34 research outputs found
Can the absence of solvation of neutral reagents by ionic liquids be responsible for the high reactivity in base-assisted intramolecular nucleophilic substitutions in these solvent?
No full textThe kinetics of the rearrangement of the Z-phenylhydrazone
of 3-benzoyl-5-phenyl-1,2,4-oxadiazole (1a) into the relevant
4-benzoylamino-2,5-diphenyl-1,2,3-triazole (2a) induced by
amines have been studied in two room-temperature ionic
liquids (IL-1, [BMIM][BF4] and IL-2, [BMIM][PF6]). The
data collected show that the reaction occurs faster in ionic
liquids than in other conventional solvents previously
studied (both polar or apolar, protic or aprotic). Presumably,
this could depend on their peculiar ability to minimize the
strong substrate-solvent, amine-solvent and amine-amine
interactions occurring in conventional solvents
Studio cinetico della reazione di eliminazione di 1,1,1-tribromo-2,2-bis(dimetossifenil)etano in liquidi ionici.
No full textEffect of ionic liquid organizing ability and amine structure on the rate and mechanism of base induced elimination of 1,1,1-tribromo-2,2-bis(phenyl-substituted)ethanes.
No full textThe “perturbative” effect of cosolvents on the structure of neat bmimBF4 and bmimNTf2 evaluated by means of kinetic measurements.
No full textEvidences of the organising ability of ionic liquids on the rate of the elimination reaction.
No full textThe effect of ionic liquids on the rate of an intramolecular nucleophilic substitution: the study of a monocyclic rearrangement of heterocycles
No full textEffetto del cosolvente sulla velocità della reazione di trasposizione eterociclica mononucleare della Z-fenilidrazone del 3-benzoil-5-fenil-1,2,4-ossadiazolo in liquido ionico
No full textStudio cinetico della reazione di sostituzione nucleofila aromatica di alcuni 2-X-3-nitro e 2-X-5-nitrotiofeni in BMIMBF4.
No full textL'assenza di solvatazione può giustificare l'aumento della velocità dei processi di interconversione di anello in liquidi ionici?
No full textReattività degli Z-idrazoni, semicarbazoni e fenilsemicarbazoni del 3-benzoil-5-fenil-1,2,4-ossadiazolo: effetto della struttura della catena laterale
No full text
