Results 11 to 20 of about 25,612 (227)

Tuning Covalent Organic Frameworks via Nucleophilic Aromatic Substitution

Small Science
A family of covalent organic frameworks (COFs) with tuned properties has been prepared through nucleophilic aromatic substitution (SNAr) from a fluorinated imine‐linked COF (COF‐F).
Óscar González‐Rosell, David Reyes‐Mesa, Albert Gallego‐Gamo, Roc Matheu, Elies Molins, Roser Pleixats, Adelina Vallribera, Albert Granados, Carolina Gimbert‐Suriñach   +8 more
doaj   +2 more sources

A Masked Low‐Coordinate and Polarized Au(I)/Pt(0) Complex for Cooperative CX and CH Bond Activation of Pyridines

ChemistryEurope
Bulky terphenyl phosphine ligands allow the isolation of a masked low‐coordinate, highly polarized Au(I)/Pt(0) complex. At variance to the inertness of prior coordinatively saturated AuPt systems, this complex exhibits cooperative reactivity toward ...
Martina Landrini, Jefferson Guzmán, Nereida Hidalgo, Miguel Ángel Gaona, Juan José Moreno, Jesús Campos   +5 more
doaj   +2 more sources

A Crystalline Mono-Coordinate Indium(I)-Phosphaalkenyl. [PDF]

Angew Chem Int Ed Engl
The redox neutral carbometallation of a phospha‐alkyne using the dimeric indium(I) compound (InTer)2 is reported. This reaction affords a mono‐coordinate indium(I) compound that can reversibly extrude the phospha‐alkyne upon addition of a Lewis acid. Abstract The synthesis of the mono‐coordinate indium(I) compound In[C(Ad)═PTer] (Ad = 1‐adamantyl, Ter =
García-Romero Á, Pink M, Fernández I, Goicoechea JM.   +3 more
europepmc   +3 more sources

Drawing the Masters: The Formation of Giovan Battista Bassi and the Methods of the Accademia Clementina

MDCCC 1800, 2023
This article expands our understanding of the formation and early career of the landscape painter Giovan Battista Bassi (Massa Lombarda, 1784-Rome, 1852), and, in particular, of his time at the Accademia Clementina in Bologna.
Cellura, Orfeo
doaj   +1 more source

Enantioselective 1,3-Dipolar Cycloaddition Using (Z)-α-Amidonitroalkenes as a Key Step to the Access to Chiral cis-3,4-Diaminopyrrolidines

Molecules, 2022
The enantioselective 1,3-dipolar cycloaddition between imino esters and (Z)-nitroalkenes bearing a masked amino group in the β-position was studied using several chiral ligands and silver salts.
Eduardo García-Mingüens, Marcos Ferrándiz-Saperas, M. de Gracia Retamosa, Carmen Nájera, Miguel Yus, José M. Sansano   +5 more
doaj   +1 more source

Paisajes infernales y paradisíacos en la iconografía apulia: un ánfora del Pintor de Baltimore [PDF]

Boletín del Museo Arqueológico Nacional, 2020
Un vaso recientemente adquirido por el Estado para el Museo Arqueológico Nacional, un ánfora apulia de figuras rojas del Pintor de Baltimore, fechada entre 330 y 320 a.
Paloma Cabrera Bonet
doaj  

Extremes in dune preservation: controls on the completeness of fluvial deposits [PDF]

, 2015
Understanding sedimentary preservation underpins our ability to interpret the ancient sedimentary record and reconstruct palaeoenvironments and palaeoclimates.
Amsler, Mario Luis, Best, James L., Hardy, Richard J., Orfeo, Oscar, Parsons, Daniel R., Reesink, Arnold J., Szupiany, Ricardo Nicolas, Van den Berg, J. H.   +7 more
core   +1 more source

Dynamic Kinetic Resolution of Hetero biaryl Ketones by Zinc- Catalyzed Asymmetr ic Hydrosil ylation [PDF]

, 2019
Adiastereo- and highly enantioselective dynamic kinetic resolution (DKR) of configurationally labile hetero- biaryl ketones is described. The DKR proceeds by zinc- catalyze dhydrosilylation of the carbonyl group ,thus leading to ...
Carmona, José A., Fernández Fernández, Rosario Fátima, Hornillos, Valentín, Iglesias Sigüenza, Francisco Javier, Lassaletta, José M., López Serrano, Joaquín, Ros Lao, Abel   +6 more
core   +1 more source

Constantino el Grande y Daniel el Profeta: problemas de iconografía e ideología en la Constantinopla constantiniana

Lucentum, 2008
En el presente artículo proponemos reconsiderar la veracidad de un pasaje de la Vita Constantini (III, 49) de Eusebio de Cesarea, que distintos autores, desde diversos puntos de vista, han estimado falso.
Teodoro Crespo Mas
doaj   +1 more source

"Orfeo out of Care"

thersites. Journal for Transcultural Presences & Diachronic Identities from Antiquity to Date, 2022
The paper focuses on an example of multiple-step reception: the contribution of the classical story of Orpheus and Eurydice and the mediaeval lay Sir Orfeo to Tolkien’s work.
Elena Sofia Capra
doaj   +1 more source