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Titolo:
KINETICS OF ADDITION OF N-BUTYLAMINE TO 4'-SUBSTITUTED N-METHYL-2-STRYLPYRIDINIUM IODIDES
Autore:
SHUNMUGASUNDARAM A; THANULINGAM TL; RAJ V; RAJASEKAR A;
Indirizzi:
VHNSN COLL,DEPT CHEM VIRUDUNAGAR 626001 INDIA
Titolo Testata:
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical
fascicolo: 5, volume: 33, anno: 1994,
pagine: 417 - 419
SICI:
0376-4710(1994)33:5<417:KOAONT>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUBSTITUTED BETA-NITROSTYRENES; WATER;
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
5
Recensione:
Indirizzi per estratti:
Citazione:
A. Shunmugasundaram et al., "KINETICS OF ADDITION OF N-BUTYLAMINE TO 4'-SUBSTITUTED N-METHYL-2-STRYLPYRIDINIUM IODIDES", Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 33(5), 1994, pp. 417-419

Abstract

The kinetics of addition of n-butylamine to 4'-substituted N-methyl-2-styrylpyridinium iodides in acetonitrile have been followed spectrophotometrically. The reaction is first order with respect to the substrate and the order in n-butylamine is non-integral. A mechanism involving the formation of the zwitterionic addition complex in the first equilibrium step with subsequent proton transfer in a slow step is proposed. Structure-reactivity study with various 4'-substituents shows that the rate of proton transfer is accelerated by electron-releasing substituents and retarded by electron-withdrawing substituents.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 13:42:40