Advancements in tetronic acid chemistry. Part 2: Use as a simple precursor to privileged heterocyclic motifs.

This work highlights the literature of one of the most valuable moieties in the field of organic chemistry. In this review, the chemistry of tetronic acid as a simple precursor to privileged heterocyclic motifs is described. The synthetic procedures of different fused heterocycles incorporating a furan moiety are described. Fused heterocycles are classified as bicyclic, tricyclic, tetracyclic and spiro-fused pyran derivatives.