Zur Seitennavigation oder mit Tastenkombination für den
accesskey
-Taste und Taste 1
Zum Seiteninhalt oder mit Tastenkombination für den
accesskey
und Taste 2
S
tartseite
A
nmelden
Hilfe
Sitemap
Impressum
Datenschutz
node2
Studentisches Leben
Veranstaltungen
Einrichtungen
Räume und Gebäude
Personen
Forschung
Startseite
Forschung
Publikationen
Projekte
Promotionen/Habilitationen
Publikationen
Navigation ausblenden
Publikationen suchen
Publikation
Autoren
Einrichtungen
Aktiv:
Abstract
Externe Dokumente
Links
Synthesis of homophthalates, 2-(Arylsulfonyl)pyridines, 6-(Thien-2-yl)salicylates, Dibenzo[b,d]pyran-6-ones, Trifluoromethyl- and Fluoro-substituted biaryls by [4+2] and [3+3] cyclizations of 1,3-Bis(silyloxy)-1,3-butadienes ( Dissertationsschrift )
Details ansehen
One-pot cyclization reactions of 1,3-bis(silyl enol ethers) with the different electrophiles provide a convenient approach for the synthesis of various complex carbacycles and heterocycles from simple starting materials. 6-Hetaryl-salicylates and 4-Aryl and 4-Hetaryl-salicylates were prepared based on [3+3] cyclizations of 1,3-bis(sily enol ethers) in an efficient way. Dibenzo[b,d]pyran-6-ones were synthesized by formal [3+3] cyclization of 1,3-bis(silyl enol ethers) with 1-(2-methoxyphenyl)-1-(trimethylsilyloxy)alk-1-en-3-ones and subsequent BBr3-mediated lactonization. Aryl fluorides were synthesized by [3+3] cyclization of 1,3-bis(silyl enol ethers) with 2-fluoro-3-silyloxy-2-en-1-ones. 1,3-Bis(silyl enol ethers) were used efficiently for the synthesis of highly functionalized homomphthalates and 4-hydoxypyridines based on [4+2] cyclization reactions.
Anzahl Zeichen: 866