4-Amino-1,2,4-triazoles-3-thiones and 1,3,4-oxadiazoles-2-thiones·palladium(II) recoverable complexes as catalysts in the sustainable Suzuki-Miyaura cross-coupling reaction
| Autor: | H. Ali Dondas, Ihssene Chabour, José M. Sansano, Manel Chehrouri, Inmaculada Sempere, Marcos Ferrándiz-Saperas, Cristina Moreno-Cabrerizo, Adil A. Othman, M. de Gracia Retamosa |
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| Přispěvatelé: | Universidad de Alicante. Departamento de Química Orgánica, Universidad de Alicante. Instituto Universitario de Síntesis Orgánica, Síntesis Asimétrica (SINTAS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Catalytic complex
Halide chemistry.chemical_element 010402 general chemistry 01 natural sciences Biochemistry Water/ethanol Coupling reaction Catalysis Inorganic Chemistry Suzuki-Miyaura chemistry.chemical_compound Micellar Materials Chemistry Recycling Physical and Theoretical Chemistry Solvent system 010405 organic chemistry Chemistry Aryl Organic Chemistry Combinatorial chemistry 0104 chemical sciences Solvent Química Orgánica Palladium |
| Zdroj: | RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) |
| Popis: | The Suzuki-Miyaura cross-coupling reaction using 4-amino-1,2,4-triazoles and 1,3,4-oxadiazoles-2-thiones·palladium (II) is studied. The reaction is optimized and the most appropriate catalytic complex is tested with several aryl halides, boronic acids in an environmentally benign solvent system (H2O/EtOH). The recovery of the catalytic species is also surveyed because of the nature of the employed solvent. A domino process is efficiently carried out following the standard conditions. Several surface parameters of the ligands are analyzed and the resulting values are extrapolated to the insoluble palladium catalyst. We gratefully acknowledge financial support from the Spanish Ministerio de Ciencia, Innovación y Universidades (projects CTQ2016-76782-P, CTQ2016-81797-REDC CTQ2016-81893REDT, and RED2018-102387-T) the Spanish Ministerio de Economía, Industria y Competitividad, Agencia Estatal de Investigación (AEI) and Fondo Europeo de Desarrollo Regional (FEDER, EU) (projects CTQ2016-76782-P), the Generalitat Valenciana (PROMETEOII/2014/017), USTO-MB and the Universities of Mersin and Alicante. One of us (M.C.) thanks USTO-MB for scientific leave. |
| Databáze: | OpenAIRE |
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