ES231347A1 - Procedure for the preparation of thiophenil-piridyl-amines (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of thiophenil-piridyl-amines (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Evonik Operations GmbH
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Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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Application filed by Degussa GmbH, Deutsche Gold und Silber ScheideanstaltfiledCriticalDegussa GmbH
Priority to ES0231347ApriorityCriticalpatent/ES231347A1/en
Publication of ES231347A1publicationCriticalpatent/ES231347A1/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur
(AREA)
Abstract
Process for obtaining new thiophenyl pyridylamines of the general formula ** (See formula) ** or its salts, the benzene nucleus and/or the pyridine nucleus may be substituted, X preferably represents oxygen, but also an NH or sulfur group, Alk represents an alcohol group, R1 and R2 represent substituted or unsubstituted aliphatic moieties, preferably alkyl radicals, which may be closed together or with the alkyl group Alk to form a ring, optionally containing another heteroatom, characterized in that a secondary thiaphenyl pyridylamine of the general formula ** (See formula) ** is reacted with a carboxylic acid dihalogenide with dissociation of halogenated hydrogen, to give a compound of the general formula ** (See formula) ** and the thiophene-pyridylaminocarboxylic acid halide formed, suitably without isolation thereof, at elevated temperature and optionally in the presence of an alkaline condensing agent, is reacted with dissociation of halogenated hydrogen to obtain a compound of the general formula ** (See formula) ** or is first reacted with a compound of the general formula ** (See formula) ** with dissociation of halogenated hydrogen to obtain a compound of the general formula ** (See formula) ** and this is then reacted with dissociation of halogenated hydrogen with a secondary amine of the formula (see formula) (Machine-translation by Google Translate, not legally binding)
ES0231347A1956-10-151956-10-15Procedure for the preparation of thiophenil-piridyl-amines (Machine-translation by Google Translate, not legally binding)
ExpiredES231347A1
(en)
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