Effects of stereoisomerism in the mass spectra of 2,4-disubstituted thiacyclohexanes
β Scribed by A. I. Mikaya; E. A. Trusova; L. I. Perepelitchenko; V. G. Zaikin
- Book ID
- 112348762
- Publisher
- Springer US
- Year
- 1981
- Tongue
- English
- Weight
- 559 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0009-3122
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The ionization potentials for the stereoisomers of trans-fused 1,Z-dimethyl-and l-ethyl-Z-methyl-4-Rdecahydroquinol-4-01s ( R = m C H , CH=CH2 or C2&) and the appearance potentials for the [M-CH,]+ and [M-C,H,]+ ions (loss of 2-CH, and 4-c& group potential, respectively) were measured by using the e
The syntheses and mass spectra of 5,6-tetramethylenetetrahydro-l,3-oxazine-2thione and its 4-mono-and 4,4-disubstituted analogs are reported. The primary decay processes under electron impact are loss of the 1,3-oxazine ring, formation of hydrocarbon ions, and rearrangement of the [M -C6H9] + ion.