| 2 | Author
| E. N. Esr, HartmutB. Stegmann, Klaus Stolze, Klaus Scheffler | Requires cookie* | | Title
| ESR-und ENDOR-Untersuchungen der Autoxidationsprodukte des Adrenalons und analoger Verbindungen Investigations of the A utoxidation Products of Adrenalone and Related Compounds  | | | Abstract
| The signs of the proton coupling constants of adrenalone sem iquinone and related compounds were determ ined by E N D O R and T R IP L E resonance studies, thereby verifying the increment system described in our previous paper [2], Com parison of the spin-distribution of several substi tuted acylcatechols showed the conform ational influence on the coupling constants due to mesomeric interaction of the carbonyl group with the arom atic 7r-system. A drenalone and other N -m onosubstituted catecholam ines showed rather stable secondary radi cals after the decay of the prim ary sem iquinone radical. They were identified as substituted dihydropyrazinium cation radicals after selective deuteration and comparison of their ESR-, EN D O R -and TRIPLE -resonance spectra with those of the non-deuterated species. They are formed by cyclic condensation of two molecules with subsequent oxidation. E in fü h ru n g | | |
Reference
| Z. Naturforsch. 41b, 776 (1986); eingegangen am 24. Januar 1986 | | |
Published
| 1986 | | |
Keywords
| A drenalone, Semiquinones, ESR Spectra, E N D O R Spectra | | |
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| default:Reihe_B/41/ZNB-1986-41b-0776.pdf | | | Identifier
| ZNB-1986-41b-0776 | | | Volume
| 41 | |
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