Ring-Rearrangement Metathesis of Cyclopropenes: Synthesis of Heterocycles
作者:Frédéric Miege、Christophe Meyer、Janine Cossy
DOI:10.1021/ol9025606
日期:2010.1.15
Cyclopropenes substituted by an unsaturated side chain have been successfully involved in ring-rearrangement metatheses leading to heterocyclic compounds, thereby expanding the synthetic potential of metathesis reactions with this class of highly strained cycloalkenes.
Gold(I)-Catalysed Cycloisomerisation of 1,6-Cyclopropene-enes
作者:Frédéric Miege、Christophe Meyer、Janine Cossy
DOI:10.1002/chem.201200566
日期:2012.6.18
The gold(I)‐catalysed cycloisomerisation of appropriately substituted 1,6‐cyclopropene‐enes proceeds through regioselective electrophilic ring opening of the three‐membered ring to generate an alkenyl gold carbenoid that achieves the intramolecular cyclopropanation of the remote olefin. This strategy allows straightforward, highly efficient and diastereoselective access to a variety of substituted