Development of new and efficient polymer-supported hypervalent iodine reagents

Polymer-Supported Hypervalent Iodine Reagents

“…8 Oxidative biaryl coupling reaction of phenol ethers with reagent 2a or poly{4-[bis(trifluoroacetoxy)iodo]styrene} (2c) in the presence of boron trifluoride etherate has also been carried out through the formation of an aryl cation via an electron transfer pathway as shown in Scheme 2. 9 Based on this result, other diaryl coupling products were obtained in good yields through the inter-and intramolecular aryl-coupling pathway by polymer-supported reagents 2a and 2c (Table 6).…”

Festphasen-gebundenes IBX: Synthese und Oxidationseigenschaften

“…[7±11] Hierf¸r eignen sich Iodane wie (Diacetoxyiodo)-benzol, [Bis(trifluoroacetoxy)iodo]-benzol sowie das Dess-Martin-Periodinan (DMP) und 1-Hydroxy-1,2-benziodoxol-3(1 H)-on-1-oxid (IBX) 1. [16] Im Zusammenhang mit diesen Untersuchungen haben wir ein Festphasen-gebundenes IBX-Reagens entwickelt. Weiterhin sind sie umweltfreundlich und kˆnnen regeneriert werden.…”

Polymer-anchoring Schiff base ligands and their metal complexes: Investigation of their electrochemical, photoluminescence, thermal and catalytic properties

“…Transition metal complexes on polymer support have indicated various uses in organic synthesis (Roice et al, 2000;Ficht et al, 2001), curing agent for epoxy resin (Otaigbe et al, 1998), as catalyst (Maurya et al, 2008), as ion exchanger (Phillips et al, 1982) etc. This technique of immobilization on an inert support have ground much care due to their simple separation from the reaction mixture arrives to operational flexibility, selectivity, efficiency, stability and ease of handling and economy in various industrial processes.…”