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| Patent # | Description |
|---|---|
| US-4,904,819 |
Bicyclic sulfonamide derivatives and process therefor Bicyclic sulfonamide derivatives represented by the formula: ##STR1## (wherein R.sub.1 is hydrogen or lower alkyl; R.sub.2 is lower alkyl, aralkyl, or aryl... |
| US-4,904,818 |
Sizing agents for carbon fibers Sizing agents characterized as containing bisphenolpolyalkylene glycol etherester copolymer of a specified structure are particularly suited for coating carbon... |
| US-4,904,817 |
Process for the preparation of aromatic carboxylic acid esters Disclosed is an improved process for the manufacture of aromatic carboxylic acid esters by the carbonylation of aromatic iodides wherein the amount of the... |
| US-4,904,816 |
Process for the manufacture of anilinofumarate via chloromaleate or
chlorofumarate or mixtures thereof There is provided a novel process for the manufacture of anilinofumarate via chloromaleate or chlorofumarate or mixtures thereof. |
| US-4,904,815 |
Phenols and their production New phenols are described containing an alkyl substituent containing a functional group; as well as a process for the production of such phenols. The new phenols... |
| US-4,904,814 |
Process for the preparation of tert-alkyl esters Process for the preparation of tert-alkyl esters of the formula I ##STR1## in which m is 1 or 2, R is C.sub.4 -C.sub.12 tert-alkyl and X, if m=1, is ... |
| US-4,904,813 |
Cyanomethyl acid halides of phosphorus and process for their preparation The invention relates to compounds of the general formula ##STR1## in which R.sup.1 represents Hal or C.sub.1 -C.sub.3 -alkyl and Hal reprsents a halogen... |
| US-4,904,812 |
Preparation of unsaturated nitriles Unsaturated nitriles are prepared from lactones and NH.sub.3 by a process in which the reaction of the lactone with NH.sub.3 is carried out in the presence of a... |
| US-4,904,811 |
(Z)-2-cyano-2-oximino-acetyl chlorides A Z compound, substantially free of the E-isomers, of the formula ##STR1## in which Q represents Cl or OM, M represents hydrogen or an alkali metal atom, R... |
| US-4,904,810 |
Bischoloroformate preparation method with phosgene removal and
monochloroformate conversion Aqueous bischloroformates are prepared by the reaction of a dihydroxyaromatic compound (e.g., bisphenol A) with phosgene in a substantially inert organic liquid... |
| US-4,904,809 |
Platinum complex A platinum complex having a superior antitumor activity is disclosed. The platinum complex has a structure represented by the formula: ##STR1## wherein A... |
| US-4,904,808 |
Chelate ligands for low pressure hydroformylation catalyst and process
employing same A novel ligand for use in hydroformylation reactions wherein at least one olefin having from 2 to 20 carbon atoms is contacted in a reaction zone at a... |
| US-4,904,807 |
Selective extraction of argon from ethylene oxide recycle stream The invention relates to an improved process for production of ethylene oxide which minimizes unreacted ethylene losses through the use of semi-permeable... |
| US-4,904,806 |
Preparation of tetrahydrofurans from butane-1,4-diols Tetrahydrofurans are prepared in the gas phase from butane-1,4-diols which may be substituted by alkyl, alkenyl and/or aryl radicals in the carbon skeleton. The... |
| US-4,904,805 |
Process for manufacturing a diketone A process for the manufacture of ketopantolactone of the formula ##STR1## from pantolactone, which comprises dehydrogenating pantolactone in the presence of... |
| US-4,904,804 |
Preparation of 2-pyrrolidone Process is disclosed for the one reaction step preparation of 2-pyrrolidone by contacting with hydrogen, ammonia, at least one diluent and a catalyst consisting... |
| US-4,904,803 |
Process for producing N-substituted maleimides N-substituted maleimides are prepared by reacting maleic anhydride with an amine in the presence of Cu or a copper compound and purifying the maleimide produced... |
| US-4,904,802 |
Imides An imide of the formula: ##STR1## where R.sub.1 is hydrogen or C.sub.1-4 alkyl. |
| US-4,904,801 |
Process for the preparation of aromatic ether bismaleimides The present invention provides a process for producing aromatic ether bismaleimides of the Formula (II) ##STR1## wherein A is a divalent mononuclear or... |
| US-4,904,800 |
Intermediates for the production of benzotriazoles A compound of the formula: ##STR1## wherein R is a C.sub.1 -C.sub.5 alkyl group, a C.sub.3 -C.sub.5 alkenyl group, a C.sub.3 -C.sub.5 alkynyl group or a... |
| US-4,904,799 |
Preparation of tryptophols Indole derivatives characterized by having a 1,3,4,9-tetrahydropyrano[3,4-b]indole-1-acetic acid nucleus bearing a substituent in position 1-, 4-, 5-, 6-, 7- and... |
| US-4,904,798 |
(4-amino-2-hydroxyphenyl-1-oxoisoindolenines, preparation thereof and
hydrolysis thereof to... Isoindolenines of the general formula (I) ##STR1## where R.sup.1 is hydrogen, unsubstituted or chlorine-, hydroxylphenyl- or cyano-substituted C.sub.1... |
| US-4,904,797 |
Process of preparing cycloalkano(1,2-B)indole-sulphonamides Cycloalkano[1,2-b]indole-sulphonamides of the formula ##STR1## where appropriate in an isomeric form, and their salts are disclosed. These compounds are... |
| US-4,904,796 |
Preparation of a blue anthraquinonoid disperse dye of
1,4-naphthoquinone-[2,]-phthalimides Blue anthraquinonoid disperse dyes are prepared by reacting a 1-amino-4-nitroanthraquinonecarboxamide (II) with a cyanide in an aqueous medium in the presence of... |
| US-4,904,795 |
Halogen substituted phthalimide flame retardants Novel halogen-substituted phthalimides are provided which are the reaction product of a halogenated phthalic anhydride with an alkoxylated amine or the reaction... |
