PROCESS FOR THE PREPARATION OF DIALKYL 2,3-PYRIDINEDI- CARBOXYLATE AND DERIVATIVES THEREOF FROM AN ALPHA, BETA-UNSATURATED OXIME AND AN AMINOBUTENEDIOATE

摘要

31,820-00 PROCESS FOR THE PREPARATION OF DIALKYL 2,3PYRIDINEDICARBOXYLATE AND DERIVATIVES THEREOF FROM AN .alpha.,.beta.-UNSATURATED OXIME AND AN AMINOBUTENEDIOATE There is provided a convenient process for the preparation of commercially useful pyridinedicarboxylate compounds by the condensation of an .alpha.,.beta.unsatureated oxime and an aminomaleate or aminofumarate or mixtures thereof.