FRANCONETTI GARCÍA , Antonio

En el Capítulo 1 de esta tesis se describe la síntesis de tetrafluoroboratos fluorescentes derivados del catión pirilio conteniendo sustituyentes de diferente naturaleza. Estas síntesis se han realizado siguiendo dos metodologías, que implican el uso de acetofenonas p-sustituidas y benzaldehídos p-sustituidos en presencia del ácido de Lewis...

(A) Failure of Hydrocinnamyl Alcohol with XtalFluor-M: The reaction of hydrocinnamyl alcohol with 2 or 1 in acetonitrile provided an intractable mixture. For this reaction to proceed, the addition of exogenous sources of fluoride, such as Et3N·3HF or Et3N·2HF, was necessary (B) Halogenation of Alcohols with XtalFluor Reagents: Reaction of...

Potential NLO-phore materials based on chitosan are described for the first time in this study. A series of fluorescent and quaternized pyridinium– chitosan derivatives have been synthesized by reaction of this polymer with easily available tunable pyrylium tetra fluoroborate salts. Among other spectroscopic techniques, 19 F NMR, 13 C CPMAS...

The reaction of phenylhydrazine with a sugar dialdehyde in water, as a key step for the synthesis of the 3-amino-3-deoxy-d-glucose moiety contained in kanamycin, has been revisited. Structural studies (IR and NMR as well as a simple theoretical model based on energy-minimization calculations and MD calculations) reported herein support the...

N-Heterocyclic Thiones (NHT) proved to be efficient ligands for the stabilization of small platinum nanoparticles (1.3-1.7 nm), synthesized by decomposition of [Pt(dba)2], under a H2 atmosphere, in the presence of variable sub-stoichiometric amounts of the NHT. Full characterization by means of TEM, HR-TEM, NMR, ICP, TGA and XPS have been...