| Abstract
| - The boron-catalyzed polymerization of dimethylsulfoxonium methylide (1) has been usedto prepare telechelic polymethylene polymers. The functional polymers were synthesized by hydroborationof substituted α-olefins. Functional groups including biotin, carbohydrates, primary and secondary amines,and dansyl and pyrene fluorescent groups were tolerant to the reaction conditions. The livingpolymerization of ylide 1 was initiated and catalyzed by the organoborane. Oxidation of the resultingtris(polymethylene) organoborane produced ω-hydroxy-terminated polymethylenes. The reactions wereused to produce α,ω-polymethylenes with molecular weights in the range of 1000−17 000 withpolydispersities < 1.1.
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