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7960585 |
Process for preparing secondary amides by carbonylation of a corresponding tertiary amine
The present invention relates to a process for preparing secondary amides with good selectivity by carbonylating a corresponding tertiary amine with carbon monoxide in a reaction mixture in the...
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6642420 |
Method for producing aldehydes and/or alcohols or amines
A process for the preparation of aldehydes and/or alcohols or amines by reacting olefins in the liquid phase with carbon monoxide and hydrogen, a part of these gases being dispersed in the form of...
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6441233 |
Process for the preparation of aromatic carboxylic acid amides
A process for the preparation of primary aromatic carboxamides by the carbonylation of an aromatic compound, which contains at least one leaving group, with carbon monoxide, in the presence of a...
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6441234 |
Production of formamide using sodium diformylamide
In the process for preparing formamide by reaction of ammonia and carbon monoxide in the presence of at least one catalyst, sodium diformylamide is used as catalyst. If sodium methoxide is used as...
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6326517 |
Method of producing benzamides
A method of producing benzamides represented by the following general formula (1): ##STR1##where R is trifluoromethyl group, trifluoromethyloxy group, halogen (fluorine, chlorine, bromine or...
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5919979 |
Preparation of alkyl formamides
This invention relates to an improvement in a process for the production of an alkyl formamide, wherein a gas-containing carbon monoxide is reacted at elevated temperature and pressure in reaction...
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5672750 |
Preparation of aromatic amides from carbon monoxide, an amine and an aromatic chloride
The present invention is directed to a process for preparing an aromatic amide. More specifically, the process involves reacting carbon monoxide, an amine and an aromatic chloride in the presence...
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5436356 |
Carbonylation process
A process for the carbonylation of ethylenically unsaturated compounds by reaction with carbon monoxide and a co-reactant in the presence of a substantially non-acidic catalyst system based on a...
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5312984 |
Amidation of vinyl chloride with dimethylamine using a supported palladium catalyst
A continuous process for making N,N-dimethylacrylamide (NNDMA) is disclosed which uses a commodity chemical, namely vinyl chloride (VCl), which is amidated with dimethylamine (DMA) and carbon...
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5241048 |
Organic syntheses employing supercritical carbon dioxide as a reaction solvent
Chemical reactions are readily carried out using supercritical carbon dioxide as the reaction medium. Supercritical carbon dioxide is of special value as a reaction medium in reactions for...
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5189221 |
Amine separation process
A mixture of C1 -C4 mono-, di- and trialkylamines is separated by adding at least about an equimolar amount, based on the amine mixture, of a formyldialkanolamine selected from the group consisting...
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5159113 |
Process for the palladium-catalyzed amidation of vinyl chloride
A unique two-step process is disclosed for the surprisingly high rate of amidation of vinyl chloride (VCl) with carbon monoxide and certain amines catalyzed by an effective amount of monodentate...
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5128475 |
Preparation of amides
A process for the preparation of an amide, which comprises reacting an acetylenically or olefinically unsaturated compound with carbon monoxide and a nitrogen compound selected from ammonia and a...
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5001268 |
Preparation of N-arylsubstituted amides
The N-arylsubstituted amides, e.g., N-phenylformamide and acetanilide, are prepared by reacting at least one nitroaromatic compound with carbon monoxide and at least one carboxylic acid, in liquid...
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4937380 |
3-pentenamides from 1,3-butadienes
1,3-butadienes are catalytically hydrocarbamylated to make 3-pentenamides.
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4918222 |
Process for synthesis of N-acetylglycine
An N-acetylglycine is manufactured by reacting paraformaldehyde with an acetamide and carbon monoxide in the present of a cobalt-containing catalyst promoted by a sulfoxide or dinitride compounds....
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4892687 |
Process for synthesis of amidoacids using a cobalt catalyst and a bidental phosphine ligand
A process is disclosed for producing N-acetyl-aminoacid which comprises reacting a feedstock from the group consisting of simple olefins, acetamide and synthesis gas with a catalyst comprising a...
