Abstract
The mass spectra of 3,5-dimethyl-4-haloisoxazoles at ionizing electron energies of 15 to 50 eV were investigated. An increase was noted in the effect of the electron-donor properties of the halogen on the stability of the molecular ion with increasing ionizing electron energy. A probable mechanism for the cleavage of the carbon-halogen bond that explains the anomalously high intensities of the (M-I)+ ion peak is proposed.
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R. A. Khmel'nitskii, K. K. Zhigulev, S. D. Sokolov, and L. P. Tsurkanova, Zh. Organ. Khim., 4, 2162 (1970).
R. A. Khmel'nitskii, K. K. Zhigulev, and S. D. Sokolov, Izv. Mosk. Sel'sk. Akad. im. Timiryazeva, 197 (1971).
J. H. Bowie, R. K. M. R. Kallury, and R. C. Cooks, Austral. J. Chem., 22, 563 (1969).
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 737–741, June, 1971.
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Zhigulev, K.K., Khmel'nitskii, R.A. & Sokolov, S.D. Dissociative ionization of 3,5-dimethyl-4-haloisoxazoles. Chem Heterocycl Compd 7, 687–690 (1971). https://doi.org/10.1007/BF00476807
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DOI: https://doi.org/10.1007/BF00476807