| US-4,904,794 |
Pyrazoline compounds New pyrazoline compounds of the formula ##STR1## in which X is 1,4-phenylene, ##STR2## if n is 1 or if R.sub.7 or R.sub.8 contains an SO.sub.3 M... |
| US-4,904,793 |
Triazole compounds, and their production A triazole compound of the formula: ##STR1## wherein X is a hydrogen atom or a chlorine atom, which can be produced by subjecting an aromatic aldehyde of... |
| US-4,904,792 |
N-thiazolymethylthioalkyl-N'-alkylamidines and related compounds N-alkyl-N'-(2-aminomethyl-4-thiazolylmethylthio)alkyl guanidines, thioureas, ethenediamines and related compounds, H.sub.2 -receptor antagonists, useful in... |
| US-4,904,791 |
Cephalosporin derivatives The present invention relates to novel cephalosporin derivatives, processes for preparing thereof, compositions for preventing and/or treating infectious... |
| US-4,904,790 |
Optically active styrene compounds substituted by a pyridinyl group Optically active compounds of the formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.4 -alkyl, phenyl or benzyl, R.sup.2 is a radical of the formula II... |
| US-4,904,789 |
Process for the preparation of unsymmetrical dihydropyridines In the preparation of nitrenedipine by reaction of an ylidene compound of the formula ##STR1## with an enamine compound of the formula ##STR2## ... |
| US-4,904,788 |
Hydrocarbon-soluble complexes of magnesium alkoxides with magnesium
amides Hydrocarbon-soluble complexes of magnesium alkoxides with magnesium amides are described. The magnesium amide moiety is derived from an amine (e.g., an... |
| US-4,904,787 |
Method for producing 2,4-dihydroxyquinoline derivatives A method for producing a 2,4-dihydroxyquinoline derivative of the formula: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is a hydrogen atom, ... |
| US-4,904,786 |
Quinoline compounds as antiallergic and antiinflammatory agents There are disclosed compounds of the formula ##STR1## wherein R.sup.1 is ##STR2## n is 0-5; R.sup.2 is hydrogen, loweralkyl, loweralkoxy, lower ... |
| US-4,904,785 |
2-phenylimidazo[4,5-c]pyridines This invention provides for certain 2-phenylimidazo[4,5-c]pyridines, their pharmaceutical formulations, and their use as positive inotropic agents, ... |
| US-4,904,784 |
Active compounds A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein all the symbols are defined in the specification; having ... |
| US-4,904,783 |
Herbicidal compositions N-Arylsulfonyl-N'-(4-mercaptomethyl-pyrimidinyl)-ureas of the formula ##STR1## (symbols in this formula defined herein) and the salts of these compounds ... |
| US-4,904,782 |
Process for the production of phthalazineacetic acid ester derivatives
and a novel intermediate This invention relates to a process for the production of phthalazineacetic acid ester derivatives of the formula ##STR1## wherein R is (C.sub.1 -C.sub.4)... |
| US-4,904,781 |
Carbamic acid derivatives Carbamic acid derivatives having the following general formula: ##STR1## wherein R is an aromatic radical containing at least one benzene ring with at least... |
| US-4,904,780 |
Process for the monoacylation of water-soluble organic amino compounds An improved process for the monoacylation of water-soluble organic amines using 2,4,6-trifluorotriazine in aqueous medium consists in carrying out the reaction... |
| US-4,904,779 |
Heterocycles based on piperazinopiperazine Heterocyclic compounds of the formula (I) ##STR1## where n is an integer from 1 to 70, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently of the... |
| US-4,904,778 |
Pyrimidine-2-phenylamino derivatives The invention relates to ureas having a herbicidal and plant growth-regulating action of the formula ##STR1## in which R.sup.1 and R.sup.2 each represent,... |
| US-4,904,777 |
Mono azo dyes containing as diazo radical a thiophene radical which
possesses an oxime group A thiophene-containing azo dye of the formula ##STR1## where R is substituted or unsubstituted alkyl, alkenyl, cycloalkyl or phenyl, X is hydrogen, halogen,... |
| US-4,904,776 |
Method for producing crystalline cefadroxil hemihydrate The invention relates to a method for producing crystalline cefadroxil hemihydrate. According to the method a cefadroxil solvate is slurried with a mixture... |
| US-4,904,775 |
Heteroaroylhydrazide derivatives of monocyclic beta-lactam antibiotics Compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof and possessing antibacterial activity, and intermediates to compounds... |
| US-4,904,774 |
Decolorization of glycosides The catalytic hydrogenation of a glycoside composition to reduce the color of the composition is disclosed. |
| US-4,904,773 |
Process for extracting methylxanthines from aqueous solutions containing
same Methylxanthines such as caffeine are removed from aqueous solution by contact with cyclodextrin. A decaffeination process using selected cyclodextrin species is... |
| US-4,904,772 |
Mixed hydrophobe polymers Water-soluble, cellulose ether polymers having (a) at least one substituent selected from the group consisting of hydroxyethyl, hydroxypropyl, and methyl... |
| US-4,904,771 |
Pseudouridine derivative 5'-Pseudouridyl-N-oleoyl carbamate represented by the formula: ##STR1## This compound is physiologically active in that it markedly enhances the actions of... |
| US-4,904,770 |
Production of 2',3'-dideoxy-2',3'-didehydronucleosides There are disclosed novel processes for producing 2',3'-dideoxy-2'3'-didehydronucleosides, for example, 2',3'-dideoxy-2',3'-didehydrothymidine in high yields and... |
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