113118-75-5Relevant articles and documents
SYNTHESIS OF SUBSTITUTED 3-PYRIDINECARBOXALDEHYDES
Comins, Daniel L.,Herrick, James J.
, p. 2159 - 2164 (2007/10/02)
Treatment of 3-substituted 1-(phenoxycarbonyl)-1,2-dihydropyridines with Vilsmeier reagent (POCl3/DMF) gave 3-substituted 5-formyl-1-(phenoxycarbonyl)-1,2-dihydropyridines, which were aromatized with hot sulfur to provide 5-substituted 3-pyridinecarboxaldehydes. The formylation of 4-substituted 1-(phenoxycarbonyl)-1,4-dihydropyridines and subsequent aromatization gave 4-substituted 3-pyridinecarboxaldehydes.