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8975440 Method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid  
The invention relates to a method for producing a carboxylic acid amide from a carbonyl compound and hydrocyanic acid, comprising the steps of A) reacting a carbonyl compound with hydrocyanic acid...
6441231 Optically active quarternary ammonium salt with axial chirality, method for producing thereof, and application thereof for asymmetric synthesis of α-amino acid  
A novel optically active quarternary ammonium salt with an axial chirality is provided. The quarternary ammonium salt can act as a phase-transfer catalyst to convert glycine derivatives into...
6184414 Process for producing ammonium-2-hydroxy-4-(methylthio)-butyrate, mixtures containing the same in liquid form and their use  
Process for producing ammonium-2-hydroxy-4-(methylthio)-butyrate, mixtures containing the same in liquid form and their use. In order to produce ammonium-2-hydroxy-4-methylthio-n-butyrate and...
6124501 Process for preparing lactamide  
A process for preparing lactamide with a high conversion and a high selectivity without the deterioration of a catalytic activity in a short time, which comprises subjecting lactonitrile to a...
5756842 Process for preparing lactamide  
There is herein disclosed a process for preparing a lactamide by hydrating lactonitrile in the presence of a catalyst mainly comprising a manganese oxide, and a nitrogen-containing compound such...
5488158 Production in continuous of oxamide for the catalytic oxidation of HCN  
A continuous process for the production of oxamide is based on the catalytic oxidation of hydrogen cyanide with oxygen or air in a strong excess in a solution of copper nitrate in water-acetic...
5449808 Method for converting amides to nitriles and nitriles to amides  
A process which comprises contacting and catalytically reacting under essentially anhydrous conditions in the liquid phase an amide with a nitrile according to the equation: RCONH2 +R1 CN⇋RCN+R1...
5068429 Method of purification of the oxalic acid diamide  
A method of removing copper from oxamide obtained through a process which involves the use of copper catalysts, by contacting it with an aqueous solution of a suitable complexing agent, which is...
5047587 Process for purifying oxalic acid diamide  
A process is disclosed for the purification of the diamide of oxalic acid obtained by means a process wherein copper catalysts are used, by means of the washing with aqueous solutions of an...
4246199 Process for the preparation of N-alkyl-substituted carboxylic acid amides  
An improved process for the preparation of N-alkyl-substituted carboxylic acid amides by reaction of a component which forms a carbonium ion with a nitrile, the improvement residing in carrying...
4131642 Treatment of the waste from the production of tertiary butyl amine to recover sodium sulfate and methyl or sodium formate  
Isobutylene, hydrogen cyanide and sulfuric acid are reacted to produce tertiary butyl formamide, which is hydrolyzed by sodium hydroxide to produce tertiary butyl amine. The tertiary butyl amine...
4096184 Process for preparing acid amides  
A process for preparing acid amides by hydration of the corresponding nitrile compounds with water in the presence of a catalyst, characterized in that the catalyst is the one prepared by treating...
3989753 Process for the preparation of oxamide  
By contacting hydrogen cyanide with oxygen or air and a catalyst solution containing water, low molecular weight aliphatic carboxylic acids, copper ions and nitrate ions oxalic acid diamide is...
3937732 Oxamide by hydrolysis of cyanogen  
A method for collecting a solid product from a liquid phase or liquid phase-gaseous phase feed stock. A solid forming zone is provided for accommodating the liquid phase or liquid phase-gaseous...
3933910 Process for the production of ketazines  
A process for the production of ketazine corresponding to the general formula ##EQU1## in which: R1 and R2 are independently linear or branched alkyl radicals of from 1 to 8 carbon atoms or a...
3928444 Process for hydrolyzing dicyan  
Oxamide is prepared by hydrolyzing dicyan in an aqueous solution containing as catalyst (a) one or more molybdates and/or tungstates, (b) at least one metal ion selected from the group consisting...
3898280 Manufacture of carboxylic acid amides  
An improved process for the manufacture of N-monosubstituted carboxylic acid amides in which the substituent is bonded to the nitrogen via a non-aromatic tertiary carbon atom, by reaction of...
3882175 Process for the preparation of N,N-dialkylformamides  
An improved process for the preparation of N,N-dialkylformamides useful as solvents by the reaction of hydrocyanic acid with an alcohol represented by the formula ROH wherein R is an alkyl group...
3879457 Process for the production of pure n-alkyl formamides  
N-alkyl formamides or the corresponding N-cycloalkyl or N-aralkyl formamaides are prepared by reacting olefins, cycloolefins or aralkenes with hydrogen cyanide in the Ritter reaction using about...
