Development and Application of a Recyclable High Load Magnetic Co/C Hybrid ROMP-derived Benzene Sulfonyl Chloride Reagent and Utility of Corresponding Analogs

摘要

The development and application of high load, recyclable magnetic Co/C hybrid ROMP-derived benzenesulfonyl chloride and analogues is reported. The regeneration and utility of these reagents in the methylation/alkylation of various carboxylic acids is demonstrated via efficient retrieval of the magnetic reagent with a neodymium magnet. Additional reactions employing the analog sulfonic acid and in situ generated magnetic benzenesulfonyl azide are also reported.