Synthesis of Bridged Medium-Sized Rings through the Intramolecular Pauson−Khand Reaction
摘要:
[GRAPHICS]A series of aromatic enynes containing steric buttressing elements were prepared and evaluated in the NMO-mediated Pauson-Khand cyclization. O-Allyl systems led to the expected angularly fused products, whereas the O-butenyl and O-pentenyl derivatives afforded the unprecedented bridge systems.
Synthesis of Bridged Medium-Sized Rings through the Intramolecular Pauson−Khand Reaction
摘要:
[GRAPHICS]A series of aromatic enynes containing steric buttressing elements were prepared and evaluated in the NMO-mediated Pauson-Khand cyclization. O-Allyl systems led to the expected angularly fused products, whereas the O-butenyl and O-pentenyl derivatives afforded the unprecedented bridge systems.