Title of article
Resonance-stabilized phenylazo-ene-phenylimine cations of cyclobutanetetraone derivatives Original Research Article
Author/Authors
Hassan S. El Khadem، نويسنده , , Bruce Coxon، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2002
Pages
10
From page
2161
To page
2170
Abstract
Cyclobutenedione phenylazo-phenylamines were found to exhibit bathochromic shifts in acidic media and hypsochromic shifts in basic media, like phenylazo-phenylhydrazones. The bathochromic shifts are due to the formation of resonance-stabilized cations and the hypsochromic shifts to enolization. The phenylazo-phenylamines and their cations and anions have been studied by NMR spectroscopy.
Keywords
NMR spectroscopy , Hypsochromic shift , Anions , Chiral shift reagents , UV–Vis spectrophotometry , Bathochromic shift , Enolization , Cations , Cyclobutenedione phenylazo-phenylamines
Journal title
Carbohydrate Research
Serial Year
2002
Journal title
Carbohydrate Research
Record number
964606
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