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Publikation: Dissertationsschrift

Synthesis of functionalized arenes based on [3+3]cyclizations of 1,3-Bis(silyloxy)-1,3-butadienes and related transformations and isolation of new chemical constituents of Symplocos racemosa


Grunddaten

Titel Synthesis of functionalized arenes based on [3+3]cyclizations of 1,3-Bis(silyloxy)-1,3-butadienes and related transformations and isolation of new chemical constituents of Symplocos racemosa
Erscheinungsjahr 2008
Publikationsform Elektronische Ressource
Publikationsart Dissertationsschrift
Sprache Englisch
Letzte Änderung 19.03.2013 10:45:05
Bearbeitungsstatus durch UB Rostock abschließend validiert
Dauerhafte URL http://purl.uni-rostock.de/fodb/pub/30388
Links zu Katalogen Diese Publikation in der Universitätsbibliographie Diese Publikation im GBV-Katalog

Abstract

The cyclization of the dianions of 3-ketosulfones and cynotacetone with 1-bromo-2-chloroethane gives 2-alkylidenetetrahydrofuran which afforded functionalized ketosulfones and ketonitrile after BBr3-mediated cleavage. Diarlysulfides, diaryl ethers and biaryls were synthesized based on [3+3] cyclizations of 1,3-bis(silyl enol ethers) in an efficient way. The preparative scope of the new method for the synthesis of of 1-azaxanthones was expanded and a variety of new compounds were prepared in an efficient way. Furthermore, a new cyclization reaction of 3-thiophenoxy-1,3-diene with 1,1-diacylcyclopropanes was developed which provides a convenient approach to diarylsulfides containing a remote halide function. A number of new natural products were isolated from Symplocos racemosa Roxb and characterized by using various sophisticated spectroscopic techniques.

Autor

Rashid, Muhammad Abid

Externe Links

Beschreibung Link
Link zur Online-Ressource http://rosdok.uni-rostock.de/resolve?urn=urn:nbn:de:gbv:28-diss2008-0018-2
Link zur Online-Ressource http://rosdok.uni-rostock.de/resolve?urn=urn:nbn:de:gbv:28-diss2008-0018-2&pdf
Link zur Online-Ressource http://nbn-resolving.de/urn:nbn:de:gbv:28-diss2008-0018-2

Einrichtung

MNF/Institut für Chemie (IfCh)