IDENTIFICATION OF ORGANIC REACTION PRODUCTS IN THE ABSENCE OF ADDITIVITY OF CHROMATOGRAPHIC RETENTION INDICES. CHLORO DERIVATIVES OF METHYL-tret-BUTYL KETONE
I. G. Zenkevich, E. V. Eliseenkov, A. N. Kasatochkin
Faculty of Chemistry St. Petersburg State University, St. Petersburg
izenkevich@mail15.com
Keywords: methyl-tert-butyl ketone, chloro derivatives, chromato-mass-spectrometric identification, etention indices, estimation by additive schemes, deviations from additivity
Abstract
As a result of a joint interpretation of mass spectra and gas chromatographic retention indices more than ten products of free radical chlorination of methyl-tert-butyl ketone are identified. They contain from one to six chlorine atoms in the molecule and were not previously characterized either by mass spectrometric or chromatographic reference data. It is found that retention index increments corresponding to a gradual increase in the number of chlorine atoms in the molecule per unit are non-additive and vary in wide ranges (from 53 i.u. to 219 i.u.), which does not hinder the use of separate elements of additive schemes for the estimation of the indices of products of such non-regioselective reactions.
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