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Heterogeneous Catalytic Acylation of Benzo Crown Ether Using Acetic Anhydride |
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| Authors: | Katalin Biró Sándor Békássy Béla Ágai François Figueras |
| Affiliation: | 1. Technical University of Budapest, Department of Organic Chemical Technology , H-1521, Budapest, Hungary;2. Institut de Recherches sur la Catalyse du CNRS, 2 Avenue A. Einstein , F-69626, Villeurbanne, Cedex, France;3. Technical University of Budapest, Department of Organic Chemical Technology , H-1521, Budapest, Hungary;4. Institut de Recherches sur la Catalyse du CNRS, 2 Avenue A. Einstein , F-69626, Villeurbanne, Cedex, France |
| Abstract: | Benzo-15-crown-5 macrocycle has been acetylated using acetic anhydride and a series of cation exchanged clays. This acetylating method has great advantages such as the significant reduction of the formation of by-products, lower price and the possibility of environmental friendly process. Yields as high as 80% for the acetylated compound are reached in short times. |
| Keywords: | Dihydrophosphinine oxides Reduction Ring contraction hexahydrophosphinine oxides Theoretical calculations |