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Preparation and NMR spectra of substituted 2-phenyl-5,5-dialkylimidazolinones

✍ Scribed by Miloš Sedlák; Aleš Halama; Petr Mitaš; Jaromír Kaválek; Vladimír Macháček

Publisher
Journal of Heterocyclic Chemistry
Year
1997
Tongue
English
Weight
334 KB
Volume
34
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

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 ^1^H and ^13^C 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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