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Mass-spectrometric study of the cyclization of diazo ketones. 2. Cyclization of 1-diazo-4-sulfonylaminobutan-2-ones to N-sulfonylpyrrolidin-3-ones
Authors:A. T. Lebedev  P. A. Sharbatyan  A. M. Sipyagin  V. G. Kartsev  V. S. Petrosyan
Affiliation:(1) M. V. Lomonosov Moscow State University, 117234 Moscow
Abstract:A comparison of the mass spectra of 1-diazo-4-sulfonylamino-butan-2-ones and N-sulfonylpyrrolidin-3-ones makes it possible to conclude that under the conditions of electron impact and chemical ionization the molecular ions of the investigated diazo ketones lose a molecule of nitrogen and undergo partial cyclization to the corresponding pyrrolidinones without undergoing the Wolff rearrangement.See [1] for Communication 1.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 919–925, July, 1982.
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