hydrocarbyloxy, and each of R', R", R'", and R"" is from 1 to 20 carbon atoms.

Abstract: Novel inhibitors of angiotensin converting enzyme are disclosed which have the general formula ##STR1## wherein R.sub.1 and/or R.sub.3 form complex amides and imides thereof, R.sub.4 and R.sub.5 form with --N--C-- a 4-6 membered ring structure as described and the other R substituents are selected from a variety of disclosed groups.

Abstract: The invention provides a method of combating a microorganism which comprises allowing a heterocyclic pentalene derivative of general formula I ##STR1## wherein X represents an oxygen atom, a sulphur atom or an --SO-- moiety; Y represents a sulphur, selenium or tellurium atom, provided that when Y represents a selenium or tellurium atom X is an oxygen atom; and R.sup.1 and R.sup.2 together represent a --CH.sub.2 --C(CH.sub.3).sub.2 --CCl(CONH.sub.2)-- or --CH.sub.2 --A--CH.sub.2 -- linkage where A is a --CH.sub.2 --, --CH(CH.sub.3)-- or --S(O).sub.n -- moiety, where n is 0, 1 or 2; provided that when X is an oxygen atom and Y is a sulphur atom R.sup.1 and R.sup.2 together represent a --CH.sub.2 --S(O).sub.n --CH.sub.2 -- linkage and when X is an --SO-- moiety and A is a S(O).sub.n --, n is 2; to act on the microorganism or its environment; and such derivatives for use as a therapeutic substance.

Abstract: There are presented compounds of the formula ##STR1## wherein R.sup.1 is one of the 3-substituents usable in cephalosporin chemistry, R.sup.2 is hydrogen, lower alkyl or COOR.sup.3 -lower alkyl, wherein R.sup.3 is hydrogen, a cation of a base or a readily hydrolyzable ester group, and X is sulphur, oxygen or one of the groups --SO-- and --SO.sub.2 --, and the readily hydrolyzable esters, readily hydrolyzable ethers and salts of these compounds and hydrates of the compounds of formula I or of their esters, ethers and salts, also presented are methods for the manufacture of these compounds as well as compounds used in their manufacture.

Abstract: The invention concerns novel compounds of the formula I ##STR1## wherein: A, B and D are selected from CH and N;E is selected from oxygen and sulfur;X are selected from halogen, nitro, cyano, alkyl, substituted alkyl, hydroxy, alkoxy, substituted alkoxy, alkenyl, alkenyloxy, alkynyl, alkynyloxy, acyloxy, alkoxycarbonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, sulfamoyl, substituted sulfamoyl, alkanoyloxy, benzyloxy, substituted benzyloxy, phenyl, substituted phenyl, amino, substituted amino, and the groups formyl and alkanoyl and the oxime, imine and Schiff base derivatives thereof;R.sup.1 is selected from hydrogen, alkyl, alkenyl, alkynyl, substituted alkyl, alkylsulfonyl, arylsulfonyl, acyl and an inorganic or organic cation;R.sup.2 is selected from alkyl substituted alkyl, alkenyl, haloalkenyl, alkynyl and haloalkynyl;R.sup.3 is selected from alkyl, fluoroalkyl, alkenyl, alkynyl, and phenyl;R.sup.

Abstract: Radiation sensitive silver halide photographic elements are disclosed which are protected from fog by hydrolyzed quaternized chalcogenazolium salts of middle chalcogens, wherein the quaternizing substituent contains a ##STR1## group in which T and T.sup.1 are carbonyl or sulfonyl and m is from 1 to 3.

Abstract: Compounds containing an aromatic ring portion fused with a tellurazolium or derivative tellurazole, tellurazoline (including tellurazolinylidene), or tellurazolinium ring portion are disclosed together with processes and intermediates for their preparation. With properly selected pendant groups these tellurazolium and derivative compounds can be usefully employed as dyes, antifoggants or stabilizers, nucleating agents, latent image keeping addenda, or speed or contrast altering addenda in silver halide photographic systems.

Abstract: Quaternary sulfoalkyl or sulfoalkenyl salts of tertiary amine bases are prepared by reacting the tertiary amine bases at elevated temperatures with a hydroxy alkane sulfonic acid or a hydroxyalkene sulphonic acid.

Abstract: There are presented compounds of the formula ##STR1## wherein R.sup.1 is one of the 3-substituents usable in cephalosporin chemistry, R.sup.2 is hydrogen, lower alkyl or COOR.sup.3 -lower alkyl, wherein R.sup.3 is hydrogen, a cation of a base or a readily hydrolyzable ester group, and X is sulphur, oxygen or one of the groups --SO-- and --SO.sub.2 --, and the readily hydrolyzable esters, readily hydrolyzable ethers and salts of these compounds and hydrates of the compounds of formula I or of their esters, ethers and salts, also presented are methods for the manufacture of these compounds as well as compounds used in their manufacture.

Abstract: Preparation of palladium(II) bis(hexafluoroacetylacetonate) and adducts derived therefrom are disclosed, said adducts having the formulaPd(F.sub.6 ACAC).sub.2 .multidot.L.sub.nwherein L is a Lewis base selected from certain classes, and n is an integer from 1 to 4. These compounds are useful in preparing catalytic and primer surfaces of elemental palladium.

Abstract: Tin-containing oxime derivatives of the formula ##STR1## wherein n is 0, 1 or 2,m is 0 or 1,Ar is an optionally substituted phenyl radical or an optionally substituted naphthyl radical, or when m is 0, Ar may also be an ester group,X is hydrogen, --CN, halogen, lower alkyl, lower alkanoyl, --COOH, a carboxylic acid ester radical, a carbamoyl radical andR.sub.8, R.sub.9 and R.sub.10, each independently of the other, are alkyl, aryl, aralkyl or C.sub.3 -C.sub.7 cycloalkyl, are suitable for protecting cultivated plants from the phytotoxic action of aggressive agrochemicals, in particular herbicides preferred are compounds of the above formula in whichAr is alkylphenyl, alkoxyphenyl, halophenyl, naphthyl or amido,X is cyano or a carboxylic acid ester radical, andR.sub.8, R.sub.9 and R.sub.10 are the same and are C.sub.1 -C.sub.4 alkyl, benzyl or phenyl.

Abstract: Sulphoalkyl quaternary salts of the formula ##STR1## wherein X is --O--, --Se--, --S--, --NR-- or --CR(R)--, R is hydrogen or alkyl, R.sub.1 is hydrogen, methyl or ethyl, R.sub.2 and R.sub.3 are each hydrogen or substituents or together represent the atoms necessary to complete an optionally substituted benzene ring, R.sub.4 is optionally substituted alkylene of 3 or 4 carbon atoms and n is 1 or 0, except that when n is 1, R.sub.1 cannot be hydrogen, are prepared by heating at a temperature above 80.degree. C. a heterocyclic base of the formula ##STR2## wherein X, R.sub.1, R.sub.2, R.sub.3 and n have the indicated meanings with a hydroxysulphonic acid of the formula HOR.sub.4 SO.sub.3 H.

Abstract: A thermally stable, curable fluoroelastomer composition containing sulfonium curing agent is described. The composition is curable in reactive admixture with an inorganic acid acceptor and includes:(a) a fluoroelastomer comprising vinylidene fluoride;(b) at least one triorgano sulfonium compound; and(c) at least one aromatic polyhydroxy compound.