J. Wibaut
Sep 2, 2010
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0
Influential Citations
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Journal
Recueil des Travaux Chimiques des Pays-Bas
Abstract
2,6-Dichloropyridine-4-carboxylic acid (II) is converted by catalytic reduction with nickel in alkaline medium into pyridine-carboxylic acid (III). If the catalytic reduction of II is carried out in glacial acetic acid and with platinum (Adams) as a catalyst, piperidine-4-carboxylic acid (IV) is formed in one operation which substance is also obtained by the catalytic reduction of iso nicotinic acid under the same circumstances. 2,6-Dichloro-4-cyanopyridine (V) was treated under varying conditions with hydrogen in the presence of catalysts; in these experiments the substance V was recovered unchanged.