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7547805 |
Catalytic preparation of severely sterically hindered amino-ether alcohols using a metal loaded catalyst
The present invention relates to a process for the production of severely sterically hindered amino-ether alcohols using a catalyst based on the combination of one or more catalytically active...
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7183438 |
Catalysts and method for the production of amines
Disclosed are catalysts, the catalytically active mass of which contains 22 to 40 percent by weight of oxygen-containing compounds of zirconium, calculated as ZrO 2 , 1 to 30 percent by weight of...
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7057073 |
Synthesis of trinitrophloroglucinol and triaminotrinitrobenzene (TATB)
A method to convert surplus nitroarene explosives into trinitrophloroglucinol and triaminotrinitrobenzene (TATB) is described. Picric acid is directly aminated to diaminopicric acid, which is...
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7057072 |
Synthesis and purification of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)
A method to convert surplus nitroarene explosives (picric acid, ammonium picrate,) into TATB is described. The process comprises three major steps: conversion of picric acid/ammonium picrate into...
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7034186 |
Preparation of an amine
Process for preparing an amine by reacting a primary or secondary alcohol, aldehyde or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia and primary and...
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6281371 |
Lipopolyamines, and the preparation and use thereof
The present invention relates to new lipopolyamines (including salts thereof) characterised by a symmetrical, highly flexible lipophilic moiety having buffering capacity at physiological pH, and to...
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5750786 |
Process for the preparation of unsubstituted and substituted diaryl phenylenediamines
The present invention relates to a process for the preparation of unsubstituted and alkyl-substituted diaryl-phenylenediamines.
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5710335 |
Process for preparing 3-(N,N-disubstituted amino)phenol
A process for preparing a 3-(N,N-disubstituted amino)phenol is herein disclosed which comprises reacting resorcin with a primary amine represented by formula (2): R 1 NH 2 ...
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5665126 |
Adducts of quinone compounds and amine-containing polymers for use in lubricating oils and in fuels
Adducts useful as fuel or lubricating oil additives are disclosed. The adducts comprise the reaction product of at least one quinone compound and an amine-containing polymeric material comprising...
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5639718 |
Multifunctional viscosity modifiers for lubricating oil compositions with improved dispersancy and antioxidancy derived from adducts of quinone
An oil-soluble lubricating oil and fuel additive, useful as a multifunctional viscosity modifier comprising succinimide and other amine-containing polymers reacted with a quinone or substituted...
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5576274 |
Fuel and lubricant additives derived from dihydroxy-aromatic compounds
The present invention relates to a novel process for the production of fuel and lubricant additives useful as dispersants and multifunctional viscosity modifiers wherein a dihydroxyaromatic...
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5399277 |
Fuel and lubricant additives derived from dihydroxyaromatic compounds
The present invention relates to a novel process for the production of fuel and lubricant additives useful as dispersants and multifunctional viscosity modifiers wherein a dihydroxyaromatic...
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5371294 |
Process for the preparation of a mixture of cyclohexylamine and dicyclohexylamine
Cyclohexylamine and dicyclohexylamine can be prepared as a mixture with one another by reaction of phenol with aniline, ammonia or a mixture of aniline and ammonia in the presence of hydrogen over...
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5245081 |
Preparation of N,N-disubstituted m-aminophenols
The preparation of N,N-disubstituted m-aminophenols from resorcinol, which is reacted, in a first step, with primary amines to form N-monosubstituted m-aminophenols, which are treated in situ, in a...
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5130489 |
Process for the preparation of M-aminophenols from resorcinol
An improved process is provided for producing m-aminophenols comprising reacting resorcinol and an amino compound in an inert organic solvent and in the presence of an aluminosilicate catalyst.
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5113018 |
Method of producing N-alkylaminophenols
N-alkyl amino phenols, such as N-ethyl-m-amino phenol are produced in high yield and with high purity by reacting a divalent phenol, such as resorcinol, with an alkylamine, such as ethylamine, in...
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4675444 |
Process for producing aminophenols
A process for producing an aminophenol, which comprises (A) a step of reacting a dihydric phenol with an aminating reagent in the liquid state under heat in the presence of water and a...
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4609760 |
Process for the preparation of 2,6-xylidine
An improved process for the preparation of 2,6-xylidine by amination of 2,6-dimethylphenol in the vapor phase with ammonia in the presence of an aluminum oxide catalyst is disclosed. According to...
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4585896 |
Process for the production of an aminophenol
In a process for the production of an aminophenol which comprises reacting a divalent phenol and ammonia in the absence of a catalyst or in the presence of a water-soluble catalyst, then separating...
