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| Number | Title | Issue Date |
| 4275076 | Substituted naphthoic acids Certain ureides of substituted naphthoic acids and salts useful as inhibitors of connective tissue destruction.... | 06/23/1981 |
| 4268684 | Preparation of carbamates from aromatic amines and organic carbonates Carbamates are prepared from organic carbonates and aromatic amines in the presence of zinc, tin or cobalt salts of monovalent organic compounds having a pKa value of less than 2.8 and compounds having more than one carboxyl group per molecule and oxides,... | 05/19/1981 |
| 4268683 | Preparation of carbamates from aromatic amines and organic carbonates Carbamates are prepared from organic cabonates and aromatic amines in the presence of zinc or tin salts of monovalent organic compounds having a pKa value of at least 2.8 such as zinc naphthenate and which are soluble at the reaction conditions.... | 05/19/1981 |
| 4267122 | Aminosulfonylcarboxylic acids and their substituted ammonium salts Aminosulfonylcarboxylic acids and their manufacture from diamines and chlorosulfonylcarboxylic acids.... | 05/12/1981 |
| 4267123 | Method of preparing propane sulfonates An improved method for preparing propane sulfonates by the addition of metal bisulfites to allyl ethers, amines and sulfides is provided wherein a substantial amount of the desired product is added to the reaction mixture.... | 05/12/1981 |
| 4266069 | Processes for the preparation of hydratropic acids and esters The invention concerns the novel compounds dialkyl 2-(3-fluoro-4-nitrophenyl)-2-methylmalonate IIIa and dialkyl 2-(3-fluoro-4-aminophenyl)-2-methylmalonate IVa useful as intermediates in an improved process for making 2-(2-fluoro-4-biphenylyl)propionic ac... | 05/05/1981 |
| 4266070 | Catalytic process for the manufacture of urethanes A process for the production of urethanes is provided in which an organic primary or secondary amine is contacted, in the substantial absence of reactive oxygen, with a source of carbon monoxide and an organic compound containing at least one hydroxyl gro... | 05/05/1981 |
| 4263041 | Optionally substituted phenyl, and alkyl N-[5-(2-chloro-4-trifluoromethyl-6-optionally substituted phenoxy)-2-nitro, halo, or cyanobenzoyl]carbamates Disclosed are compounds, for example, methyl N-[5-(2-chloro-4-trifluoromethylphenoxy)-2-nitrobenzoyl]carbamate; the process of making the compounds; and the method of controlling weeds such as yellow foxtail and johnsongrass when growing among crops with ... | 04/21/1981 |
| 4263446 | Process for making 3-(3,5-dialkyl-4-hydroxyphenyl)propionate esters of hydroxyalkyloxamides An improved method for making 3-(3,5-dialkyl-4-hydroxyphenyl)propionates of hydroxyalkyloxamides involved heating the hydroxyalkyloxamide with a lower alkyl ester of 3-(3,5-dialkyl-4-hydroxyphenyl)propionic acid in the presence of an alkanestannoic acid a... | 04/21/1981 |
| 4262130 | Process for the production of urethanes The present invention relates to an improved process for the production of urethanes (carbamic acid esters) by the reaction of organic nitro compounds with carbon monoxide and organic compounds containing at least one hydroxy group in the presence of pall... | 04/14/1981 |
| 4262152 | Preparation of trifluoromethylphenyl nitrophenylethers A process for preparing trifluoromethylphenyl nitro phenylethers which comprises treating a trifluoromethylhalobenzene with a base in a cosolvent system to afford a trifluoromethyl phenolate which may be isolated as its free phenol or reacted with an appr... | 04/14/1981 |
| 4261732 | Alkyl and alkoxyalkyl N-3-alkyl and N-3,5-dialkylbenzoyl-N-isopropylaminoacetate herbicides Disclosed are novel herbicides, such as ethyl N-3,5-dimethyl benzoyl-N-isopropylaminoacetate, as well as their use against weeds.... | 04/14/1981 |
| 4261898 | Silicon-modified phthalic acid derivatives The invention relates to Si-modified phthalic acid derivatives (acids, esters and anhydrides) of the formula I ##STR1## in which R1 and R2 independently of one another are --OH, alkoxy with 1-12 C atoms or phenoxy or R1 | 04/14/1981 |
