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http://dx.doi.org/10.18419/opus-1111
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DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Effenberger, Franz | de |
dc.contributor.author | Mack, Karl-Ernst | de |
dc.contributor.author | Niess, Rolf | de |
dc.contributor.author | Reisinger, Friedrich | de |
dc.contributor.author | Steinbach, Adalbert | de |
dc.contributor.author | Stohrer, Wolf-Dieter | de |
dc.contributor.author | Stezowski, John J. | de |
dc.contributor.author | Rommel, Ilse | de |
dc.contributor.author | Maier, Andreas | de |
dc.date.accessioned | 2009-07-30 | de |
dc.date.accessioned | 2016-03-31T07:47:40Z | - |
dc.date.available | 2009-07-30 | de |
dc.date.available | 2016-03-31T07:47:40Z | - |
dc.date.issued | 1988 | de |
dc.identifier.other | 316154377 | de |
dc.identifier.uri | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-43544 | de |
dc.identifier.uri | http://elib.uni-stuttgart.de/handle/11682/1128 | - |
dc.identifier.uri | http://dx.doi.org/10.18419/opus-1111 | - |
dc.description.abstract | Dimeric σ-complexes 2, postulated intermediates in the oxidative dimerization of aromatics, were obtained by oxidation of tripprolidin-1-ylbenzenes 1a-f with silver nitrate. Treatment of 2 with strong base gave biphenyls 4. In solution, especially under the influence of light, compounds 2 dissociate to radical cations 1o+,which react irreversibly with solvent under H abstraction to give σ-complexes 3. Crystal structures were determined by X-ray diffraction methods for compounds 2a and 2c. Reactions of triaminobenzenes 8 and 9 with bromine and halocyanogens gave mixtures of substitution (10/ 11) and dimerization products (12/ 13). This product formation can be plausibly explained in terms of known steric and electronic factors of both reaction partners. | en |
dc.language.iso | en | de |
dc.rights | info:eu-repo/semantics/openAccess | de |
dc.subject.classification | Aromaten , Anilin | de |
dc.subject.ddc | 540 | de |
dc.title | Dimeric σ-complexes : intermediates in the oxidative dimerization of aromatics (Aminobenzenes ; 19) | en |
dc.type | article | de |
dc.date.updated | 2013-05-08 | de |
ubs.fakultaet | Fakultät Chemie | de |
ubs.institut | Institut für Organische Chemie | de |
ubs.opusid | 4354 | de |
ubs.publikation.source | Journal of Organic Chemistry 53 (1988), S. 4379-4386. URL http://dx.doi.org./10.1021/jo00253a035 | de |
ubs.publikation.typ | Zeitschriftenartikel | de |
Enthalten in den Sammlungen: | 03 Fakultät Chemie |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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eff187.pdf | 950,16 kB | Adobe PDF | Öffnen/Anzeigen |
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