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http://dx.doi.org/10.18419/opus-1156
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DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Effenberger, Franz | de |
dc.contributor.author | Wonner, Johann | de |
dc.date.accessioned | 2009-08-28 | de |
dc.date.accessioned | 2016-03-31T07:47:46Z | - |
dc.date.available | 2009-08-28 | de |
dc.date.available | 2016-03-31T07:47:46Z | - |
dc.date.issued | 1992 | de |
dc.identifier.other | 316205036 | de |
dc.identifier.uri | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-44344 | de |
dc.identifier.uri | http://elib.uni-stuttgart.de/handle/11682/1173 | - |
dc.identifier.uri | http://dx.doi.org/10.18419/opus-1156 | - |
dc.description.abstract | The base-catalyzed reaction of isopropylidenesuccinate 2 with phenylthienylpropenone 1a does not give a Stobbe condensation to 3a but results in an 1,4-addition to 7 which under the basic conditions reacts further to 8 by an intramolecular condensation. The (anthrylvinyl)thiophene fulgide 4c is obtained, however, from 3-glyoxyloyl-2,5-dimethylthiophene hydrate (11) via the 2H-pyran 14: Wittig olefination of 14 with the phosphonium salt 16 leads to the diester 3c which easily is converted to Z,E-4c. - Irradiation of Z,E-4c gives a mixture of all four possible E,Z isomers of 4c and the ring-closed valence tautomers Z- and E-17. All isomers could be separated and characterized. Compound 18, formed irreversibly in a thermally-induced reaction, is enriched during irradiation. | en |
dc.language.iso | de | de |
dc.rights | info:eu-repo/semantics/openAccess | de |
dc.subject.classification | photochemische Reaktion , Thiophenfulgide | de |
dc.subject.ddc | 540 | de |
dc.title | Darstellung und Photochemie eines (Anthrylvinyl)-thiophenfulgids | de |
dc.title.alternative | Preparation and photochemistry of an anthrylvinyl thiophene fulgide | en |
dc.type | article | de |
ubs.fakultaet | Fakultät Chemie | de |
ubs.institut | Institut für Organische Chemie | de |
ubs.opusid | 4434 | de |
ubs.publikation.source | Chemische Berichte 125 (1992), S. 2583-2590. URL http://dx.doi.org./10.1002/cber.19921251133 | 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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eff228.pdf | 821,34 kB | Adobe PDF | Öffnen/Anzeigen |
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