Mild preparation of functionalized [2.2]paracyclophanes via the Pummerer rearrangement
作者:Matteo Montanari、Alberto Bugana、Arvind K. Sharma、Dario Pasini
DOI:10.1039/c1ob05319a
日期:——
2]Paracyclophanes, incorporating functional groups in the aliphatic bridges, suitable for elimination to give [2.2]paracyclophanedienes, are synthesized through a novel approach. It relies on a double Pummererrearrangement on dithiacyclophane precursors, followed by ring contraction through a photochemical sulfur extrusion, and it is compatible with aryl moieties possessing very different electronic properties