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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES272411ApriorityCriticalpatent/ES272411A3/en
Publication of ES272411A3publicationCriticalpatent/ES272411A3/en
A process for the preparation of pyridinecarboxylic acids (especially nicotinic acid and isonicotinic acid), by the oxidation of an alkylpyridine (especially beta-picoline, gamma-picoline or 2-methyl-5-ethyl-pyridine) or quinoline, with air, passing a mixture of an alkyl pyridine or quinoline and air, adding or not adding water vapor, through a catalyst and keeping the temperature below 350º C. (Machine-translation by Google Translate, not legally binding)
ES272411A1961-11-271961-11-27A procedure for the obtaining of pyridincarboxylic acids (Machine-translation by Google Translate, not legally binding)
ExpiredES272411A3
(en)