| 4260557 | Polymer containing amino groups and hydroxyl and/or mercapto groups and the use thereof for the production of polyurethane resins The invention relates to compositions containing both amino groups and hydroxyl and/or mercapto groups. The products are obtained by reacting relatively high molecular weight polyols and/or polythiols with less than equivalent quantities of isatoic acid a... | 04/07/1981 |
| 4260781 | Process for the manufacture of carbamates A process for the production of carbamates is provided in which an organic primary or secondary amine is contacted, in the substantial absence of reactive oxygen, with a source of carbon monoxide, an organic compound containing at least one hydroxyl group... | 04/07/1981 |
| 4259105 | Diphenylamine derivatives Compounds of the general formula ##STR1## wherein X is trifluoromethyl or halogen, R1 is hydrogen, lower alkyl, lower alkenyl or benzyl, R2 is lower alkyl, R3 is hydrogen, alkyl or alkali metal, Y is oxygen or sulfur, and n is ... | 03/31/1981 |
| 4259249 | Preparation of hydroxyl zwitterionic compounds A method of preparing hydroxyl substituted ammonio carboxylates comprising a single step of reacting an epoxy ester with a tertiary amine in aqueous alcohol, yielding directly said hydroxyl substituted ammonio carboxylates. The hydroxyl substituted ammoni... | 03/31/1981 |
| 4259511 | Process for separating selenium, selenium compounds, sulfur and/or sulfur compounds from polyurethanes containing these elements and/or compounds A process for separating selenium, selenium compounds, sulfur and/or sulfur compounds from urethanes containing these elements and/or compounds by reacting said urethanes with an aqueous permanganate solution and then separating the resulting phase system... | 03/31/1981 |
| 4258201 | Process for the manufacture of carbamates A process for the production of carbamates is provided in which an organic primary or secondary amine is contacted, in the substantial absence of reactive oxygen, with a source of carbon monoxide, an organic compound containing at least one hydroxyl group... | 03/24/1981 |
| 4256917 | Anhydrous L-lysine monohydrochloride in -cyrstalline form and preparation thereof A novel crystalline form of anhydrous L-lysine monohydrochloride has been found. The novel crystals do not become agglomerated or hardened when packaged. The crystals are formed when the corresponding dihydrate crystals having a sodium content equal to or... | 03/17/1981 |
| 4254273 | Process for preparing esters of -methyl-3,4-dihydroxyphenylalanine Improved process for preparing esters of -methyl-3,4-dihydroxyphenylalanine having pharmaceutical activity via novel N-(tert-butoxycarbonyl) intermediates.... | 03/03/1981 |
| 4254053 | Process for manufacturing D camphorate of L carnitinamide and D camphorate of D carnitinamide A process for manufacturing the D camphorate of L carnitinamide and the D camphorate of D carnitinamide is disclosed, wherein D,L carnitinamide hydrochloride is converted to D,L carnitinamide free base which directly reacts with D camphoric acid either as... | 03/03/1981 |
| 4254279 | Ester resolution process Optically active 1-Trichloromethyl-3-methyl-2-butenyl acetoacetate is prepared by resolving the racemic ester via a crystalline enamine derivative.... | 03/03/1981 |
| 4254138 | Esters of 4-(monoalkylamino)benzoic hydroxyalkanoic acids This disclosure describes esters of 4-(monoalkylamino)benzoic acids with hydroxyalkanoic acids and derivatives, phenols, or 3-pyridinols useful as hypolipidemic and antiatherosclerotic agents.... | 03/03/1981 |
| 4254146 | 3-Benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters 3-Benzoyl-2-nitrophenylacetic acids, metal salts, amides and esters are disclosed having the formula: ##STR1## wherein R1 is hydrogen or lower alkyl; R2 is OH, OM, O-lower alkyl, NH2, NH-lower alkyl or N,N-dilower alk... | 03/03/1981 |
| 4254272 | Aromatic diamines and polyurethanes cured thereby The invention relates to substituted aromatic diamines and polyurethanes cured thereby. The diamines are individually selected from 3,5-diamino-4-tert-alkylbenzoates, 3,5-diamino-4-tert-alkylbenzonitriles and alkylene bis(3-amino-4-tert-alkylbenzoate).... | 03/03/1981 |
| 4252979 | Terephthalic acid derivatives The novel compounds of the formula: ##STR1## wherein R1 and R2 are each either hydrogen or an alkyl group containing from 1 to 4 carbon atoms, and maybe the same or different, are useful intermediates in a novel process for the ... | 02/24/1981 |
