Results 61 to 70 of about 150,397 (174)
[m.n] Multinuclear ferrocenophanes prepared by aza-Wittig reaction of bisiminophosphoranes derived from 1,1'-diazidoferrocene and isophthaladelhyde or 2,5-diformylthiophene, behave as efficient electrochemical and chromogenic chemosensor molecules for ...
Antonia Sola +3 more
doaj +1 more source
Combined In‐Solution and On‐Surface Synthesis of a Fully Fused Cross‐Shaped Phthalocyanine Pentamer
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 +8 more
wiley +1 more source
Métodos alternativos ao uso de insecticidas [PDF]
Titulación: Licenciatura en Química -- Materia: Química orgánica agrícolaEsta unidade didáctica inclúese na materia de Química Orgánica Agrícola que se imparte no quinto curso da licenciatura en Química e supón unha carga lectiva de 60 horas.
Seco Castro, José Manuel
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The trypanocidal activity of the alkaloid oliverine involves inhibition of DNA synthesis [PDF]
The Trypanosoma cruzi parasite is an etiologic agent of the American trypanosomiasis called Chagas disease. This pathology affects more than 24 million persons and represents one of the most important public health problems in Latin America.
Garro, Hugo Alejandro +5 more
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Substrate‐Selective Temperature‐Controlled Synthesis of Thiophene Derivatives at Interfaces
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 +16 more
wiley +2 more sources
Here we describe modified syntheses of o-acetylbenzoic acids and o-acetylphenylacetic acids by Heck palladium-catalysed arylation of n-butyl vinyl ether with o-iodobenzoic acids or with o-iodophenylacetic acids, respectively.
Jose C. Barcia +6 more
doaj +1 more source
Guía de Evaluación: Química Orgánica [PDF]
Guía de evaluación del ...
Avila Cordoba Liliana Ivette
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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 +3 more
wiley +1 more source
Allylsilanes in the synthesis of three to seven membered rings: the silylcuprate strategy
Addition of low order phenyldimethylsilylcyanocuprates to allenes followed by "in situ" reaction of the intermediate silylcuprate with electrophiles ("the silylcuprate strategy") provides new routes for the synthesis of functionalised allylsilanes, which
Asunción Barbero +2 more
doaj +1 more source
Dada la problemática que presentan los esmaltes antideslizantes convencionales, los cuales poseen una rugosidad superficial que dificulta la limpieza de la superficie de la pieza, se ha diseñado un esmalte antideslizante de naturaleza vitrocerámica que ...
E. Barrachina Albert +4 more
doaj +1 more source