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4866177 |
Process for one-step synthesis of amides
A N-alkyl amide derivative is synthesized in one-step by reacting an olefin, nitrogen-containing compound and carbon monoxide with a catalyst comprising a rhodium-containing compound in the...
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4847411 |
1,6-hexanediamides from 3-pentenamides
A process for making a diamide of the formula ##STR1## by reacting a monoamide compound of the formula ##STR2## with CO and an amine or ammonia of the formula R7 R8 NH in the liquid phase under...
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4761499 |
Carbonylation of vinyl dihalides
High yields of olefinic esters and amides, and the like are derived from a process wherein vinyl dihalides are carbonylated in the presence of a palladium catalyst and a primary or secondary amine...
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4704409 |
Reaction products of polyols with bicyclic amide acetals and their application in polyurethane polymers
A process for preparing a poly(alkylene amido-ether) polyols by reaction of a bicyclic amide acetal with a polyol at a temperature in the range of from 140°-240° C. and the use of these p...
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4691048 |
Process for reducing carbonylation of aldehydes, uses as hemiacetalesters, catalyzed by cobalt carbonyl complexes
The invention concerns a process for reducing carbonylation of an aldehyde wherein the aldehyde is used as hemiacetalester, the reaction being conducted in the presence of a catalyst consisting of...
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4613684 |
Process for the preparation of carboxylic acid esters
A commercially economical process for preparing a carboxylic acid ester from a carboxylic acid amide is disclosed. The process is very meritorious, since it produces neither ammonia nor ammonium...
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4594445 |
Carbonylation process for the production of aromatic acids and derivatives thereof
The present invention provides a process for the preparation of aryl carboxylic acids and derivatives thereof by the carbonylation of diaryliodonium salts. The diaryliodonium salts are reacted with...
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4588833 |
Process for the preparation of substituted succinic acid amides
Substituted succinic acid amides, in particular substituted succinic acid amides containing differing derivative groups, are prepared by reacting unsaturated carboxamides with carbon monoxide and...
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4582929 |
Method of recovering halide values from carbonylation reaction mixtures
This invention is a process for the carbonylation of an organic halide to prepare a carbonyl-containing compound, and recovery of halogen values in a useful form which comprises (a) contacting an...
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4565866 |
Method for the preparation of formamides
The instant invention relates to a process for the preparation of formamides in which ammonia, a primary or a secondary amine is reacted with carbon monoxide at an elevated temperature and pressure...
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4558157 |
Synthesis of dimethylformamide
In the catalytic reaction of ammonia or formamide with CO and H2, exceptionally high yields of mono- and di-methyl formamide are obtained among the reaction products when the reaction is carried...
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4556734 |
Process for synthesizing formamides from synthesis gas plus ammonia
A process is disclosed for the production of formamides, particularly N,N-dimethylformamide and N-methylformamide, by the reaction of synthesis gas with ammonia in the presence of a catalyst system...
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4554345 |
Preparation of liquid polyamide from dinitrile and diamine
This invention describes a process for preparing liquid polyamides comprising contacting a nitrile, amine and water in the presence of a carbon dioxide catalyst.
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4539427 |
Process for the preparation of formamides
Formamides e.g. diethylformamide are prepared by reacting a primary or secondary amine e.g. diethylamine or ammonia with (a) an alkyl formate or (b) carbon monoxide and an alkanol in the presence,...
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4529440 |
Chemicals from coal
A process for the coproduction of molten ferrous metals and hydrogen-carbon monoxide adducts from a blast furnace whose hot blast is replaced by oxygen and a suspension of coal in recycle gas;...
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4529822 |
Process for the preparation of formamide compounds
This invention relates to preparing formamide compounds in a process which comprises reacting an amine with a formylalkanolamine in the presence of carbon monoxide in which the mole ratio of amine...
