Stefan Welzig
Vienna University of Technology
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Publication
Featured researches published by Stefan Welzig.
Tetrahedron | 2002
Alexander Poschalko; Stefan Welzig; Matthias Treu; Sven Nerdinger; Kurt Mereiter; Ulrich Jordis
Abstract The first total synthesis of an unnatural analog of the anti-Alzheimer drug (−)-galanthamine has been accomplished using K3[Fe(CN)]6 in the key step to build up the heterocyclic ring system via an oxidative tandem cyclization.
Heterocycles | 2001
Matthias Treu; Stefan Welzig; Ulrich Jordis
The conversion of galanthamine-type molecules into crinine-type compounds and vice versa has been accomplished by a ring opening-Michael addition-cascade of a galanthamine-type secondary amine and a crinine-type quarternary ammonium salt.
Archive | 2001
Ulrich Jordis; Johannes Fröhlich; Matthias Treu; Manfred Hirnschall; Laszlo Czollner; Beate Kälz; Stefan Welzig
Archive | 2004
Laszlo Czollner; Beate Kälz; Stefan Welzig; Werner Frantsits; Ulrich Jordis; Johannes Fröhlich
Archive | 2003
Laszlo Czollner; Beate Kälz; Jan Rothenburger; Stefan Welzig
Archive | 2001
Ulrich Jordis; Johannes Fröhlich; Matthias Treu; Manfred Hirnschall; Laszlo Czollner; Beate Kälz; Stefan Welzig
Archive | 2008
Federico Gaeta; Klaus Gerdes; Stefan Welzig; Beate Kälz; Jan Rothenburger; József Gungl
Archive | 2008
Stefan Welzig; Jan Rothenburger; Beate Kälz; József Gungl; Klaus Gerdes; Federico Gaeta
Archive | 2010
Stefan Welzig; Jan Rothenburger; Beate Kälz; József Gungl; Klaus Gerdes
Archive | 2009
Klaus Gerdes; József Gungl; Beate Kälz; Jan Rothenburger; Stefan Welzig
