The Walden memorial at the Technical University in Riga is pictured in the frontispiece to
mark the recent centennial of the Walden inversion. This is a rare public monument to key …

The early expectation that nonsymmetrically sub-stituted phosphorus compounds can be
resolved into the two enantiomeric forms was first verified experi-mentally in 1911 by …

Isoxazolidines, the products of 1, 3-dipolar cycloaddition reactionst-s between nitrones and
alkenes, are saturated, five membered heterocycles containing adjacent nitrogen and …

Abstract Das im Vortitel gezeigte Walden‐Denkmal auf dem Campus der Technischen
Universität Riga ist sicher eines der wenigen öffentlichen Monumente, die …

Three decades after their first synthesis, iminosugar C-glycosides have become an
important class of iminosugars with promising biological and therapeutic properties. The …

1 Introduction 1279 2 Asymmetric induction at the phosphorus atom 1280 2.1 Low-
coordinate organophosphorus compounds 1280 2.2 Tricoordinate trivalent phosphorus …

The structure and absolute configuration of natural lentiginosine isolated from plant sources
was determined to be (lS, 2S, 8aS)-1, 2-dihydroxyindolizidine ((+)-4) on the basis of the …

Several structurally differentiated N, N-dialkylhydroxylamines were oxidised to the
corresponding nitrones using MnO2. Manganese dioxide revealed an efficient and mild …

Phospholanes have attracted considerable attention as ligands for asymmetric catalysis.
The DuPHOS family of ligands reported by Burk et al. in 1991 has found considerable …

This article (the second of three parts) reviews the use of 1, 3-dipolar cycloaddition reactions
of nitrones and the closely related oximes in the construction of carbohydrate mimics …