g-C3N4/γ-Fe2O3/TiO2/Pd: a new magnetically separable photocatalyst for visible-light-driven fluoride-free Hiyama and Suzuki–Miyaura cross-coupling reactions at room temperature
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Título: | g-C3N4/γ-Fe2O3/TiO2/Pd: a new magnetically separable photocatalyst for visible-light-driven fluoride-free Hiyama and Suzuki–Miyaura cross-coupling reactions at room temperature |
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Autor/es: | Jahanshahi, Roya | Khazaee, Asma | Sobhani, Sara | Sansano, Jose M. |
Grupo/s de investigación o GITE: | Síntesis Asimétrica (SINTAS) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Orgánica | Universidad de Alicante. Instituto Universitario de Síntesis Orgánica |
Palabras clave: | g-C3N4/γ-Fe2O3/TiO2/Pd | Magnetically separable photocatalyst | Visible-light-driven | Fluoride-free | Hiyama and Suzuki–Miyaura | Cross-coupling reactions |
Área/s de conocimiento: | Química Orgánica |
Fecha de publicación: | 10-jun-2020 |
Editor: | Royal Society of Chemistry |
Cita bibliográfica: | New Journal of Chemistry. 2020, 44: 11513-11526. doi:10.1039/D0NJ01599G |
Resumen: | In this paper, a new visible-light harvesting photocatalyst denoted as g-C3N4/γ-Fe2O3/TiO2/Pd was successfully fabricated and fully characterized by different techniques including FT-IR, XPS, XRD, TEM, SEM, elemental mapping, VSM, DRS, and ICP analysis. The as-prepared catalyst was utilized as an efficient magnetically separable photocatalyst in the fluoride-free Hiyama and Suzuki–Miyaura cross-coupling reactions at room temperature under visible light irradiation. By using this approach good to excellent yields of biaryls were achieved from the reaction of various aryl iodides/bromides and even chlorides as highly challenging substrates, which are more available and cheaper than aryl iodides and bromides, with triethoxyphenylsilane or phenylboronic acid. The superior photocatalytic activity of g-C3N4/γ-Fe2O3/TiO2/Pd could be attributed to the synergistic catalytic effects of Pd nanoparticles and g-C3N4/γ-Fe2O3/TiO2. Utilizing a sustainable and safe light source, no need to use any additive or heat, using an eco-friendly solvent and long-term stability and magnetic recyclability of the catalyst for at least seven successive runs are the advantages that support the current protocol towards green chemistry. |
Patrocinador/es: | Financial support of this project by the University of Birjand Research Council and the XPS facilities of the University of Alicante is appreciated. |
URI: | http://hdl.handle.net/10045/108062 |
ISSN: | 1144-0546 (Print) | 1369-9261 (Online) |
DOI: | 10.1039/D0NJ01599G |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2020 |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1039/D0NJ01599G |
Aparece en las colecciones: | INV - SINTAS - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Jahanshahi_etal_2020_NewJChem_final.pdf | Versión final (acceso restringido) | 8,27 MB | Adobe PDF | Abrir Solicitar una copia |
Jahanshahi_etal_2020_NewJChem_accepted.pdf | Accepted Manuscript (acceso abierto) | 2,54 MB | Adobe PDF | Abrir Vista previa |
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