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Metalation Reactions

المؤلف:  A. Ravve

المصدر:  Principles of Polymer Chemistry

الجزء والصفحة:  P604-606

2026-02-23

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Metalation Reactions

Functional polystyrene derivatives are starting materials for further reactions in many multistep syntheses. An example is a metalation of polystyrenes for use as intermediates [227]:

Some other reactions of lithiated polystyrene are [227]:

When polystyrenelithium is aminated by a reagent prepared from methoxyamine and methyllithium, two reaction mechanisms are possible. One may proceed via nitrene intermediates and the other one via electrophilic nitrenium ions [228]. Many other reactions of polystyrenelithium can be found in the literature [229–232]. Sodium metalated polystyrene reacts in a similar manner [228]:

Polyiodostyrene is a good starting material for many other reactions. Some of them are [233, 234]:

Poly (2,6-dimethyl-1,4-phenylene oxide) can be brominated with N-bromo-succinimide [235]. The product can also subsequently be used for further reactions [235], as, for instance, phosphorylation with triethyl phosphite: