Details

Autor(en) / Beteiligte

• Olga Mazhukina Yulia Monakhova Svetlana Kolesnikova Olga Fedotova Svetlana Mushtakova

Titel

Keto-Enol Tautomerism in the Series of 3-Substituted Chromen-2-Ones

Ist Teil von

• 材料科学与工程：中英文B版, 2012, Vol.2 (10), p.505-512

Erscheinungsjahr

2012

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• The aim of the present work was to study the keto-enolic tautomeria of 3-substituted chromen-2-ones. The enolic and ketonic form of the substrate was found to be the predominant one in a nonpolar （CCI4） and polar solvent, respectively. Some behavior peculiarities of 3-（1-（4-dimethylaminophenyl）-3-phenylpropyl）-3H-chromen-2 were revealed, namely, enolization by an aliphatic fragment, which is untypical for substituted chromen-2-ones. The solvent effect on tautomeric equilibrium shifting is shown by means of spectral techniques （ЯМР и УФ cneKxpocronnn）. A chemometric MILCA-based technique was used to estimate the contents of the ketonic and enolic forms.