Mass Spectroscopical Properties of Benzoyl Derivatives of Five-membered Monoheterocycles and Determination of Aromaticity Indices

Bulletin of the Korean chemical society

Chang Kiu Lee¹  Kyu Ok Jeon¹  Jung Ho Jun¹  Ji Sook Yu¹ 

关键词: Heterocycles;    Aromaticity indices;    Hammett equation;    Mass spectral fragments;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The mass spectra of benzophenones, 2-benzoylthiophenes, 2-benzoylpyrroles, and 2-benzoylfurans which have substituents at the m- and p-positions of the benzoyl ring were analyzed to find correlations against the Hammett substituent parameter �? and �?+. The slopes of the plots of the intensities of the fragments from the heterocycles against those of the benzene gave sets of meaningful values for the indices of aromaticity of the heterocycles: benzene 1.00; thiophene 0.94, pyrrole 0.82, and furan 0.74.

【 授权许可】

Unknown