Abstract

In this review with broad coverage of recent literature references we present some general aspects of green chemistry as well as a brief overview of transformations of 2H-pyran-2-ones and fused pyran-2-ones under green condition. The emphasis is given on microwave-assisted transformations under various conditions, such as aqueous condition, neat reactions, reactions in ionic liquids and, to provide a comparison, also the reactions under high pressure are presented.

Keywords: Aqueous conditions, high pressure chemistry, ionic liquids, microwave chemistry, neat reactions, 2H-Pyran-2-ones, organocatalysis.

Graphical Abstract