Oxidative aromatization of Hantzsch 1,4-dihydropyridines in the presence of mixed-addenda vanadomolybdophosphate heteropolyacid, H6PMo9V3O40.
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.
Heravi
Majid M
MM
Department of Chemistry, School of Sciences, Azzahra University, Vanak, Tehran, Iran. mmh1331@yahoo.com
Derikvand
Fatemeh
F
Hassan-Pour
Shahla
S
Bakhtiari
Khadijeh
K
Bamoharram
Fatemeh F
FF
Oskooie
Hossein A
HA
D002121:Calcium Channel Blockers / Q000138:chemical synthesis / Q000494:pharmacology*; D004095:Dihydropyridines / Q000138:chemical synthesis / Q000494:pharmacology*; D006801:Humans; D006841:Hydrocarbons, Aromatic / Q000737:chemistry*; D008956:Models, Chemical; D008982:Molybdenum / Q000737:chemistry*; D009943:Organophosphorus Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D013237:Stereoisomerism; D017968:Vanadium Compounds / Q000737:chemistry*
D002121:Calcium Channel Blockers; D004095:Dihydropyridines; D006841:Hydrocarbons, Aromatic; D009943:Organophosphorus Compounds; D017968:Vanadium Compounds; C038806:1,4-dihydropyridine; D008982:Molybdenum