| Autor: |
Neyyathala, Arjun, Flecken, Franziska, Rang, Fabian, Papke, Christina, Hanf, Schirin |
| Předmět: |
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| Zdroj: |
Chemistry - A European Journal; 1/2/2024, Vol. 30 Issue 1, p1-10, 10p |
| Abstrakt: |
Herein we report the use of a supported Pd3P catalyst for Heck coupling reactions. For the stabilisation of Pd3P and Pd, as reference system, the silica support material was modified via phosphorus doping (0.5 and 1 wt % P). Through this so‐called support engineering approach, the catalytic activity of Pd3P was clearly enhanced. Whereas an iodobenzene conversion of 79 % was witnessed for Pd3P@SiO2 in the coupling of styrene and iodobenzene in 1 h, 90 % conversion could be achieved using Pd3P@1P‐SiO2. This improved catalytic activity probably stems from an electronic modulation of the support surface via the introduction of phosphorus. Simultaneously, the recyclability was boosted and the Pd3P@1P‐SiO2 catalyst has shown to maintain its catalytic activity over several recovery tests. Hereby, metal leaching could almost be suppressed completely to 3 % by the use of a P‐modified silica support. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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