Tetraarylphosphonium Salts as Solubility-Control Groups: Phosphonium-Supported Triphenylphosphine and Azodicarboxylate Reagents

摘要

Tremendous effort has been invested over the last few decades to develop novel supports to facilitate organic synthesis. These supports have been used not only to carry out multistep syntheses, but also to bind catalysts, reagents, and scavengers to facilitate either the purification process of a product or the recovery of a potentially expensive or toxic catalyst or reagent.