PROCESS FOR THE PREPARATION OF DIALKYL PYRIDINE-2,3-DICARBOXYLATE AND DERIVATIVES THEREOF FROM DIALKYL DICHLOROSUCCINATE

摘要

There is provided a process for the prepara-tion of substituted and unsubstituted-2,3-pyridinedi-carboxylate compounds by reacting a dialkyl dichloro-succinate with a dehydrohalogenating agent, an ammoniasource and an appropriately substituted [err],[err]-unsaturatedaldehyde or ketone.