On the Structure of “5-Nitrosotropolone”

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• 作者：Ai Ito ; Hideaki Muratake ; Koichi Shudo
• 刊名：Journal of Organic Chemistry
• 出版年：2009
• 出版时间：February 6, 2009
• 年：2009
• 卷：74
• 期：3
• 页码：1275-1281
• 全文大小：286K
• 年卷期：v.74,no.3(February 6, 2009)
• ISSN：1520-6904

文摘

It has long been discussed whether “5-nitrosotropolone” 1 takes the nitroso structure 1A or the tautomeric oxime structure 1B. Analysis of NMR and UV spectra data in this study indicates that the tropoquinone-5-monoxime 1B is preferred. The UV absorption shift to longer wavelength at dilute solutions is attributable to the dissociated form 3.