抄録
(equation presented) The template-directed syntheses of two [2]rotaxanes, one carrying one and the other two triphenylphosphonium stoppers, have been achieved using a threading-followed-by-stoppering approach. Either one or two benzylic bromide functions-located at the para-positions of dibenzylammonium-based ions, which become encircled by dibenzo[24]crown-8 macrocycles during the initial thermodynamically controlled phases that mark the recognition events-serve as sites for nucleophilic attack by triphenylphosphine during the subsequent kinetic stages that lead to the formation of the two [2]rotaxanes.
本文言語 | English |
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ページ(範囲) | 129-132 |
ページ数 | 4 |
ジャーナル | Organic Letters |
巻 | 1 |
号 | 1 |
出版ステータス | Published - 1999 7月 15 |
外部発表 | はい |
ASJC Scopus subject areas
- 分子医療