| 4252980 | Process for the manufacture of (phenoxy or benzyl)-phenoxypropionic acid methyl esters (Phenoxy- or benzyl)-phenoxypropionic acid methyl esters are produced by esterification of the corresponding anhydrous alkali metal salts with half the molar amount of dimethyl sulfate at a temperature exceeding 120° C.... | 02/24/1981 |
| 4252981 | Synthesis of methylene bis(methylanthranilate) Covers a process for the production of methylene bis(methylanthranilate) which comprises the steps of condensing methylanthranilate with formaldehyde in the presence of a siliceous catalyst.... | 02/24/1981 |
| 4251667 | Process for the preparation of aromatic urethanes A process for the preparation of aromatic urethanes by reacting an aromatic amine, an alcohol and carbon monoxide in the presence of a catalytic quantity of a copper salt, oxygen and a dehydrating agent is disclosed. The reaction is preferably carried out... | 02/17/1981 |
| 4250110 | Method of preparing metoclopramide 2-Chloro-4-N-(ଲ-diethylaminoethyl)aminocarbonyl-5-methoxy-benzamide of the formula, ##STR1## a process for their preparation and a process for preparing metoclopramide of the formula, ##STR2## using the above described 2-chloro-4... | 02/10/1981 |
| 4246425 | 4-Chloro-3,5-diaminophenyl acetates and curing agent 4-Chloro-3,5-diaminophenyl acetates having the formula ##STR1## wherein R represents an alkyl group are useful as curing agent for polyurethane elastomer and intermediates for pharmaceutical and agrochemical compounds and are produced by simultaneous... | 01/20/1981 |
| 4246164 | Process for the resolution of (+)- and (-)-6-methoxy--methyl-2-naphthaleneacetic acid The subject of the invention is a process for resolving mixtures of (+)- and (-)-6-methoxy--methyl-2-naphthaleneacetic acid into the enantiomers thereof, characterized in that N-methyl-D-glucamine [=1-deoxy-1-(methylamino)-D-glucitol] is used as th... | 01/20/1981 |
| 4246193 | Process for the resolution of d,1 2-(6-methoxy-2-naphthyl)propionic acid Mixtures of d 2-(6-methoxy-2-naphthyl)propionic acid and 1 2-(6-methoxy-2-naphthyl)propionic acid or soluble salts thereof are resolved with N-R-D-glucamine or salts thereof, where R is alkyl having 2 to 36 carbon atoms or cycloalkyl having 3 to 8 carbon ... | 01/20/1981 |
| 4243819 | Substituted amino acids Esters and thiolesters of amino acids, intermediates therefor, synthesis thereof, and the use of said esters and thiolesters and compositions for the control of pests.... | 01/06/1981 |
| 4242525 | Process for producing salts of pyruvic acid A salt of pyruvic acid is formed by oxidizing a salt of lactic acid with an oxygen-containing gas in a water-containing solvent in the presence of a catalyst. The catalyst used herein comprises (a) at least one component selected from platinum and palladi... | 12/30/1980 |
| 4242520 | Promoted method for producing carbamates A process for the production of carbamates is provided which comprises contacting an organic primary or secondary amine with a source of carbon monoxide, an organic compound containing at least one hydroxyl group and a source of sulfur, selenium or tellur... | 12/30/1980 |
| 4239886 | Salts of N-acylaminohydroxynaphthalenesulphonic acids Salts of N-acylaminohydroxynaphthalenesulphonic acids which, in the form of the free acid, correspond to the formula ##STR1## wherein R denotes hydrogen or alkyl, X denotes the radical of a monovalent or divalent acyl group, m denotes 1 or 2 and n denotes... | 12/16/1980 |
| 4239902 | N-Carboxyacylaminoacid esters, processes for their production and their diagnostic use The invention relates to N-carboxyacylaminoacid esters, a process for their production and their use as chromogenic substrates for the continuous and discontinuous determination of enzymes with a chymotrypsin-like specificity, in particular catheepsin G.... | 12/16/1980 |
| 4239904 | Process for the preparation of urethanes A process for the preparation of urethanes by reacting a tertiary amine, an alcohol and carbon monoxide in the presence of a catalytic quantity of a copper salt, oxygen and a dehydrating agent is disclosed. The reaction is preferably carried out using a c... | 12/16/1980 |
