摘要
报道了 ７个６－羟基－２－吡啶酮衍生物在溶液中的 １Ｈ－．１３Ｃ－ＮＭＲ波谱和固态的红外光谱数据．实验表明，在常温和酸性介质中井不能使它们以 ６－酮基－２－吡啶酮的结构存在．解释了红外光谱中１８８６—１６３０ ｃｍ－１范围内某些化合物的两条羰基谱带．根据波谱数据，提出了这类化合物在酸性、中性和碱性条件下可能存在的结构形式．
The 1H, 13C-NMR spectra in the solutions and IR spectra in solid state of seven 6-hydroxy-2-pyridone derivatives are reported. It is demonstrated by experiments that the compounds studied can not exist in the form of 6-keto-2-pyridone at normal temperature and under acidic conditions. The two carbonyl bands in the range of 1 686- 1 630 cm-1 in IR spectra for some samples are explained. The possible structures for these compounds under acidic, neutral and basic conditions are proposed according to the spectral data.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1991年第3期279-286,共8页
Journal of Dalian University of Technology
基金
国家自然科学基金资助项目。
关键词
羟基吡啶酮系
结构特征
偶氮染料
spectrographic analysis
NMR spectrometry
infrared spectrophotometry
structural characteristics/6-hydroxy- 2-pyridone derivatives
