Pan Qing-cai
2011
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Journal
Chemistry World
Abstract
Three kinds of N-alkyl-4-chloro-2-pyridine carboxamides were synthesized from methyl amine(25%),n-butylamine,isopropylamine and 4-chloropyridine-2-carboxylic acid methyl ester,which was obtained from 2-pyridine-carboxylic acid by chlorination and esterification with NaBr as catalyst,and post-treated by vacuum distillation.The structures of the target compounds were confirmed by IR,~1H NMR and ESI-MS.