Mass spectrometry of benzo[a]- and benzo[c]acridines
暂无分享,去创建一个
The mass spectrograms of fourteen benzo[a]- and benzo[c]acridines, several of which are carcinogens, have been determined, and the following main features emerge: (a) presence of strong peaks corresponding to several stages of dehydrogenation; (b) very little fragmentation of the polycyclic frame, with, in ethylbenzacridines, a noteworthy splitting of methyl groups; and (c) importance of the double-charged ions, some of which contribute more to the ionic current than do the corresponding single-charged ones. The pattern of the spectrograms can vary considerably with the position of the substituents.
[1] A. Lacassagne,et al. The relation between carcinogenic activity and the physical and chemical properties of angular benzacridines. , 1956, Advances in cancer research.
[2] L. Gerö,et al. Dissociation Schemes of N2, P2, As2, Sb2, and Bi2 , 1949 .