Chemistry of Heterocyclic Compounds p. 481 - 484 (1983)
Update date:2022-08-05
Topics:
Ramsh, S. M.
Zheltonog, N. G.
Shamina, L. P.
Basova, Yu. G.
Ginak, A. I.
The acylation of 2-amino-5-phenyl-4-oxazolinone and 2-amino-1-methyl-4-imidazolinone with acetyl chloride in benzene in the presence of triethylamine leads to the formation of 2-acetamido-5-phenyl-4-oxazolinone and 2-acetamido-1-methyl-4-imidazolinone.The acylation of 2-amino-4-imidazolinone under the indicated conditions, as well as acetic anhydride, gives 1-acetylimidazolidine-2,4-dione. 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione (dehydroacetic acid) is formed as a side product in the acylation of 2-amino-4-azolinones with acetyl chloride in benzene in the presence of triethylamine.The IR and PMR spectra of the compounds obtained are presented.
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