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Facile Synthesis and Characterization of Palladium@Carbon Catalyst for the Suzuki-Miyaura and Mizoroki-Heck Coupling Reactions
| Content Provider | MDPI |
|---|---|
| Author | Alshammari, Hamed Aldosari, Obaid Alotaibi, Mohammad Alotaibi, Raja Alhumaimess, Mosaed Morad, Moataz Adil, Syed Shaik, Mohammed Islam, Mohammad Khan, Mujeeb Alwarthan, Abdulrahman |
| Copyright Year | 2021 |
| Description | Palladium-based carbon catalysts (Pd/C) can be potentially applied as an efficient catalyst for Suzuki–Miyaura and Mizoroki–Heck coupling reactions. Herein, a variety of catalysts of palladium on activated carbon were prepared by varying the content of ‘Pd’ via an in situ reduction method, using hydrogen as a reducing agent. The as-prepared catalysts (0.5 wt % Pd/C, 1 wt % Pd/C, 2 wt % Pd/C and 3 wt % Pd/C) were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and Brunauer–Emmett–Teller (BET) analyses. The catalysts were tested as a coupling catalyst for Suzuki–Miyaura coupling reactions involving aryl halides and phenyl boronic acid. The optimization of the catalyst by varying the palladium content on the activated carbon yielded Pd/C catalysts with very high catalytic activity for Suzuki reactions of aryl halides and a Mizoroki–Heck cross-coupling reaction of 4-bromoanisol and acrylic acid in an aqueous medium. A high ‘Pd’ content and uniform ‘Pd’ impregnation significantly affected the activity of the catalysts. The catalytic activity of 3% Pd/C was found to make it a more efficient catalyst when compared with the other synthesized Pd/C catalysts. Furthermore, the catalyst reusability was also tested for Suzuki reactions by repeatedly performing the same reaction using the recovered catalyst. The 3% Pd/C catalyst displayed better reusability even after several reactions. |
| Starting Page | 4822 |
| e-ISSN | 20763417 |
| DOI | 10.3390/app11114822 |
| Journal | Applied Sciences |
| Issue Number | 11 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-05-24 |
| Access Restriction | Open |
| Subject Keyword | Applied Sciences Inorganic Chemistry Palladium Carbon Catalyst Suzuki–miyaura Coupling Mizoroki–heck |
| Content Type | Text |
| Resource Type | Article |
