The molybdenum-mediated tandem Pauson-Khand reaction. High yield entry into [5.5.5.5]tetracyclic systems

摘要

The [5.5.5.5]tetracyclic ring systems 1 and 2 were synthesized in high yield via a molybdenum carbonyl-mediated Pauson-Khand (type) reaction which is much easier to execute than the previous cobalt carbonyl mediated process.