Search results for "Alder"

showing 10 items of 273 documents

Architecture and kinematics of forearc basins and intra-caldera resurgences: new insight from the Paola Basin (western offshore Calabria region) and …

This thesis deals with the patterns of tectonic deformation at different time and spatial scales ranging from tens to millions of years and from one to tens of kilometers, respectively. The study areas are the Campi Flegrei (Campania region, Italy) and Paola Basin (western offshore Calabria region, Italy). The Campi Flegrei and its offshore prolongation, the Pozzuoli Bay, are a laboratory for investigating volcano-tectonic deformations at 1yr-1kyr timescale and 1km spatial scale related to the dynamics of the Neapolitan Yellow Tuff (NYT) caldera and its intra-caldera resurgence. Resurgence is the late stage, long-term uplift of a collapse caldera floor to form a dome-like structure. The com…

Settore GEO/03 - Geologia StrutturaleCaldera Resurgence Reverse faults Campi Flegrei Pozzuoli BayCalabrian Arc Ionian Sea Fore-arc basin Lithospheric buckling Longshore current
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LANDSLIDE SUSCEPTIBILITY MODELS FOR STORM-TRIGGERED MULTIPLE OCCURRING DEBRIS FLOWS IN EL SALVADOR

Settore GEO/04 - Geografia Fisica E Geomorfologialandslides susceptibility assessment El Salvador Ida Hurricane Ilopango Caldera
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«Amor y Psique. Hermenéutica de una fábula de las Artes figurativas al teatro de Calderón»

2013

Este trabajo se centra en el estudio de la obra calderoniana Ni amor se libra de amor, y de cómo se diseña la fábula argumental de Amor y Psique a través del análisis textual por medio de tres recorridos fundamentales: la referencia a las taxonomías de la tradición icónica; el meta-teatro; y la cuestión iconológica con respecto al estatuto de la imagen. The present article focuses on studying the argumentative structure of the fable of Amor and Psyche in Calderón’s play Ni amor se libra de amor. The analysis is based on three aspects: the reference to taxonomies within the iconic tradition; meta-theatre; the iconological dimension with respect to the status of the image.

Settore L-LIN/05 - Letteratura Spagnola:Filología y Literatura [Materias Investigacion]Amor and PsicheCalderón de la BarcaMeta-teatroMeta-theatreNi amor se libra de amorTeatro CalderonTaxonomíasAmor y PsiqueTaxonomies
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Espacio y tiempo en el teatro de Calderón

2005

Settore L-LIN/05 - Letteratura SpagnolaEspacio tiempo teatro Calderon
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Procedimenti gongorini della visione nel teatro di Calderón

2006

Settore L-LIN/05 - Letteratura SpagnolaGongora Calderon teatro
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LA FIGURA DEL GRACIOSO NEL TEATRO DI PEDRO CALDERÓN DE LA BARCA

2012

Settore L-LIN/05 - Letteratura SpagnolaTEATROPEDRO CALDERÓN DE LA BARCAGRACIOSO
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Funciones dramáticas y simbólicas de la ciudad en el teatro de Calderón

2006

Settore L-LIN/05 - Letteratura Spagnolaciudad Calderon funciones dramaticas
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Unveiling the Ionic Diels-Alder Reactions within the Molecular Electron Density Theory

2021

The ionic Diels–Alder (I-DA) reactions of a series of six iminium cations with cyclopentadiene have been studied within the Molecular Electron Density Theory (MEDT). The superelectrophilic character of iminium cations, ω &gt

Steric effectsCyclopentadienePharmaceutical ScienceIonic bonding010402 general chemistry01 natural sciencesArticleAnalytical Chemistrychemistry.chemical_compoundQD241-441Computational chemistryDrug Discoveryionic Diels–Alder reactionsReactivity (chemistry)Physical and Theoretical Chemistryorganic_chemistry010405 organic chemistryChemistryOrganic ChemistrySolvationCationic polymerizationMolecular Electron Density TheoryIminiumiminium cationsElectron localization function3. Good health0104 chemical sciencesChemistry (miscellaneous)asynchronicityglobal electron density transfersuperelectrophilesMolecular Medicine
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A study of the diels-alder reaction of 3-oxabicyclo[3.3.0]oct-1(5)-ene-2,4-dione with cyclopentadiene and some related dienes

1984

Abstract The reaction of 3-oxabicyclo[3.3.0]oct-l(5)ene-2,4-dione, 2, with cyclopentadiene, 3, 5,5-diethoxycyclopentadiene, 4, and 6,6-dimethylfulvene, 5, is studied. Reaction of 2 and 3 yields the expected endo-adduct, while reaction of 2 and 5 gives a mixture of the endo- and exo-adducts whose ratio is slightly dependent on the reaction conditions. Attractive electrostatic interactions in the transition state leading to the exo-adduct can explain the absence of endo stereoselectivity in the last reaction. Steric factors seem to be responsible for the absence of reaction between 2 and 4. The analysis of the 13C NMR spectra of these adducts and some derived compounds confirms the tentative …

Steric effectsOrder of reactionCyclopentadieneBicyclic moleculeStereochemistryOrganic ChemistryBiochemistryMedicinal chemistryElimination reactionchemistry.chemical_compoundchemistryDrug DiscoveryStereoselectivityEne reactionDiels–Alder reactionTetrahedron
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Asymmetric synthesis of bicyclic amino acid derivatives by Aza-Diels-Alder reactions in aqueous solution

1991

Derivatives 7–10 and 13–16 of methyl and ethyl 2-azabicyclo[2.2.1]heptane-3-carboxylates are synthesized by Aza-Diels-Alder reactions of chiral iminium ions, formed in situ from glyoxylic acid and chiral amines, with cyclopentadiene. Whereas the heterodienophiles derived from phenylglycinol and esters of sterically more demanding amino acids fail to undergo asymmetric cycloadditions, with alanine methyl ester and (R)-1-phenylethylamine hydrochoride the cycloadducts are formed in yields of 15 and 52%, respectively, reaching de values of up to 90:10 for the exo isomers.

Steric effectschemistry.chemical_classificationCyclopentadieneBicyclic moleculeOrganic ChemistryEnantioselective synthesisIminiumAmino acidchemistry.chemical_compoundchemistryOrganic chemistryAza-Diels–Alder reactionPhysical and Theoretical ChemistryGlyoxylic acidLiebigs Annalen der Chemie
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