Abstract
The acylation of N-substituted 3-methyl-1H-1,2-diazaphenalenes of the naphthalene and acenaphthene series with trifluoroacetic anhydride gave mono- and diacylated products. Despite the presence of a bulky substituent on the pyrrole type nitrogen atom, the trifluoroacetyl group entered the peri position with respect to that substituent. The product structure was confirmed by X-ray analysis.
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Omelichkin, N.I., Minyaeva, L.G., Korobov, M.S. et al. Trifluoroacetylation of N-Substituted 1H-1,2-Diazaphenalenes of the Naphthalene and Acenaphthene Series. Russ J Org Chem 55, 87–92 (2019). https://doi.org/10.1134/S107042801901010X
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DOI: https://doi.org/10.1134/S107042801901010X