An Expedient Route To Diaryl Tetrahydropentalenedione Derivatives Via Intramolecular Pauson- Khand Carbonylative Cycloaddition- Oxidation Protocol

3,6-diaryl-2,3,3a,4-tetrahydropentalene-1,5-dione, a new class of compounds have been synthesized via Pauson-Khand carbonylative cyclization of enyne moiety followed by DMP oxidation. Straight forward nature, good yield, and wide substrate scope are the attractive features of this reaction. Additionally, this class of compounds may be further elaborated to triquinane natural product-like molecules.