Journal of Heterocyclic Chemistry p. 1227 - 1232 (1997)
Update date:2022-07-30
Topics:
Sedlak, Milos
Halama, Ales
Mitas, Petr
Kavalek, Jaromir
Machacek, Vladimir
Eighteen substituted 2-phenyl-5,5-dialkylimidazolinones 2 have been prepared by cyclizations of substituted 2-(N-benzoylamino)alkanamides 1. The cyclization of methylamides 1 proceeds at room temperature whereas primary amides are cyclized on boiling. The 1H and 13C nmr spectra of the imidazolinones are presented and the changes in their spectra connected with their protonation in hexadeuteriodimethyl sulfoxide-trifluoroacetic acid mixtures are discussed.
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