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4485260 |
Preparation of unsymmetrical diphenylamines
There is disclosed a process for the production of unsymmetrical, substituted diarylamines by the reaction of a primary aromatic amine and a substituted phenol wherein the phenol is held in excess...
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4448993 |
Process for conversion of hydroxybenzenes to amines
Hydroxybenzenes are converted to the corresponding amines by contacting the hydroxybenzene and ammonia at temperatures of about 250°-550° C. and pressures of about 0-5000 psig with a novel...
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4400537 |
Process for 1,4-phenylenediamine
A process for the preparation of 1,4-phenylenediamine from 1,4-dihydroxybenzene at a temperature within the range of from about 300° C. to 450° C. and a pressure of from atmospheric to 3000 psig...
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4380669 |
Process for synthesizing aniline
A process for converting phenolic compounds to aniline by passing them over ammonia in the presence of ZSM-5 type zeolites under conversion conditions whereby high conversion, high selectivity and...
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4326080 |
Process for the preparation of 4-amino-diphenylamines
A process for the preparation of a 4-aminodiphenyl amino derivative which comprises: (a) contacting a hydroxybenzene of the formula ##STR1## wherein R is hydroxyl or amino with an aniline...
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4148823 |
Process for preparing p-arylaminophenols with aluminum sulfate or carboxylate
Process for the preparation of a p-arylaminophenol by reacting hydroquinone with a primary arylamino in the presence of a catalytic amount of aluminum sulfate or an aluminum lower carboxylate.
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4125560 |
Aromatic amines synthesis process and products resulting from application of this process
The invention pertains to an aromatic amines synthesis process, fundamentally characterized by the fact that it consists of carrying out the ammonolysis of phenols under pressure in liquid phase by...
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4067903 |
Manufacture of arylamines
Arylamines are manufactured by reacting alcohols with amines in the presence of phosphorus-III compounds. The arylamines I manufactured by the process of the invention are intermediates for the...
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3965182 |
Preparation of aniline from phenol and ammonia
Aromatic amines are made by reacting a phenol with aluminum nitride and either ammonia or a primary or secondary amine at temperatures from 200°-600°C. For example, 2,6-dimethyl-phenol reacts...
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3960962 |
Process for replacing the hydroxy group of an aromatic hydroxy compound with an amine group
Aromatic hydroxy compounds (e.g., 2,6-dimethylphenol) are converted to the corresponding aromatic amine (e.g., 2,6-dimethylaniline) by reaction with ammonia at elevated temperatures in the presence...
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3927099 |
Process of preparing catalyst free aromatic diamines
Primary amines and polyhydroxy aromatic compounds are condensed in the presence of iron halide catalysts to produce diamine antioxidants. Iron is known to accelerate oxidative degradation. Its...
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3860650 |
PROCESS FOR THE PRODUCTION OF ORGANIC AMINES
A process and catalyst for the production of organic amines by amination of phenolic type compounds are shown. The catalyst consists essentially of alumina derived from a precipitated gel form and...
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3626010 |
PREPARATION OF AMINES FROM METAL ARYLOXIDES
Metal aryloxides in which the metal is an alkali metal, alkaline earth metal, aluminum, zinc, titanium, hafnium, zirconium, boron, lead, or niobium are converted to aryl amines by reaction with...
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3546293 |
AMINO PHENOLS
Compounds suitable for use in one step hair and keratin fiber dyeing compositions which do not require the use of separate dye modifiers and are exceptionally color stable, having the formula IN...
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3510518 |
PREPARATION OF N,N-DIARYL-P-PHENYLENEDIAMINES
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3450764 |
PREPARATION OF HYDROXY SUBSTITUTED DIARYLAMINES
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3432460 |
ANTIOZONANTS
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3351609 |
Aryl-beta-hydroxyethyl ethers as antiozonants
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3337524 |
Monoazo compounds containing a dihydroxyphenyl group and a 2-amino-8-naphthol group
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3305584 |
Process of preparing catalyst free aromatic diamines
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3278548 |
Water-soluble phthalocyanine dyestuffs
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3271453 |
2, 5-di-tert-butyl-nu, nu'-diaryl-p-phenylenediamines
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3214472 |
N-(substituted-phenyl)-2, 4-dihydroxy-anilines
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3194838 |
Process for preparation of alpha-hydroxy-beta-alkyl-aminonaphthalene
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3149933 |
Process for stabilizing liquid fuels
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3102913 |
Process for preparing m-(di-lower-alkylamino)phenols
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3081349 |
Catalysts for condensation reactions of primary amines with dihydroxy aromatic compounds
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2843468 |
Stabilized hydrocarbon compositions and antioxidant therefor
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2824137 |
Methods of preparing secondary aromatic amines
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2780647 |
Process for preparing hydroxy diphenylamines
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3632611 |
Title is not available
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