The orientation of the COOC2H5??group in the condensation product of malonic ester and β??aminocrotonic acid ester

EC Kooyman, JP Wibaut

文献索引：Kooyman; Wibaut Recueil des Travaux Chimiques des Pays-Bas, 1946 , vol. 65, p. 10,13

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被引用次数: 5

摘要

60th communication on pyridine and quinoline derivatives. ... A proof is given that in the condensation product formed by the interaction of malonic ester and p-aminocrotonic acid ester, namely 2-methyl-4.6dihydroxypyridine- carboxylic acid ester, the CwH,-group occupies the 5-position. This was effected by exchanging the hydroxyl groups for chlorine atoms and subsequently replacing these atoms by hydrogen atoms. The structure of the resulting 2-methylpyridine- ...