Tetrahedron

Electrochemical behaviour of an unsymmetrical 4-(o-nitrophenyl)-1, 4-dihydropyridine in protic medium

JY David, JP Hurvois, A Tallec, L Toupet

Index: David, J. Y.; Hurvois, J. P.; Tallec, A.; Toupet, L. Tetrahedron, 1995 , vol. 51, # 11 p. 3181 - 3196

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Citation Number: 20

Abstract

The electrochemical behaviour of 3-cyano-5-methoxycarbonyl-2, 6-dimethyl-4 (o- nitrophenyl)-1, 4-dihydropyridine and the corresponding N-methyl derivative have been investigated in hydroalcoolic medium. The 4 electron reduction leads to an amino- benzonaphtyridine N-oxide (cyclization from the reaction of the hydroxylamino group with the cyano substituent) when performed in acidic medium; in basic medium, the same ...