An approach to triquinane synthesis using the Pauson–Khand reaction
摘要:
Tricyclic skeletons have been generated from acyclic enyne precursors by using an intramolecular Pauson-Khand reaction in combination with aldol, Michael and alkylation reactions. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis of α-methylene propellanone via the strategic employment of metal-mediated cyclisation chemistry
摘要:
Biologically active alpha-methylenene propellanone has been synthesised in 12 steps in an overall yield of 11%. The key step of the synthesis, an intramolecular Pauson-Khand reaction, proceeds in good yield under alkyl sulfide promotion conditions, to furnish the 5,5-fused moiety within the target Samarium diiodide-induced intramolecular conjugate addition onto the resulting cyclopentenone was used to complete the intriguing [3.3.3] propellanone skeleton. (C) 2015 Elsevier Ltd. All rights reserved.