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 Pummerer rearrangement on dithiacyclophane precursors, followed by ring contraction through a photochemical sulfur extrusion, and it is compatible with aryl moieties possessing very different electronic properties
通过新颖的方法合成了在脂肪族桥中结合有官能团的[2.2]对环芳烃,该芳基适于消除以产生[2.2]对环芳二烯醚。它依赖于双硫杂环戊烷前体的双重Pummerer重排,然后通过光化学硫的挤出进行环收缩,并且与具有非常不同的电子特性的芳基部分相容。