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Chemistry

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  • Published Date
Displaying 1876 - 1900 of 1924

Nitration of alkyl substituted 4-aryl(benzoyl)pyridynes

May 1, 1982
Author(s)
Anzor I. Mikaia, Nikolay A. Prostakov, Anatolyi Soldatenkov, AP Krapivko, AA Fomichev, AA Ustenko
Peri-effect leading to a base peak of [M-NO2] ion in the spectra of dinitro diarenes is described along with the synthesis of arylpyridines

Effects of stereoisomerism in the mass spectra of 2,4-disubstituted thiacyclohexanes

July 9, 1980
Author(s)
Anzor I. Mikaia, Elena Trusova, Lyudmila Perepelitchenko, Vladimir G. Zaikin
The stereospecificity of fragmentation for isomeric dialkyl- and methyl,phenylthiacyclohexanes under electron ionization are established. Experimentally obtained relative Ionization and appearance energies for the stereoisomers are in agreement with

Ionization and appearance potentials in organic chemistry. 3. Determination of the difference between the enthalpies of formation of cis- and trans-isomers of bicyclo[4.3.0]- nonane and bicyclo[4.4.0]decane Using Appearance Potentials

June 1, 1980
Author(s)
Anzor I. Mikaia, Vladimir G. Zaikin
The first adiabatic potentials of the ionization of cis and trans iosmers with respect to the linkage of the rings of bicyclo[4.3.0]nonane and bicyclo[4.4.0]decane are practically identical. for the stereoisomers of these two series have been measured. The

Mass spectrometric investigation of Alkyl-Substituted arylpyridynes

May 1, 1980
Author(s)
Anzor I. Mikaia, Anatolyi Soldatenkov, Vadim Fedorov, Vladimir G. Zaikin, Nikolay A. Prostakov
Electron ionization decomposition of aryl(polyalkyl)pyridines containing is studied. General fragmentation pathways and specific patterns for 2-. 3- and 4-arylsubstituted are identified

Mass spectrometric study of aromatic derivatives of cycloalkanes and cycloalkanols

October 1, 1979
Author(s)
Anzor I. Mikaia, Vladimir G. Zaikin, Evgenyi Finkelstein, Valentin Vdovin
General and specific fragmentation pathways of arylcyclanes with three, four, five and six membered saturated rings under electron ionization are determined. The resulting characteristic ions are useful for structure elucidation. The measured appearance
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