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Free Radical Telomers and Polymers Stereochemical Control

2 Free Radical Telomers and Polymers Stereochemical Control [Pg.489]

In the past five to ten years, significant progress has been made in designing and utilizing appropriate chiral groups to control selectivity in free-radical transformations. Specifically, amide-based chiral auxiliaries have been the most widely studied and successful of the auxiliaries. Using these auxiliaries in synthetic transformations is the topic of another chapter in this volume, and the focus here is the use of these strategies in the stereocontrolled formation of telomers and polymers. The reader is referred to Chapter 4.3 (Volume 1) for a detailed discussion of chiral auxiliaries in free-radical transformations. [Pg.489]

Acrylamides equipped with chiral auxiliaries give good to excellent selectivities in [Pg.489]

The influence of penultimate groups on stereochemistry has been cited to explain slight deviations from the expected stereorandom configurations in polymerizations of monosubstituted and 1,1-disubstituted vinyl monomers [2]. For example, the [Pg.490]




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Controlled radical

Free polymer

Polymer and free

Polymer free radical

Polymer radicals

Stereochemical control

Telomer

Telomers

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