Development of Methods: Section 3.1.1–3.1.2.2.4

Imprinting Chiral Information into Rigidified Dendrimers

“…The heterogenization of “homogeneous” catalysts onto solid supports (silica, alumina, polymers, , etc.) has long been seen as a methodology for combining the most beneficial aspects of each catalyst type into a single formulation.…”

Additions of PH3 to Monosubstituted Alkenes of the Formula H2CCH(CH2)x(CF2)yCF3: Convenient, Multigram Syntheses of a Family of Partially Fluorinated Trialkylphosphines with Modulated Electronic Properties and Fluorous Phase Affinities

“…As shown in Figure , they may react under homogeneous conditions in the high temperature mon-ophasic limit and easily be recovered in the low-temperature biphasic limit. This design element combines the best features of homogeneous and heterogeneous cat-alysts 4a 1 One possibility for catalysis with fluorous solvents. …”

“…At lower values, the Lewis acidity will be enhanced. Phosphines would constitute an obvious testing ground for this concept, since there are a large number of important processes that utilize metal phosphine complexes as catalysts,4b as well as many reactions catalyzed by phosphines alone …”

Synthesis of Catalytically Active Polymers by Means of ROMP: An Effective Approach toward Polymeric Homogeneously Soluble Catalysts

“…Polymeric reagents and catalysts have widely been used in organic synthesis . In large-scale industrial processes the application of polymer-supported catalysts is also desirable because it can lead to durable catalytic activity or allow easy catalyst separation. , A common strategy for the preparation of such catalysts involves the attachment of a previously identified catalytically active subunit to a preformed polymeric support. For the development of chiral catalysts to be used in the synthesis of optically active products, this protocol is particularly difficult because the systematic optimization of reactivity and enantioselectivity is hindered due to the fact that the catalytically active subunits are more or less randomly distributed along an irregular polymer chain.…”