3857886 PROCESS FOR THE PRODUCTION OF PURE N-ALKYL FORMAMIDES  
Pure N-alkyl formamides are obtained by reacting an olefin or alcohol with hydrogen cyanide according to the Ritter reaction in the presence of an acid. The N-alkyl formamide formed is extracted...
3758576 PROCESS FOR THE PREPARATION OF N,N-DIALKYLAMIDES  
N,N-dialkyl carboxylic acid amides are prepared by reacting a primary amine, second amine or tertiary amine, or a mixture thereof, with a nitrile at elevated temperatures and pressures, with or...
3751465 PREPARATIONS OF N,N-DIALKYL-SUBSTITUTED FATTY AMIDES FROM NITRILES AND ALCOHOLS AND N,N-DIALKYLFORMAMIDES FROM HYDROGEN CYANIDE AND ALCOHOLS  
3714251 PROCESS FOR THE PRODUCTION OF OXAMIDE  
1303324 Oxamide DEUTSCHE GOLDUND SILBER - SCHEIDEANSTALT 16 April 1970 [16 April 1969] 18184/70 Heading C2C Oxalic acid diamide (i.e. oxamide) is prepared by hydrolysing cyanogen with, water in...
3600441 PROCESS FOR THE PRODUCTION OF OXAMIDE  
1,251,721. Preparation of oxamide. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. 28 Feb., 1969 [2 March, 1968], No. 10833/69. Heading C2C. Oxamide is produced by reacting dicyanogen in the absence of...
3574760 PROCESS FOR THE PREPARATION OF AMINES  
3523137 PREPARATION OF DIAMIDOADAMANTANE COMPOUNDS FROM DIHALOADAMANTANES  
3523136 PREPARATION OF DIAMIDOADAMANTANE COMPOUNDS  
3503953 FIBER REACTIVE DYES CONTAINING AT LEAST ONE METHYLOLATED,ALKOXYMETHYLOLATED OR ACYLOXYMETHYLOLATED IMINOBIS PROPIONAMIDE GROUP  
1,218,479. Dye precursors. AMERICAN CYANAMID CO. 23 Dec., 1968 [27 Dec., 1967], No. 61215/68. Heading C2C. [Also in Division C4] p - Amino - N,N - bis(2 - carbamoylethyl)- benzamide is prepared...
3419611 Hydrated 1,3-diaminoadamantanes and preparation thereof  
1,3-Diaminoadamantanes are prepared by heating 1,3 - diformamidoadamantanes with aq. mineral acid of 5-80% strength, until hydrolysis is substantially complete. Preferably, the products are...
3354207 Method of preparing oxamide  
3338967 Process for preparing secondary-alkyl primary amines from olefins  
A process for the preparation of N-mono-substituted - secondary - alkyl amides comprises reacting one molecule of an olefine with one molecule of a nitrile and one molecule of water in the...
3294840 Production of dihydrodicyclopentadienylamine  
Dihydrocyclopentadienylamine is prepared by reacting dicyclopentadiene with hydrocyanic acid in the presence of concentrated sulphuric acid at a temperature of from -5 DEG C. to 35 DEG C., the...
3234243 Title is not available  
3152180 Process for the production of nu-tert-alkyl amides and, if desired, nu-tert. alkyl amines  
3078270 Derivatives of benzothiadiazine-1, 1-dioxide  
New cpds. have general formula : (wherein X is Cl, Br, or CF3; R is H or alkyl; R1 is COOH, COO-lower alkyl, CONH2, CONH-alkyl or CON(alkyl)2). Esp. pref are 3-carboxy-6-chloro-,...
3061644 Process for producing ethylenediamine or derivatives thereof  
3037055 Preparation of oxamide  
2965676 Preparation of tertiary hydrocarbon derivatives of oxamide  
2953599 Dimethyloloxamide  
2819307 Preparation of n-tert-butyl formamide  
2819306 Preparation of formamides by reacting hydrogen cyanide with cyclohexene  
2632022 Method of preparing 1, 8-diamino-p-menthane  
2601387 Preparation of amides having tertiary carbon attached to amido nitrogen  
2573673 Method of producing n-mono substituted imidic compounds  
2457660 N-tertiary alkyl amides and method for preparing same  
This invention relates to N-tertiary alkyl organic acid amides and particularly to amides containing a tertiary carbon atom attached to an amido nitrogen. The invention also relates to a novel...
1581621 Production of amide acid sulphates from nitriles  
1194354 Title is not available  

Matches 1 - 47 out of 47