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4510326 |
Process for the preparation of formylalkanolamines
A process for the preparation of a formylalkanolamine which comprises reacting carbon monoxide with an alkanolamine at a temperature ranging from about 60° to 300° C. and at a pressure ranging f...
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4447640 |
Preparation of α-unsaturated carboxylic esters and amides from 1,2-dihaloalkanes by carbonylation
The invention is a process for preparing α-unsaturated carboxylic esters or amides comprising contacting a 1,2-dihaloalkane, an alcohol or amine, and carbon monoxide, in the presence of a ...
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4379928 |
Synthesis of amides
Alkyl amides have been synthesized from cyclic anhydrides, carboxyl acids and their esters by contacting them with an amine carbamic acid salt.
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4302598 |
Recycling catalyst in preparation of dimethylformamide from dimethylamine and carbon monoxide
The alkali metal methylate catalyst used in the preparation of dimethylformamide from dimethylamine and carbon monoxide can be preserved, recycled and reused if the reaction mass contains...
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4269998 |
Production of dialkyl formamide
Dialkyl formamides may be prepared by treating the corresponding dialkyl amine with carbon dioxide and hydrogen in the presence of a transition metal hydrogenation catalyst at a temperature in the...
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4251460 |
Process for production of dimethylformamide
A process for producing dimethylformamide which comprises reacting methanol and ammonia to give methylamines, separating a dimethylamine-trimethylamine mixture from the methylamines, and reacting...
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4244889 |
Production of acetamides with rhodium-manganese catalysts
A heterogeneous process for selectively producing acetamides in which the acyl nitrogen is otherwise bonded to methyl, ethyl, hydrogen or combinations thereof which comprises contacting a mixture...
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4230636 |
Process for producing dimethyl formamide
Dimethyl formamide is produced in high yield with good selectivity by reaction of monomethylamine and trimethylamine, or together with dimethylamine, with carbon monoxide in the presence of...
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4224243 |
Process for producing dimethyl formamide
Dimethyl formamide with a high purity is produced in a high yield and a high selectivity by reaction of a mixture of monomethylamine and/or monomethyl formamide and trimethylamine, or the mixture...
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4222959 |
Process for the preparation of aromatic formamides
A process for the preparation of aromatic formamides by reacting an aromatic amine with carbon monoxide in the presence of a solvent, a catalytic quantity of a copper salt and oxygen, or an...
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4218398 |
Process for producing dimethylformamide
Dimethylformamide mgproduced by reaction of monomethylamine and trimethylamine at a molar ratio of trimethylamine to monomethylamine of 0.1-10, with carbon monoxide in the presence of 1-500 mg. a...
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4140716 |
Process for making an amide of formic acid and forming nitrodiarylamine therefrom
Use of alkali metal salts of the formyl derivatives of aromatic amines to initiate the formation of formamides from carbon monoxide and amines and conversion of the products to nitrodiarylamine are...
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4101577 |
Process for making lower alkyl formamides
A process for making formamides by contacting an intimate admixture of (a) gaseous CO, (b) a non-tertiary amine and (c) a lower alkanol with a strongly basic anion exchange resin.
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4098820 |
Process for the production of formamides
The invention relates to an improved process for the production of a formamide, wherein a current of a gas containing carbon monoxide is reacted at elevated temperature (50°-200° C) and pressure (...
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4097524 |
Process for the preparation of formamides
A process for the preparation of formamides by reacting a tertiary amine with carbon monoxide in the presence of a solvent, a catalytic quantity of a copper salt and oxygen or an oxygen-containing...
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4094905 |
Process for producing dimethyl formamide
Dimethyl formamide is produced in high yield with high selectivity by reaction of monomethyl formamide with trimethylamine and carbon monoxide in the presence of a catalyst such as halogen...
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3988358 |
Process for the preparation of carboxylic acid esters from organic halides
Carboxylic acid esters or amides are obtained from aryl, heterocyclic, vinylic, ethynylic, and benzylic halides and substituted derivates thereof, by reacting same with an alcohol or primary or...
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