Abstract
A series of polystyrenes bearing multiple different functional groups has been syn- thesized, and these materials have been used as catalysts and reagents in a variety of organic reactions. Polymers functionalized with various combinations of amine, phenol, phosphine, and thiourea groups have been prepared in both non-cross-linked (soluble) and cross-linked (insoluble) formats. Reactions catalyzed by these polymers include Morita-Baylis-Hillman (MBH), alkyne to 1,3-diene isomerization, and decarboxylative Doebner-Knoevenagel reac- tions. Furthermore, Wittig and tandem Wittig/reduction reactions have been performed using hetero geneous polymeric reagents possessing a combination of amine and phosphine groups.
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