13C and 17O NMR spectroscopy show that adducts arising from dithionite reduction of 3- or 3,5-cyano- or carbamoyl-substituted pyridinium salts to the corresponding 1,4-dihydropyridines, are S-anions of esters of the simplest parent sulfinic acid. A pathway for formation of the 1,4- dihydropyridines, involving an intramolecular hydride transfer, is suggested.

ON THE STRUCTURE OF INTERMEDIATE ADDUCTS ARISING FROM DITHIONITE REDUCTION OF PYRIDINIUM SALTS : A NOVEL CLASS OF DERIVATIVES OF THE PARENT SULFINIC ACIDS / Carelli, V; Liberatore, Felice; Scipione, Luigi; Musio, R; Sciacovelli, O.. - In: TETRAHEDRON LETTERS. - ISSN 0040-4039. - STAMPA. - 41:(2000), pp. 1235-1240. [10.1016/S0040-4039(99)02251-0]

ON THE STRUCTURE OF INTERMEDIATE ADDUCTS ARISING FROM DITHIONITE REDUCTION OF PYRIDINIUM SALTS : A NOVEL CLASS OF DERIVATIVES OF THE PARENT SULFINIC ACIDS.

LIBERATORE, Felice;SCIPIONE, Luigi;
2000

Abstract

13C and 17O NMR spectroscopy show that adducts arising from dithionite reduction of 3- or 3,5-cyano- or carbamoyl-substituted pyridinium salts to the corresponding 1,4-dihydropyridines, are S-anions of esters of the simplest parent sulfinic acid. A pathway for formation of the 1,4- dihydropyridines, involving an intramolecular hydride transfer, is suggested.
2000
01 Pubblicazione su rivista::01a Articolo in rivista
ON THE STRUCTURE OF INTERMEDIATE ADDUCTS ARISING FROM DITHIONITE REDUCTION OF PYRIDINIUM SALTS : A NOVEL CLASS OF DERIVATIVES OF THE PARENT SULFINIC ACIDS / Carelli, V; Liberatore, Felice; Scipione, Luigi; Musio, R; Sciacovelli, O.. - In: TETRAHEDRON LETTERS. - ISSN 0040-4039. - STAMPA. - 41:(2000), pp. 1235-1240. [10.1016/S0040-4039(99)02251-0]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/252099
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