Infrared and nuclear magnetic resonance properties of benzoyl derivatives of five-membered monoheterocycles and determination of aromaticity indices
作者:Kyu Ok Jeon、Jung Ho Jun、Ji Sook Yu、Chang Kiu Lee
DOI:10.1002/jhet.5570400504
日期:2003.9
Benzophenones, 2-benzoylthiophenes, 2-benzoylpyrroles, and 2-benzoylfurans, which have substituents at m- and p-positions of the benzoyl ring were prepared and their ir and nmr spectra were obtained in 0.1 M chloroform-d solution. The chemical shift values of each series were plotted against the Hammett substituent parameters to give good correlation, with the exception of the ortho-Hs and -Cs. The
二苯甲酮,2- benzoylthiophenes,2- benzoylpyrroles和2- benzoylfurans,其在具有取代基的米-和p苯甲酰基环的位上制备并在0.1,得到它们的红外和核磁共振光谱中号氯仿d溶液。将每个系列的化学位移值与哈米特取代基参数作图,以得到良好的相关性,但邻位-Hs和-Cs除外。斜率以及化学位移的差异为芳香性指数提供了一组有意义的值。