E. Shokova, V. Tafeenko, V. Kovalev
Oct 1, 2020
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Journal
Russian Journal of Organic Chemistry
Abstract
Trifluoroacetic anhydride was used as an efficient activator of the acylation of aryl methyl ketones with carboxylic acids in the presence of Brønsted and Lewis acids (SF3SO3H, MeSO3H, 4-MeC6H4SO3H·H2O, BF3·Et2O). In all cases, the products were the corresponding β-diketones. In the reactions in the presence of boron trifluoride–diethyl ether complex, the products were isolated as BF2-chelates with high yields.