Results 31 to 40 of about 147,937 (125)

Direct synthesis of b -ketophosphonates and vinylphosphonates from alkenes or alkynes catalyzed by CuNPs/ZnO [PDF]

, 2015
Copper nanoparticles (CuNPs) supported on ZnO have been shown to e ff ectively catalyze the direct synthesis of b -ketophosphonates from alkenes or alkynes, and that of vinyl phosphonates from alkynes and diethylphosphite, under air and in the absence of ...
Alonso Francisco, Gutierrez, Victoria Soledad, Mascaró, Evangelina, Moglie, Yanina Fernanda, Radivoy, Gabriel Eduardo   +4 more
core   +1 more source

Combined In‐Solution and On‐Surface Synthesis of a Fully Fused Cross‐Shaped Phthalocyanine Pentamer

Angewandte Chemie International Edition, EarlyView.
A phthalocyanine (Pc) pentamer was obtained through the combination of in‐solution and on‐surface synthesis under ultra‐high vacuum conditions. The resulting Pc‐based nanostructure presents an exact 4:1 ratio of two different metal ions with precise positional control.
Luis M. Mateo, Tzu‐Chao Hung, Andreas Rank, Raffael Spachtholz, Felix Giselbrecht, Jonas Schön, Leo Gross, Jascha Repp, Diego Peña   +8 more
wiley   +1 more source

La investigación en la Universidad [PDF]

, 2001
Juan Carlos Rodríguez Ubis: Director del Servicio Interdepartamental de Investigación. Profesor Titular del Departamento de Química Orgánica de la U.A.M. Sus líneas de investigación se centran alrededor de la Química Supramolecular en las que se inició
Rodríguez Ubis, Juan Carlos
core   +1 more source

Substrate‐Selective Temperature‐Controlled Synthesis of Thiophene Derivatives at Interfaces

Angewandte Chemie, Volume 138, Issue 6, 2 February 2026.
The deposition of a dithiophene derivative on Ag(111) at room temperature followed by annealing gives rise to molecular wires, whereas the adsorption of the same precursor on a hot substrate affords the formation of benzotrithiophene species. Abstract The temperature‐controlled transformation of organic molecules at interfaces is an incipient yet ...
Elena Pérez‐Elvira, Ana Barragán, Diego J. Vicent, Óscar Jóver, Aurelio Gallardo, Alba García‐Frutos, Lenka Černa, Koen Lauwaet, José Santos, Josefina Perles, José M. Gallego, Rodolfo Miranda, José I. Urgel, Jonas Björk, Marco Di Giovannantonio, Nazario Martín, David Écija   +16 more
wiley   +2 more sources

Guía de Evaluación: Química Orgánica [PDF]

, 2015
Guía de evaluación del ...
Avila Cordoba Liliana Ivette
core  

Effective acetalization of furfural catalyzed by Fe‐ and Co‐oxalates: impact of alcohols structure on products composition

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Fe‐, Co‐, and FeCo‐oxalates supported on silica gel (5 wt% metal load) were synthesized, characterized, and tested for the first time in solvent‐free furfural (FF) acetalization with C1–C8 alcohols at 70–170 °C under both conventional and microwave (MW)‐assisted conditions. The interaction of FF with linear C1–C4 alcohols yielded pincer‐shaped
Alexander Pokutsa, Katarzyna Rydel‐Ciszek, Alina M. Balu, Rafael Luque   +3 more
wiley   +1 more source

Self‐assembly and Lateral Cobalt Coordination of a Fivefold Symmetric Cyanostar Macrocycle on an Au(111) Surface

Chemistry – A European Journal, EarlyView.
Herein, we report the first example of the formation of a close‐packed, regular 2D monolayer of a fivefold symmetric cyanostar macrocycle on an Au(111) surface under ultra‐high vacuum and the structural modification of such self‐assembled architecture upon cobalt atom deposition.
Lenka Černá, Miguel Martínez García, Shanmugasibi K. Mathialagan, Sofía O. Parreiras, Koen Lauwaet, José Ignacio Urgel, Aurelio Gallardo, Amar H. Flood, Tomás Torres, José M. Gallego, Giovanni Bottari, David Écija   +11 more
wiley   +1 more source

Influencia del proceso de evaluación continua en la calificación final de asignaturas de grado del área de Química Orgánica [PDF]

, 2014
En la presente memoria se detallan los resultados del análisis comparativo del proceso de evaluación continua, así como su influencia en la calificación final del alumno, en diferentes asignaturas de grado adscritas al área de conocimiento de Química ...
Alonso, Diego A., Baeza, Alejandro, Blasco, Inmaculada, González López, Susana, Guillena, Gabriela, Gómez Lucas, Cecilia, Martínez Flores, Regina, Pastor, Isidro M., Ramón, Diego J., Trillo Alarcón, María Paz   +9 more
core  

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal, Martha Eugenia Albores Velasco, René O. Vargas, Rubén Mil‐Martínez   +3 more
wiley   +1 more source

Accessing Molecular Complexity from Methane and Other Gaseous Alkanes via Photocatalytic Cascade Cyclization

Angewandte Chemie, Volume 138, Issue 5, 28 January 2026.
An iron‐catalyzed protocol for the cascade cyclization of N‐aryl and N‐benzoyl acrylamides promoted by methane and other gaseous alkanes is reported. The current protocol provides an efficient platform for the conversion of feedstock gaseous alkanes into complex and medicinally relevant N‐heterocycles.
Akshay M. Nair, Jose M. Malga, Nicolás Martínez‐Acevedo, Martín Fañanás‐Mastral   +3 more
wiley   +2 more sources