Supported reagents stability

A PEG-supported Burgess reagent has been reported which provides increased yields of dihydrooxazoles as well as increased reagent stability. 35,36 ... 

Three-membered heterocyelie ring systems continue to receive attention from organic chemists. These heterocyclic ring systems provide a useful combination of reactivity, utility and stability. This review is not a comprehensive review but rather covers a selection of interesting and synthetically useful transformations. Some themes that have emerged in the past year include the use of supported reagents, aqueous reactions and solvent free reactions. The organization of this chapter follows that of previous years. 

Supported reagents have several advantages in organic chemistry such as the production of resin-bound products, increased stability, and easy purification. Despite these advantages, very few supported reagents have been used in MCRs, in front of the most common approach of using supported catalysts. In this chapter, we will discuss some of the most attractive examples for the use of supported reagents in MCRs. 

The electrochemical route for the synthesis of metal nanomaterials foresees the electrochemical oxidation-reduction of metal complexes accomplished in a simple two- [76] or three- [77] electrode t3 e cell. The electrodes are immersed in an electrolytic solution basically composed of soft-templating molecules which operate in the reaction domain both as shape-inducing reagents stabilizing and delineating the nanoparticles shape and size and furthermore as supporting electrol3 e [76, 78, 79]. A two-electrode setup is sketched in Fig. 10.3a. 

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