Levoglucosone (LGO) is a bio-privileged molecule that can be produced on scale from
waste biomass. This chiral building block has been converted via well-established chemical …

The need to find sustainable alternatives to reduce the dependence on fossil sources has
led to significant research efforts on the conversion of biomass into platform chemicals …

The (3+ 2) cycloaddition between azomethine ylides and alkenes is an efficient, convergent
and stereocontrolled method for the synthesis of unnatural pyrrolidine and proline scaffolds …

Catalytic, enantioselective [3+ 2] cycloadditions of azomethine ylides derived from alanine
imino esters with 3-nitroindoles are reported. The dearomative cycloaddition reactions occur …

A series of original spiropyrrolizidine derivatives has been prepared by a one-pot three-
component [3+ 2] cycloaddition reaction of (E)-3-arylidene-1-phenyl-pyrrolidine-2, 5-diones …

A highly regio-and stereoselective method has been developed and expanded for the
synthesis of a 20-membered library of spirooxindole 1′-nitro pyrrolizidines via 1, 3-dipolar …

One of the greatest challenges facing our society is to reconcile our need to develop efficient
and sophisticated chemical processes with the limited resources of our planet and its …

The assignment of the relative configuration of spiroepoxides or related quaternary carbon-
containing oxiranes can be troublesome and difficult to achieve. The use of GIAO NMR shift …

In an attempt to develop novel α-amylase inhibitors, a series of 2, 4-thiazolidinedione fused
spiropyrrolidine-oxindole and 1, 2, 3-triazole scaffolds were designed, synthesized via a …

The organocatalytic properties of unnatural α‐amino acids are reviewed. Post‐translational
derivatives of natural α‐amino acids include 4‐hydroxy‐l‐proline and 4‐amino‐l‐proline …