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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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3751465 |
PREPARATIONS OF N,N-DIALKYL-SUBSTITUTED FATTY AMIDES FROM NITRILES AND ALCOHOLS AND N,N-DIALKYLFORMAMIDES FROM HYDROGEN CYANIDE AND ALCOHOLS
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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... |
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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... |
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3574760 |
PROCESS FOR THE PREPARATION OF AMINES
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3523137 |
PREPARATION OF DIAMIDOADAMANTANE COMPOUNDS FROM DIHALOADAMANTANES
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3523136 |
PREPARATION OF DIAMIDOADAMANTANE COMPOUNDS
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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... |
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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... |
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3354207 |
Method of preparing oxamide
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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... |
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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... |
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3234243 |
Title is not available
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3152180 |
Process for the production of nu-tert-alkyl amides and, if desired, nu-tert. alkyl amines
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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-,... |
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3061644 |
Process for producing ethylenediamine or derivatives thereof
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3037055 |
Preparation of oxamide
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2965676 |
Preparation of tertiary hydrocarbon derivatives of oxamide
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2953599 |
Dimethyloloxamide
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2819307 |
Preparation of n-tert-butyl formamide
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2819306 |
Preparation of formamides by reacting hydrogen cyanide with cyclohexene
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2632022 |
Method of preparing 1, 8-diamino-p-menthane
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2601387 |
Preparation of amides having tertiary carbon attached to amido nitrogen
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2573673 |
Method of producing n-mono substituted imidic compounds
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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... |
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1581621 |
Production of amide acid sulphates from nitriles
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1194354 |
Title is not available
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