Variable and stereoselective synthesis of azasugar analogues by a ruthenium-catalyzed ring rearrangement
A novel ruthenium-catalyzed ring opening/ring closing tandem metathesis reaction with a catalytic transfer of stereocenters from a ring to an olefinic chain is described. This ring rearrangement serves as the key step in the stereoselective synthesis of the new azasugar analogues 1 and 2.
Voigtmann
U
Institut fur Organische Chemie, Technische Universitat Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany.
Blechert
S