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Updated: Jul 3, 2026

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カチオンプール法に基づくイテラティブ分子組立. dendritic 分子の収束合成である

Toshiki Nokami1, Kousuke Ohata, Masafumi Inoue

  • 1Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Nishikyo-ku, Kyoto 615-8510, Japan.

Journal of the American Chemical Society
|July 30, 2008
PubMed
まとめ

新しいイテラティブ・メソッドにより,シリル活性化ビルディングブロックを使用して分子アセンブリが可能です. このアプローチは,複雑なデンドリート分子の一致合成のために,デンドリット型ダイアリルカルベニウムイオンを効率的に生成します.

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Cationic Chain-Growth Polymerization: Mechanism00:57

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The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...
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Anionic Chain-Growth Polymerization: Mechanism

The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic anion, such as butyl lithium, initiates the polymerization process by attacking the π bond of the vinylic monomer. As a result, a carbanion, stabilized by the electron‐withdrawing group, is generated. The resulting carbanion acts as a Michael donor in the propagation step and attacks the second vinylic monomer, which acts as a Michael acceptor.