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Phenylene- and biphenylene-bridged bis-imidazolylidenes of palladium. Influence of the presence of pyrene tags on the catalytic activity of the complexes
(American Chemical Society, 2014)
A series of dimetallic complexes with N-heterocyclic
carbene ligands with formally identical stereoelectronic properties
have been obtained and fully characterized. The dimetallic complexes
were bridged by bis-imidazolylidenes, ...
Synthesis of new fluorescent pyrylium dyes and study of their interaction with N-protected amino acids
(Royal Society of Chemistry, 2020)
Six new 6-styryl-2,4-diarylpyrylium salts have been synthesized and fully characterized by means of 1H/13C NMR, HRMS, UV-vis and Steady-State/Time-Resolved Fluorescence spectroscopies. This set of molecules is composed of ...
Field-enhanced bulk conductivity and resistive-switching in Ca-doped BiFeO3 ceramics
(Royal Society of Chemistry, 2014)
The bulk conductivity at room temperature of Ca-doped BiFeO3 ceramics is p-type and increases
reversibly by up to 3 orders of magnitude under the influence of a small dc bias voltage in the range
B3 to 20 V mm1
. The ...
An efficient microwave-assisted enzymatic resolution of alcohols using a lipase immobilised on supported ionic liquid-like phases (SILLPs)
(Royal Society of Chemistry, 2013)
The combined action of microwave irradiation and CALB immobilised onto polymeric SILLPs leads to an excellent activity improvement (28 fold) and operational stability towards reuse (12 operation cycles). This procedure ...
Imidazolidines as hydride sources for the formation of late transition-metal monohydrides
(Royal Society of Chemistry, 2012)
The reaction of a series of imidazolidines with chloro-complexes of Ir, Rh and Ru affords the clean generation of the corresponding monohydrido metal species. Computational analysis of the reduction process suggests that ...
Minimalistic amino amides as models to study N–Hπ interactions and their implication in the side chain folding of pseudopeptidic molecules
(Royal Society of Chemistry, 2013)
The structural study of simple amino amides derived from natural amino acids showed a unique conformational pattern for the aromatic residues, being clearly different from that for the aliphatic derivatives. The results ...
New advances in dual stereocontrol for asymmetric reactions
(Royal Society of Chemistry, 2013-04-16)
Achieving dual stereocontrol in asymmetric reactions using a single enantiomer for the building of the chiral catalyst or auxiliary is a very important goal in enantioselective synthesis as it eliminates the need for having ...
Substrate selective catalytic molecular hydrogels: the role of the hydrophobic effect
(Royal Society of Chemistry, 2013-09-17)
A catalytic hydrogel is reported for the substrate selective direct aldol reaction of aliphatic ketones based on their hydrophobicity and on the emergence of catalytic activity only after self-assembly of the catalyst.
A Combined Experimental and Theoretical Study of the Polar [3 + 2] Cycloaddition of Electrophilically Activated Carbonyl Ylides with Aldehydes and Imines
(American Chemical Society, 2009)
Numerous 2,5-diaryl-1,3-dioxolane-4,4-dicarbonitriles and 2,4-diphenyl-1,3-oxazolidine-5,5-dicarbonitriles have been synthesized by [3 + 2] cycloaddition reactions between carbonyl ylides generated from epoxides and aldehydes ...
Unraveling the Molecular Recognition of Amino Acid Derivatives by a Pseudopeptidic Macrocycle: ESI-MS, NMR, Fluorescence, and Modeling Studies
(American Chemical Society, 2009)
The binding between a pseudopeptidic macrocyclic naphthalenophane and different N-protected amino acid derivatives has been thoroughly studied by ESI-MS, NMR, fluorescence, and molecular modeling. Careful NMR titration ...