Oxidative aromatization of Hantzsch 1,4-dihydropyridines in the presence of mixed-addenda vanadomolybdophosphate heteropolyacid, H6PMo9V3O40

Bioorg Med Chem Lett. 2007 Jun 15;17(12):3305-9. doi: 10.1016/j.bmcl.2007.04.002. Epub 2007 Apr 6.

Abstract

A variety of Hantzsch 1,4-dihydropyridines were oxidized to the corresponding pyridines in high yields in the presence of H(6)PMo(9)V(3)O(40), a Keggin type heteropolyacid, in refluxing acetic acid. The heteropolyacid was found to be reusable.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Calcium Channel Blockers / chemical synthesis
  • Calcium Channel Blockers / pharmacology*
  • Dihydropyridines / chemical synthesis
  • Dihydropyridines / pharmacology*
  • Humans
  • Hydrocarbons, Aromatic / chemistry*
  • Models, Chemical
  • Molybdenum / chemistry*
  • Organophosphorus Compounds / chemistry*
  • Oxidation-Reduction
  • Stereoisomerism
  • Vanadium Compounds / chemistry*

Substances

  • Calcium Channel Blockers
  • Dihydropyridines
  • Hydrocarbons, Aromatic
  • Organophosphorus Compounds
  • Vanadium Compounds
  • 1,4-dihydropyridine
  • Molybdenum