Por favor, use este identificador para citar o enlazar este ítem: http://repositorio.iniap.gob.ec/handle/41000/1166
metadata.dc.type: Tesis
metadata.dc.creator: Rivera, Fausto Ramiro
Título : Micellar effects upon the hydrogen ion and general acid catalyzed hydration of 1,4-Dihydropyridines
Palabras clave : QUÍMICA
Fecha de publicación : mar-1978
Editorial : Santa Barbara: University of California, 1978. 87 p.
metadata.dc.identifier.other: *EC-INIAP-BEESC, Quito (T/R621m)
metadata.dc.format.extent: 3 p.
metadata.dc.coverage.spatial: E. E. Santa Catalina
Resumen : The rate limiting step in the hydration of 1-benzyl-l, 4 — dihydronicotinamide (1a) and 1-benzyl-3-acetyl-l, 4- dihydropyridine (.lb) is; a slow proton transfer, as shown by the kinetic deuterium solvent isotope effects and buffer catalysis. Reactions in dilute HC1 are strongly inhibited by cationic micelles of cetyltrimethylammonium bromide, CTABr, and the inhibition can be related to the micellar binding of the substrates determined spectrophotometrically or by solubility. Anionic micelles of sodium lauryl sulfate, NaLS, only weakly catalyze hydration in dilute HC1, and rate constants go through maxima with increasing [NaLS].
metadata.dcterms.bibliographicCitation: Rivera, Fausto R. (1978). Micellar effects upon the hydrogen ion and general acid catalyzed hydration of 1,4-Dihydropyridines. (Tesis de Maestría). University of California, Santa Barbara.
URI : http://repositorio.iniap.gob.ec/handle/41000/1166
Aparece en las colecciones: Tesis EESC

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