Search results for "ICAD"
showing 10 items of 1297 documents
Indicadors demogràfics bàsics d’estructura. Comunitat Valenciana, Províncies, Comarques i Municipis. Padró Municipal Continuo a data 1 de gener de 20…
2018
IndEst_PMH_2017_CV és un llibre Microsoft Excel que permet determinar els principals indicadors demogràfics d’estructura, dibuixar la piràmide de població (%) i el gràfic del comportament, per grups quinquennals d’edat, dels coeficients de masculinitat i feminitat de la població a data 1 de gener de 2017 [dades del Padró Municipal Continu] de la Comunitat Valenciana i de les seues províncies, comarques i municipis.
Indicadors demogràfics bàsics d’estructura. Espanya, Comunitats Autònomes, Ciutats Autònomes i Províncies. Padró Municipal Continuo a data 1 de gener…
2018
IndEst_PMH_2017_ESP és un llibre Microsoft Excel que permet determinar els principals indicadors demogràfics d’estructura, dibuixar la piràmide de població (%) i el gràfic del comportament, per grups quinquennals d’edat, dels coeficients de masculinitat i feminitat de la població a data 1 de gener de 2017 [dades del Padró Municipal Continu] d’Espanya i les seues Comunitats Autònomes, Ciutats Autònomes i Províncies.
Indicadors demogràfics bàsics d’estructura. València, Districtes i Barris. Padró Municipal Continuo a data 1 de gener de 2018.
2018
IndEst_PMH_2018_VCIA és un llibre Microsoft Excel que permet determinar els principals indicadors demogràfics d’estructura, dibuixar la piràmide de població (%) i el gràfic del comportament, per grups quinquennals d’edat, dels coeficients de masculinitat i feminitat de la població a data 1 de gener de 2018 [dades del Padró Municipal Continu] de valència i els seus Districtes i Barris.
Measuring the sustainability of tourist destinations based on the SDGs: the case of Algarve in Portugal: Tourism Agenda 2030
2022
Purpose A synthetic indicator (SI) is developed to measure the sustainability of tourist destinations according to four proposed dimensions of sustainable development: social, economic, environmental and political. Its purpose is to determine the most appropriate indicators for each type of tourist destination, i.e. which variables should be considered in each territory according to its typology (environmental, social, economic and tourism). To test the usefulness and employability of the SI, it has been applied in the Algarve (Portugal). Three destinations were analysed in this region: Albufeira, Faro and Lagos, all three good examples of the well-known sun and beach tourism model. Design…
InN thin film lattice dynamics by grazing incidence inelastic x-ray scattering.
2011
Achieving comprehensive information on thin film lattice dynamics so far has eluded well established spectroscopic techniques. We demonstrate here the novel application of grazing incidence inelastic x-ray scattering combined with ab initio calculations to determine the complete elastic stiffness tensor, the acoustic and low-energy optic phonon dispersion relations of thin wurtzite indium nitride films. Indium nitride is an especially relevant example, due to the technological interest for optoelectronic and solar cell applications in combination with other group III nitrides.
Hydroxy-Directed Enantioselective Hydroxyalkylation in the Carbocyclic Ring of Indoles
2017
[EN] A Cinchona-derived squaramide catalyzes the reaction between hydroxyindoles and isatins leading to enantioenriched indoles substituted in the carbocyclic ring. The reaction proceeds efficiently with differently substituted isatins, yielding the desired products with excellent regioselectivity, good yields, and high enantiocontroi. Moreover, every position of the carbocyclic ring of the indole can be functionalized by using the appropriate starting hydroxyindole. The OH group was removed smoothly upon hydrogenolysis of the corresponding triflate.
Enantioselective Synthesis of 2-Amino-1,1-diarylalkanes Bearing a Carbocyclic Ring Substituted Indole through Asymmetric Catalytic Reaction of Hydrox…
2018
[EN] An asymmetric catalytic reaction of hydroxyindoles with nitroalkenes leading to the Friedel-Crafts alkylation in the carbocyclic ring of indole is presented. The method is based on the activating/directing effects of the hydroxy group situated in the carbocyclic ring of the indole providing nitroalkylated indoles functionalizated at the C-4, C-5, and C-7 positions with high yield, regio-, and enantioselectivity. The optically enriched nitroalkanes were transformed efficiently in optically enriched 2-amino-1,1-diarylalkanes bearing a carbocyclic ring substituted indole.
NMR Spectroscopic Characterization and DFT Calculations of Zirconium(IV)-3,3′-Br2–BINOLate and Related Complexes Used in an Enantioselective Friedel–…
2012
Experimental and theoretical studies on the structure of several complexes based on (R)-3,3'-Br-2-BINOL ligand and group (IV) metals used as catalysts in an enantioselective Friedel-Crafts alkylation of indoles with alpha,beta-unsaturated ketones have been carried out. NMR spectroscopic studies of these catalysts have been performed, which suggested that at room temperature the catalysts would form a monomeric structure in the case of Ti-IV and a dimeric structure in the cases of Zr-IV and Hf-IV. Density functional theory (DFT) calculations clearly corroborate the conclusions of these experimental spectroscopic studies. The dimeric structure with a doubly bridged motif [Zr-2(IV)(mu-(R)-3,3'…
Synthesis of Functionalized Indoles with a Trifluoromethy-Substituted Stereogenic Tertiary Carbon Atom Through an Enantioselective Friedel-Crafts Alk…
2010
[EN] Chiral complexes of BINOL-based ligands with zirconium tert-butoxide catalyze the Friedel-Crafts alkylation reaction of indoles with beta-trifluoromethyl-alpha,beta-unsaturated ketones to give functionalized indoles with an asymmetric tertiary carbon center attached to a trifluoromethyl group. The reaction can be applied to a large number of substituted alpha-trifluoromethyl enones and substituted indoles. The expected products were obtained with good yields and ees of up to 99%.
Organocatalytic Enantioselective Friedel–Crafts Aminoalkylation of Indoles in the Carbocyclic Ring
2016
The first general catalytic method for the, so far elusive, enantioselective Friedel−Crafts functionalization of indoles in the carbocyclic ring is presented. This transformation contrasts with the usual tendency of these heterocycles to react at the azole ring. For this purpose, the four regioisomeric hydroxy carbocyclic-substituted indoles were reacted with several isatinderived ketimines, using a Cinchona alkaloid-based squaramide, in a low 0.5−5 mol % catalyst loading, as a bifunctional catalyst. This methodology allows the functionalization of indoles in every position of the carbocyclic ring in a regio- and enantioselective fashion, by switching only the position of the hydroxy group …