- Tytuł:
- Acylation of aromatic compounds by acid anhydrides using Preysslers anion [NaP5W30O110]14- and heteropolyacids as green catalysts
- Autorzy:
-
Gharib, A.
Jahangir, M.
Scheeren, J.(H.)W. - Powiązania:
- https://bibliotekanauki.pl/articles/779170.pdf
- Data publikacji:
- 2011
- Wydawca:
- Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
- Tematy:
-
acylowanie
bezwodniki
heteropolikwasy
katalizator
związki aromatyczne
acylation
Preyssler
anhydride
heteropoly acids
catalyst
aromatic compounds - Opis:
- The Preyssler, Wells-Dowson and Keggin heteropolyacids are efficient and eco-friendly solid acid catalysts for the acylation of electron-rich aromatic compounds with acid anhydrides. The performance of different forms of heteropolyacids was compared. In all the cases, the best results were obtained using the Preyssler heteropolyacid as the catalyst. In the presence of 25 mol% (with respect to H+ equivalency) Preyssler catalyst, highly para-selective acetylation of anisole occurs using two equivalents of acetic anhydride, in 15 min at room temperature. The isolated yield of the p-methoxyacetophenone product is 98%.
- Źródło:
-
Polish Journal of Chemical Technology; 2011, 13, 2; 11-17
1509-8117
1899-4741 - Pojawia się w:
- Polish Journal of Chemical Technology
- Dostawca treści:
- Biblioteka Nauki